Merge pull request #427 from touwaeriol/pr/upgrade-antigravity-ua

chore: upgrade Antigravity User-Agent to 1.15.8

.github/workflows/backend-ci.yml

@@ -19,7 +19,7 @@ jobs:
           cache: true
       - name: Verify Go version
         run: |
-          go version | grep -q 'go1.25.5'
+          go version | grep -q 'go1.25.6'
       - name: Unit tests
         working-directory: backend
         run: make test-unit
@@ -38,7 +38,7 @@ jobs:
           cache: true
       - name: Verify Go version
         run: |
-          go version | grep -q 'go1.25.5'
+          go version | grep -q 'go1.25.6'
       - name: golangci-lint
         uses: golangci/golangci-lint-action@v9
         with:

.github/workflows/release.yml

@@ -115,7 +115,7 @@ jobs:
 
       - name: Verify Go version
         run: |
-          go version | grep -q 'go1.25.5'
+          go version | grep -q 'go1.25.6'
 
       # Docker setup for GoReleaser
       - name: Set up QEMU
@@ -222,8 +222,9 @@ jobs:
           REPO="${{ github.repository }}"
           GHCR_IMAGE="ghcr.io/${REPO,,}"  # ${,,} converts to lowercase
 
-          # 获取 tag message 内容
+          # 获取 tag message 内容并转义 Markdown 特殊字符
           TAG_MESSAGE='${{ steps.tag_message.outputs.message }}'
+          TAG_MESSAGE=$(echo "$TAG_MESSAGE" | sed 's/\([_*`\[]\)/\\\1/g')
 
           # 限制消息长度（Telegram 消息限制 4096 字符，预留空间给头尾固定内容）
           if [ ${#TAG_MESSAGE} -gt 3500 ]; then

.github/workflows/security-scan.yml

@@ -22,7 +22,7 @@ jobs:
           cache-dependency-path: backend/go.sum
       - name: Verify Go version
         run: |
-          go version | grep -q 'go1.25.5'
+          go version | grep -q 'go1.25.6'
       - name: Run govulncheck
         working-directory: backend
         run: |

Dockerfile

@@ -7,7 +7,7 @@
 # =============================================================================
 
 ARG NODE_IMAGE=node:24-alpine
-ARG GOLANG_IMAGE=golang:1.25.5-alpine
+ARG GOLANG_IMAGE=golang:1.25.6-alpine
 ARG ALPINE_IMAGE=alpine:3.20
 ARG GOPROXY=https://goproxy.cn,direct
 ARG GOSUMDB=sum.golang.google.cn

README.md

@@ -18,7 +18,7 @@ English | [中文](README_CN.md)
 
 ## Demo
 
-Try Sub2API online: **https://v2.pincc.ai/**
+Try Sub2API online: **https://demo.sub2api.org/**
 
 Demo credentials (shared demo environment; **not** created automatically for self-hosted installs):
 

backend/cmd/server/VERSION

@@ -1 +1 @@
-0.1.46
+0.1.61

backend/cmd/server/wire.go

@@ -70,6 +70,7 @@ func provideCleanup(
 	schedulerSnapshot *service.SchedulerSnapshotService,
 	tokenRefresh *service.TokenRefreshService,
 	accountExpiry *service.AccountExpiryService,
+	subscriptionExpiry *service.SubscriptionExpiryService,
 	usageCleanup *service.UsageCleanupService,
 	pricing *service.PricingService,
 	emailQueue *service.EmailQueueService,
@@ -138,6 +139,10 @@ func provideCleanup(
 				accountExpiry.Stop()
 				return nil
 			}},
+			{"SubscriptionExpiryService", func() error {
+				subscriptionExpiry.Stop()
+				return nil
+			}},
 			{"PricingService", func() error {
 				pricing.Stop()
 				return nil

backend/cmd/server/wire_gen.go

@@ -63,7 +63,13 @@ func initializeApplication(buildInfo handler.BuildInfo) (*Application, error) {
 	promoService := service.NewPromoService(promoCodeRepository, userRepository, billingCacheService, client, apiKeyAuthCacheInvalidator)
 	authService := service.NewAuthService(userRepository, configConfig, settingService, emailService, turnstileService, emailQueueService, promoService)
 	userService := service.NewUserService(userRepository, apiKeyAuthCacheInvalidator)
-	authHandler := handler.NewAuthHandler(configConfig, authService, userService, settingService, promoService)
+	secretEncryptor, err := repository.NewAESEncryptor(configConfig)
+	if err != nil {
+		return nil, err
+	}
+	totpCache := repository.NewTotpCache(redisClient)
+	totpService := service.NewTotpService(userRepository, secretEncryptor, totpCache, settingService, emailService, emailQueueService)
+	authHandler := handler.NewAuthHandler(configConfig, authService, userService, settingService, promoService, totpService)
 	userHandler := handler.NewUserHandler(userService)
 	apiKeyHandler := handler.NewAPIKeyHandler(apiKeyService)
 	usageLogRepository := repository.NewUsageLogRepository(client, db)
@@ -165,7 +171,8 @@ func initializeApplication(buildInfo handler.BuildInfo) (*Application, error) {
 	gatewayHandler := handler.NewGatewayHandler(gatewayService, geminiMessagesCompatService, antigravityGatewayService, userService, concurrencyService, billingCacheService, configConfig)
 	openAIGatewayHandler := handler.NewOpenAIGatewayHandler(openAIGatewayService, concurrencyService, billingCacheService, configConfig)
 	handlerSettingHandler := handler.ProvideSettingHandler(settingService, buildInfo)
-	handlers := handler.ProvideHandlers(authHandler, userHandler, apiKeyHandler, usageHandler, redeemHandler, subscriptionHandler, adminHandlers, gatewayHandler, openAIGatewayHandler, handlerSettingHandler)
+	totpHandler := handler.NewTotpHandler(totpService)
+	handlers := handler.ProvideHandlers(authHandler, userHandler, apiKeyHandler, usageHandler, redeemHandler, subscriptionHandler, adminHandlers, gatewayHandler, openAIGatewayHandler, handlerSettingHandler, totpHandler)
 	jwtAuthMiddleware := middleware.NewJWTAuthMiddleware(authService, userService)
 	adminAuthMiddleware := middleware.NewAdminAuthMiddleware(authService, userService, settingService)
 	apiKeyAuthMiddleware := middleware.NewAPIKeyAuthMiddleware(apiKeyService, subscriptionService, configConfig)
@@ -178,7 +185,8 @@ func initializeApplication(buildInfo handler.BuildInfo) (*Application, error) {
 	opsScheduledReportService := service.ProvideOpsScheduledReportService(opsService, userService, emailService, redisClient, configConfig)
 	tokenRefreshService := service.ProvideTokenRefreshService(accountRepository, oAuthService, openAIOAuthService, geminiOAuthService, antigravityOAuthService, compositeTokenCacheInvalidator, configConfig)
 	accountExpiryService := service.ProvideAccountExpiryService(accountRepository)
-	v := provideCleanup(client, redisClient, opsMetricsCollector, opsAggregationService, opsAlertEvaluatorService, opsCleanupService, opsScheduledReportService, schedulerSnapshotService, tokenRefreshService, accountExpiryService, usageCleanupService, pricingService, emailQueueService, billingCacheService, oAuthService, openAIOAuthService, geminiOAuthService, antigravityOAuthService)
+	subscriptionExpiryService := service.ProvideSubscriptionExpiryService(userSubscriptionRepository)
+	v := provideCleanup(client, redisClient, opsMetricsCollector, opsAggregationService, opsAlertEvaluatorService, opsCleanupService, opsScheduledReportService, schedulerSnapshotService, tokenRefreshService, accountExpiryService, subscriptionExpiryService, usageCleanupService, pricingService, emailQueueService, billingCacheService, oAuthService, openAIOAuthService, geminiOAuthService, antigravityOAuthService)
 	application := &Application{
 		Server:  httpServer,
 		Cleanup: v,
@@ -211,6 +219,7 @@ func provideCleanup(
 	schedulerSnapshot *service.SchedulerSnapshotService,
 	tokenRefresh *service.TokenRefreshService,
 	accountExpiry *service.AccountExpiryService,
+	subscriptionExpiry *service.SubscriptionExpiryService,
 	usageCleanup *service.UsageCleanupService,
 	pricing *service.PricingService,
 	emailQueue *service.EmailQueueService,
@@ -278,6 +287,10 @@ func provideCleanup(
 				accountExpiry.Stop()
 				return nil
 			}},
+			{"SubscriptionExpiryService", func() error {
+				subscriptionExpiry.Stop()
+				return nil
+			}},
 			{"PricingService", func() error {
 				pricing.Stop()
 				return nil

backend/ent/migrate/schema.go

@@ -610,6 +610,9 @@ var (
 		{Name: "status", Type: field.TypeString, Size: 20, Default: "active"},
 		{Name: "username", Type: field.TypeString, Size: 100, Default: ""},
 		{Name: "notes", Type: field.TypeString, Default: "", SchemaType: map[string]string{"postgres": "text"}},
+		{Name: "totp_secret_encrypted", Type: field.TypeString, Nullable: true, SchemaType: map[string]string{"postgres": "text"}},
+		{Name: "totp_enabled", Type: field.TypeBool, Default: false},
+		{Name: "totp_enabled_at", Type: field.TypeTime, Nullable: true},
 	}
 	// UsersTable holds the schema information for the "users" table.
 	UsersTable = &schema.Table{

backend/ent/mutation.go

@@ -14360,6 +14360,9 @@ type UserMutation struct {
 	status                        *string
 	username                      *string
 	notes                         *string
+	totp_secret_encrypted         *string
+	totp_enabled                  *bool
+	totp_enabled_at               *time.Time
 	clearedFields                 map[string]struct{}
 	api_keys                      map[int64]struct{}
 	removedapi_keys               map[int64]struct{}
@@ -14937,6 +14940,140 @@ func (m *UserMutation) ResetNotes() {
 	m.notes = nil
 }
 
+// SetTotpSecretEncrypted sets the "totp_secret_encrypted" field.
+func (m *UserMutation) SetTotpSecretEncrypted(s string) {
+	m.totp_secret_encrypted = &s
+}
+
+// TotpSecretEncrypted returns the value of the "totp_secret_encrypted" field in the mutation.
+func (m *UserMutation) TotpSecretEncrypted() (r string, exists bool) {
+	v := m.totp_secret_encrypted
+	if v == nil {
+		return
+	}
+	return *v, true
+}
+
+// OldTotpSecretEncrypted returns the old "totp_secret_encrypted" field's value of the User entity.
+// If the User object wasn't provided to the builder, the object is fetched from the database.
+// An error is returned if the mutation operation is not UpdateOne, or the database query fails.
+func (m *UserMutation) OldTotpSecretEncrypted(ctx context.Context) (v *string, err error) {
+	if !m.op.Is(OpUpdateOne) {
+		return v, errors.New("OldTotpSecretEncrypted is only allowed on UpdateOne operations")
+	}
+	if m.id == nil || m.oldValue == nil {
+		return v, errors.New("OldTotpSecretEncrypted requires an ID field in the mutation")
+	}
+	oldValue, err := m.oldValue(ctx)
+	if err != nil {
+		return v, fmt.Errorf("querying old value for OldTotpSecretEncrypted: %w", err)
+	}
+	return oldValue.TotpSecretEncrypted, nil
+}
+
+// ClearTotpSecretEncrypted clears the value of the "totp_secret_encrypted" field.
+func (m *UserMutation) ClearTotpSecretEncrypted() {
+	m.totp_secret_encrypted = nil
+	m.clearedFields[user.FieldTotpSecretEncrypted] = struct{}{}
+}
+
+// TotpSecretEncryptedCleared returns if the "totp_secret_encrypted" field was cleared in this mutation.
+func (m *UserMutation) TotpSecretEncryptedCleared() bool {
+	_, ok := m.clearedFields[user.FieldTotpSecretEncrypted]
+	return ok
+}
+
+// ResetTotpSecretEncrypted resets all changes to the "totp_secret_encrypted" field.
+func (m *UserMutation) ResetTotpSecretEncrypted() {
+	m.totp_secret_encrypted = nil
+	delete(m.clearedFields, user.FieldTotpSecretEncrypted)
+}
+
+// SetTotpEnabled sets the "totp_enabled" field.
+func (m *UserMutation) SetTotpEnabled(b bool) {
+	m.totp_enabled = &b
+}
+
+// TotpEnabled returns the value of the "totp_enabled" field in the mutation.
+func (m *UserMutation) TotpEnabled() (r bool, exists bool) {
+	v := m.totp_enabled
+	if v == nil {
+		return
+	}
+	return *v, true
+}
+
+// OldTotpEnabled returns the old "totp_enabled" field's value of the User entity.
+// If the User object wasn't provided to the builder, the object is fetched from the database.
+// An error is returned if the mutation operation is not UpdateOne, or the database query fails.
+func (m *UserMutation) OldTotpEnabled(ctx context.Context) (v bool, err error) {
+	if !m.op.Is(OpUpdateOne) {
+		return v, errors.New("OldTotpEnabled is only allowed on UpdateOne operations")
+	}
+	if m.id == nil || m.oldValue == nil {
+		return v, errors.New("OldTotpEnabled requires an ID field in the mutation")
+	}
+	oldValue, err := m.oldValue(ctx)
+	if err != nil {
+		return v, fmt.Errorf("querying old value for OldTotpEnabled: %w", err)
+	}
+	return oldValue.TotpEnabled, nil
+}
+
+// ResetTotpEnabled resets all changes to the "totp_enabled" field.
+func (m *UserMutation) ResetTotpEnabled() {
+	m.totp_enabled = nil
+}
+
+// SetTotpEnabledAt sets the "totp_enabled_at" field.
+func (m *UserMutation) SetTotpEnabledAt(t time.Time) {
+	m.totp_enabled_at = &t
+}
+
+// TotpEnabledAt returns the value of the "totp_enabled_at" field in the mutation.
+func (m *UserMutation) TotpEnabledAt() (r time.Time, exists bool) {
+	v := m.totp_enabled_at
+	if v == nil {
+		return
+	}
+	return *v, true
+}
+
+// OldTotpEnabledAt returns the old "totp_enabled_at" field's value of the User entity.
+// If the User object wasn't provided to the builder, the object is fetched from the database.
+// An error is returned if the mutation operation is not UpdateOne, or the database query fails.
+func (m *UserMutation) OldTotpEnabledAt(ctx context.Context) (v *time.Time, err error) {
+	if !m.op.Is(OpUpdateOne) {
+		return v, errors.New("OldTotpEnabledAt is only allowed on UpdateOne operations")
+	}
+	if m.id == nil || m.oldValue == nil {
+		return v, errors.New("OldTotpEnabledAt requires an ID field in the mutation")
+	}
+	oldValue, err := m.oldValue(ctx)
+	if err != nil {
+		return v, fmt.Errorf("querying old value for OldTotpEnabledAt: %w", err)
+	}
+	return oldValue.TotpEnabledAt, nil
+}
+
+// ClearTotpEnabledAt clears the value of the "totp_enabled_at" field.
+func (m *UserMutation) ClearTotpEnabledAt() {
+	m.totp_enabled_at = nil
+	m.clearedFields[user.FieldTotpEnabledAt] = struct{}{}
+}
+
+// TotpEnabledAtCleared returns if the "totp_enabled_at" field was cleared in this mutation.
+func (m *UserMutation) TotpEnabledAtCleared() bool {
+	_, ok := m.clearedFields[user.FieldTotpEnabledAt]
+	return ok
+}
+
+// ResetTotpEnabledAt resets all changes to the "totp_enabled_at" field.
+func (m *UserMutation) ResetTotpEnabledAt() {
+	m.totp_enabled_at = nil
+	delete(m.clearedFields, user.FieldTotpEnabledAt)
+}
+
 // AddAPIKeyIDs adds the "api_keys" edge to the APIKey entity by ids.
 func (m *UserMutation) AddAPIKeyIDs(ids ...int64) {
 	if m.api_keys == nil {
@@ -15403,7 +15540,7 @@ func (m *UserMutation) Type() string {
 // order to get all numeric fields that were incremented/decremented, call
 // AddedFields().
 func (m *UserMutation) Fields() []string {
-	fields := make([]string, 0, 11)
+	fields := make([]string, 0, 14)
 	if m.created_at != nil {
 		fields = append(fields, user.FieldCreatedAt)
 	}
@@ -15437,6 +15574,15 @@ func (m *UserMutation) Fields() []string {
 	if m.notes != nil {
 		fields = append(fields, user.FieldNotes)
 	}
+	if m.totp_secret_encrypted != nil {
+		fields = append(fields, user.FieldTotpSecretEncrypted)
+	}
+	if m.totp_enabled != nil {
+		fields = append(fields, user.FieldTotpEnabled)
+	}
+	if m.totp_enabled_at != nil {
+		fields = append(fields, user.FieldTotpEnabledAt)
+	}
 	return fields
 }
 
@@ -15467,6 +15613,12 @@ func (m *UserMutation) Field(name string) (ent.Value, bool) {
 		return m.Username()
 	case user.FieldNotes:
 		return m.Notes()
+	case user.FieldTotpSecretEncrypted:
+		return m.TotpSecretEncrypted()
+	case user.FieldTotpEnabled:
+		return m.TotpEnabled()
+	case user.FieldTotpEnabledAt:
+		return m.TotpEnabledAt()
 	}
 	return nil, false
 }
@@ -15498,6 +15650,12 @@ func (m *UserMutation) OldField(ctx context.Context, name string) (ent.Value, er
 		return m.OldUsername(ctx)
 	case user.FieldNotes:
 		return m.OldNotes(ctx)
+	case user.FieldTotpSecretEncrypted:
+		return m.OldTotpSecretEncrypted(ctx)
+	case user.FieldTotpEnabled:
+		return m.OldTotpEnabled(ctx)
+	case user.FieldTotpEnabledAt:
+		return m.OldTotpEnabledAt(ctx)
 	}
 	return nil, fmt.Errorf("unknown User field %s", name)
 }
@@ -15584,6 +15742,27 @@ func (m *UserMutation) SetField(name string, value ent.Value) error {
 		}
 		m.SetNotes(v)
 		return nil
+	case user.FieldTotpSecretEncrypted:
+		v, ok := value.(string)
+		if !ok {
+			return fmt.Errorf("unexpected type %T for field %s", value, name)
+		}
+		m.SetTotpSecretEncrypted(v)
+		return nil
+	case user.FieldTotpEnabled:
+		v, ok := value.(bool)
+		if !ok {
+			return fmt.Errorf("unexpected type %T for field %s", value, name)
+		}
+		m.SetTotpEnabled(v)
+		return nil
+	case user.FieldTotpEnabledAt:
+		v, ok := value.(time.Time)
+		if !ok {
+			return fmt.Errorf("unexpected type %T for field %s", value, name)
+		}
+		m.SetTotpEnabledAt(v)
+		return nil
 	}
 	return fmt.Errorf("unknown User field %s", name)
 }
@@ -15644,6 +15823,12 @@ func (m *UserMutation) ClearedFields() []string {
 	if m.FieldCleared(user.FieldDeletedAt) {
 		fields = append(fields, user.FieldDeletedAt)
 	}
+	if m.FieldCleared(user.FieldTotpSecretEncrypted) {
+		fields = append(fields, user.FieldTotpSecretEncrypted)
+	}
+	if m.FieldCleared(user.FieldTotpEnabledAt) {
+		fields = append(fields, user.FieldTotpEnabledAt)
+	}
 	return fields
 }
 
@@ -15661,6 +15846,12 @@ func (m *UserMutation) ClearField(name string) error {
 	case user.FieldDeletedAt:
 		m.ClearDeletedAt()
 		return nil
+	case user.FieldTotpSecretEncrypted:
+		m.ClearTotpSecretEncrypted()
+		return nil
+	case user.FieldTotpEnabledAt:
+		m.ClearTotpEnabledAt()
+		return nil
 	}
 	return fmt.Errorf("unknown User nullable field %s", name)
 }
@@ -15702,6 +15893,15 @@ func (m *UserMutation) ResetField(name string) error {
 	case user.FieldNotes:
 		m.ResetNotes()
 		return nil
+	case user.FieldTotpSecretEncrypted:
+		m.ResetTotpSecretEncrypted()
+		return nil
+	case user.FieldTotpEnabled:
+		m.ResetTotpEnabled()
+		return nil
+	case user.FieldTotpEnabledAt:
+		m.ResetTotpEnabledAt()
+		return nil
 	}
 	return fmt.Errorf("unknown User field %s", name)
 }

backend/ent/runtime/runtime.go

@@ -736,6 +736,10 @@ func init() {
 	userDescNotes := userFields[7].Descriptor()
 	// user.DefaultNotes holds the default value on creation for the notes field.
 	user.DefaultNotes = userDescNotes.Default.(string)
+	// userDescTotpEnabled is the schema descriptor for totp_enabled field.
+	userDescTotpEnabled := userFields[9].Descriptor()
+	// user.DefaultTotpEnabled holds the default value on creation for the totp_enabled field.
+	user.DefaultTotpEnabled = userDescTotpEnabled.Default.(bool)
 	userallowedgroupFields := schema.UserAllowedGroup{}.Fields()
 	_ = userallowedgroupFields
 	// userallowedgroupDescCreatedAt is the schema descriptor for created_at field.

backend/ent/schema/user.go

@@ -61,6 +61,17 @@ func (User) Fields() []ent.Field {
 		field.String("notes").
 			SchemaType(map[string]string{dialect.Postgres: "text"}).
 			Default(""),
+
+		// TOTP 双因素认证字段
+		field.String("totp_secret_encrypted").
+			SchemaType(map[string]string{dialect.Postgres: "text"}).
+			Optional().
+			Nillable(),
+		field.Bool("totp_enabled").
+			Default(false),
+		field.Time("totp_enabled_at").
+			Optional().
+			Nillable(),
 	}
 }
 

backend/ent/user.go

@@ -39,6 +39,12 @@ type User struct {
 	Username string `json:"username,omitempty"`
 	// Notes holds the value of the "notes" field.
 	Notes string `json:"notes,omitempty"`
+	// TotpSecretEncrypted holds the value of the "totp_secret_encrypted" field.
+	TotpSecretEncrypted *string `json:"totp_secret_encrypted,omitempty"`
+	// TotpEnabled holds the value of the "totp_enabled" field.
+	TotpEnabled bool `json:"totp_enabled,omitempty"`
+	// TotpEnabledAt holds the value of the "totp_enabled_at" field.
+	TotpEnabledAt *time.Time `json:"totp_enabled_at,omitempty"`
 	// Edges holds the relations/edges for other nodes in the graph.
 	// The values are being populated by the UserQuery when eager-loading is set.
 	Edges        UserEdges `json:"edges"`
@@ -156,13 +162,15 @@ func (*User) scanValues(columns []string) ([]any, error) {
 	values := make([]any, len(columns))
 	for i := range columns {
 		switch columns[i] {
+		case user.FieldTotpEnabled:
+			values[i] = new(sql.NullBool)
 		case user.FieldBalance:
 			values[i] = new(sql.NullFloat64)
 		case user.FieldID, user.FieldConcurrency:
 			values[i] = new(sql.NullInt64)
-		case user.FieldEmail, user.FieldPasswordHash, user.FieldRole, user.FieldStatus, user.FieldUsername, user.FieldNotes:
+		case user.FieldEmail, user.FieldPasswordHash, user.FieldRole, user.FieldStatus, user.FieldUsername, user.FieldNotes, user.FieldTotpSecretEncrypted:
 			values[i] = new(sql.NullString)
-		case user.FieldCreatedAt, user.FieldUpdatedAt, user.FieldDeletedAt:
+		case user.FieldCreatedAt, user.FieldUpdatedAt, user.FieldDeletedAt, user.FieldTotpEnabledAt:
 			values[i] = new(sql.NullTime)
 		default:
 			values[i] = new(sql.UnknownType)
@@ -252,6 +260,26 @@ func (_m *User) assignValues(columns []string, values []any) error {
 			} else if value.Valid {
 				_m.Notes = value.String
 			}
+		case user.FieldTotpSecretEncrypted:
+			if value, ok := values[i].(*sql.NullString); !ok {
+				return fmt.Errorf("unexpected type %T for field totp_secret_encrypted", values[i])
+			} else if value.Valid {
+				_m.TotpSecretEncrypted = new(string)
+				*_m.TotpSecretEncrypted = value.String
+			}
+		case user.FieldTotpEnabled:
+			if value, ok := values[i].(*sql.NullBool); !ok {
+				return fmt.Errorf("unexpected type %T for field totp_enabled", values[i])
+			} else if value.Valid {
+				_m.TotpEnabled = value.Bool
+			}
+		case user.FieldTotpEnabledAt:
+			if value, ok := values[i].(*sql.NullTime); !ok {
+				return fmt.Errorf("unexpected type %T for field totp_enabled_at", values[i])
+			} else if value.Valid {
+				_m.TotpEnabledAt = new(time.Time)
+				*_m.TotpEnabledAt = value.Time
+			}
 		default:
 			_m.selectValues.Set(columns[i], values[i])
 		}
@@ -367,6 +395,19 @@ func (_m *User) String() string {
 	builder.WriteString(", ")
 	builder.WriteString("notes=")
 	builder.WriteString(_m.Notes)
+	builder.WriteString(", ")
+	if v := _m.TotpSecretEncrypted; v != nil {
+		builder.WriteString("totp_secret_encrypted=")
+		builder.WriteString(*v)
+	}
+	builder.WriteString(", ")
+	builder.WriteString("totp_enabled=")
+	builder.WriteString(fmt.Sprintf("%v", _m.TotpEnabled))
+	builder.WriteString(", ")
+	if v := _m.TotpEnabledAt; v != nil {
+		builder.WriteString("totp_enabled_at=")
+		builder.WriteString(v.Format(time.ANSIC))
+	}
 	builder.WriteByte(')')
 	return builder.String()
 }

backend/ent/user/user.go

@@ -37,6 +37,12 @@ const (
 	FieldUsername = "username"
 	// FieldNotes holds the string denoting the notes field in the database.
 	FieldNotes = "notes"
+	// FieldTotpSecretEncrypted holds the string denoting the totp_secret_encrypted field in the database.
+	FieldTotpSecretEncrypted = "totp_secret_encrypted"
+	// FieldTotpEnabled holds the string denoting the totp_enabled field in the database.
+	FieldTotpEnabled = "totp_enabled"
+	// FieldTotpEnabledAt holds the string denoting the totp_enabled_at field in the database.
+	FieldTotpEnabledAt = "totp_enabled_at"
 	// EdgeAPIKeys holds the string denoting the api_keys edge name in mutations.
 	EdgeAPIKeys = "api_keys"
 	// EdgeRedeemCodes holds the string denoting the redeem_codes edge name in mutations.
@@ -134,6 +140,9 @@ var Columns = []string{
 	FieldStatus,
 	FieldUsername,
 	FieldNotes,
+	FieldTotpSecretEncrypted,
+	FieldTotpEnabled,
+	FieldTotpEnabledAt,
 }
 
 var (
@@ -188,6 +197,8 @@ var (
 	UsernameValidator func(string) error
 	// DefaultNotes holds the default value on creation for the "notes" field.
 	DefaultNotes string
+	// DefaultTotpEnabled holds the default value on creation for the "totp_enabled" field.
+	DefaultTotpEnabled bool
 )
 
 // OrderOption defines the ordering options for the User queries.
@@ -253,6 +264,21 @@ func ByNotes(opts ...sql.OrderTermOption) OrderOption {
 	return sql.OrderByField(FieldNotes, opts...).ToFunc()
 }
 
+// ByTotpSecretEncrypted orders the results by the totp_secret_encrypted field.
+func ByTotpSecretEncrypted(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldTotpSecretEncrypted, opts...).ToFunc()
+}
+
+// ByTotpEnabled orders the results by the totp_enabled field.
+func ByTotpEnabled(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldTotpEnabled, opts...).ToFunc()
+}
+
+// ByTotpEnabledAt orders the results by the totp_enabled_at field.
+func ByTotpEnabledAt(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldTotpEnabledAt, opts...).ToFunc()
+}
+
 // ByAPIKeysCount orders the results by api_keys count.
 func ByAPIKeysCount(opts ...sql.OrderTermOption) OrderOption {
 	return func(s *sql.Selector) {

backend/ent/user/where.go

@@ -110,6 +110,21 @@ func Notes(v string) predicate.User {
 	return predicate.User(sql.FieldEQ(FieldNotes, v))
 }
 
+// TotpSecretEncrypted applies equality check predicate on the "totp_secret_encrypted" field. It's identical to TotpSecretEncryptedEQ.
+func TotpSecretEncrypted(v string) predicate.User {
+	return predicate.User(sql.FieldEQ(FieldTotpSecretEncrypted, v))
+}
+
+// TotpEnabled applies equality check predicate on the "totp_enabled" field. It's identical to TotpEnabledEQ.
+func TotpEnabled(v bool) predicate.User {
+	return predicate.User(sql.FieldEQ(FieldTotpEnabled, v))
+}
+
+// TotpEnabledAt applies equality check predicate on the "totp_enabled_at" field. It's identical to TotpEnabledAtEQ.
+func TotpEnabledAt(v time.Time) predicate.User {
+	return predicate.User(sql.FieldEQ(FieldTotpEnabledAt, v))
+}
+
 // CreatedAtEQ applies the EQ predicate on the "created_at" field.
 func CreatedAtEQ(v time.Time) predicate.User {
 	return predicate.User(sql.FieldEQ(FieldCreatedAt, v))
@@ -710,6 +725,141 @@ func NotesContainsFold(v string) predicate.User {
 	return predicate.User(sql.FieldContainsFold(FieldNotes, v))
 }
 
+// TotpSecretEncryptedEQ applies the EQ predicate on the "totp_secret_encrypted" field.
+func TotpSecretEncryptedEQ(v string) predicate.User {
+	return predicate.User(sql.FieldEQ(FieldTotpSecretEncrypted, v))
+}
+
+// TotpSecretEncryptedNEQ applies the NEQ predicate on the "totp_secret_encrypted" field.
+func TotpSecretEncryptedNEQ(v string) predicate.User {
+	return predicate.User(sql.FieldNEQ(FieldTotpSecretEncrypted, v))
+}
+
+// TotpSecretEncryptedIn applies the In predicate on the "totp_secret_encrypted" field.
+func TotpSecretEncryptedIn(vs ...string) predicate.User {
+	return predicate.User(sql.FieldIn(FieldTotpSecretEncrypted, vs...))
+}
+
+// TotpSecretEncryptedNotIn applies the NotIn predicate on the "totp_secret_encrypted" field.
+func TotpSecretEncryptedNotIn(vs ...string) predicate.User {
+	return predicate.User(sql.FieldNotIn(FieldTotpSecretEncrypted, vs...))
+}
+
+// TotpSecretEncryptedGT applies the GT predicate on the "totp_secret_encrypted" field.
+func TotpSecretEncryptedGT(v string) predicate.User {
+	return predicate.User(sql.FieldGT(FieldTotpSecretEncrypted, v))
+}
+
+// TotpSecretEncryptedGTE applies the GTE predicate on the "totp_secret_encrypted" field.
+func TotpSecretEncryptedGTE(v string) predicate.User {
+	return predicate.User(sql.FieldGTE(FieldTotpSecretEncrypted, v))
+}
+
+// TotpSecretEncryptedLT applies the LT predicate on the "totp_secret_encrypted" field.
+func TotpSecretEncryptedLT(v string) predicate.User {
+	return predicate.User(sql.FieldLT(FieldTotpSecretEncrypted, v))
+}
+
+// TotpSecretEncryptedLTE applies the LTE predicate on the "totp_secret_encrypted" field.
+func TotpSecretEncryptedLTE(v string) predicate.User {
+	return predicate.User(sql.FieldLTE(FieldTotpSecretEncrypted, v))
+}
+
+// TotpSecretEncryptedContains applies the Contains predicate on the "totp_secret_encrypted" field.
+func TotpSecretEncryptedContains(v string) predicate.User {
+	return predicate.User(sql.FieldContains(FieldTotpSecretEncrypted, v))
+}
+
+// TotpSecretEncryptedHasPrefix applies the HasPrefix predicate on the "totp_secret_encrypted" field.
+func TotpSecretEncryptedHasPrefix(v string) predicate.User {
+	return predicate.User(sql.FieldHasPrefix(FieldTotpSecretEncrypted, v))
+}
+
+// TotpSecretEncryptedHasSuffix applies the HasSuffix predicate on the "totp_secret_encrypted" field.
+func TotpSecretEncryptedHasSuffix(v string) predicate.User {
+	return predicate.User(sql.FieldHasSuffix(FieldTotpSecretEncrypted, v))
+}
+
+// TotpSecretEncryptedIsNil applies the IsNil predicate on the "totp_secret_encrypted" field.
+func TotpSecretEncryptedIsNil() predicate.User {
+	return predicate.User(sql.FieldIsNull(FieldTotpSecretEncrypted))
+}
+
+// TotpSecretEncryptedNotNil applies the NotNil predicate on the "totp_secret_encrypted" field.
+func TotpSecretEncryptedNotNil() predicate.User {
+	return predicate.User(sql.FieldNotNull(FieldTotpSecretEncrypted))
+}
+
+// TotpSecretEncryptedEqualFold applies the EqualFold predicate on the "totp_secret_encrypted" field.
+func TotpSecretEncryptedEqualFold(v string) predicate.User {
+	return predicate.User(sql.FieldEqualFold(FieldTotpSecretEncrypted, v))
+}
+
+// TotpSecretEncryptedContainsFold applies the ContainsFold predicate on the "totp_secret_encrypted" field.
+func TotpSecretEncryptedContainsFold(v string) predicate.User {
+	return predicate.User(sql.FieldContainsFold(FieldTotpSecretEncrypted, v))
+}
+
+// TotpEnabledEQ applies the EQ predicate on the "totp_enabled" field.
+func TotpEnabledEQ(v bool) predicate.User {
+	return predicate.User(sql.FieldEQ(FieldTotpEnabled, v))
+}
+
+// TotpEnabledNEQ applies the NEQ predicate on the "totp_enabled" field.
+func TotpEnabledNEQ(v bool) predicate.User {
+	return predicate.User(sql.FieldNEQ(FieldTotpEnabled, v))
+}
+
+// TotpEnabledAtEQ applies the EQ predicate on the "totp_enabled_at" field.
+func TotpEnabledAtEQ(v time.Time) predicate.User {
+	return predicate.User(sql.FieldEQ(FieldTotpEnabledAt, v))
+}
+
+// TotpEnabledAtNEQ applies the NEQ predicate on the "totp_enabled_at" field.
+func TotpEnabledAtNEQ(v time.Time) predicate.User {
+	return predicate.User(sql.FieldNEQ(FieldTotpEnabledAt, v))
+}
+
+// TotpEnabledAtIn applies the In predicate on the "totp_enabled_at" field.
+func TotpEnabledAtIn(vs ...time.Time) predicate.User {
+	return predicate.User(sql.FieldIn(FieldTotpEnabledAt, vs...))
+}
+
+// TotpEnabledAtNotIn applies the NotIn predicate on the "totp_enabled_at" field.
+func TotpEnabledAtNotIn(vs ...time.Time) predicate.User {
+	return predicate.User(sql.FieldNotIn(FieldTotpEnabledAt, vs...))
+}
+
+// TotpEnabledAtGT applies the GT predicate on the "totp_enabled_at" field.
+func TotpEnabledAtGT(v time.Time) predicate.User {
+	return predicate.User(sql.FieldGT(FieldTotpEnabledAt, v))
+}
+
+// TotpEnabledAtGTE applies the GTE predicate on the "totp_enabled_at" field.
+func TotpEnabledAtGTE(v time.Time) predicate.User {
+	return predicate.User(sql.FieldGTE(FieldTotpEnabledAt, v))
+}
+
+// TotpEnabledAtLT applies the LT predicate on the "totp_enabled_at" field.
+func TotpEnabledAtLT(v time.Time) predicate.User {
+	return predicate.User(sql.FieldLT(FieldTotpEnabledAt, v))
+}
+
+// TotpEnabledAtLTE applies the LTE predicate on the "totp_enabled_at" field.
+func TotpEnabledAtLTE(v time.Time) predicate.User {
+	return predicate.User(sql.FieldLTE(FieldTotpEnabledAt, v))
+}
+
+// TotpEnabledAtIsNil applies the IsNil predicate on the "totp_enabled_at" field.
+func TotpEnabledAtIsNil() predicate.User {
+	return predicate.User(sql.FieldIsNull(FieldTotpEnabledAt))
+}
+
+// TotpEnabledAtNotNil applies the NotNil predicate on the "totp_enabled_at" field.
+func TotpEnabledAtNotNil() predicate.User {
+	return predicate.User(sql.FieldNotNull(FieldTotpEnabledAt))
+}
+
 // HasAPIKeys applies the HasEdge predicate on the "api_keys" edge.
 func HasAPIKeys() predicate.User {
 	return predicate.User(func(s *sql.Selector) {

backend/ent/user_create.go

@@ -167,6 +167,48 @@ func (_c *UserCreate) SetNillableNotes(v *string) *UserCreate {
 	return _c
 }
 
+// SetTotpSecretEncrypted sets the "totp_secret_encrypted" field.
+func (_c *UserCreate) SetTotpSecretEncrypted(v string) *UserCreate {
+	_c.mutation.SetTotpSecretEncrypted(v)
+	return _c
+}
+
+// SetNillableTotpSecretEncrypted sets the "totp_secret_encrypted" field if the given value is not nil.
+func (_c *UserCreate) SetNillableTotpSecretEncrypted(v *string) *UserCreate {
+	if v != nil {
+		_c.SetTotpSecretEncrypted(*v)
+	}
+	return _c
+}
+
+// SetTotpEnabled sets the "totp_enabled" field.
+func (_c *UserCreate) SetTotpEnabled(v bool) *UserCreate {
+	_c.mutation.SetTotpEnabled(v)
+	return _c
+}
+
+// SetNillableTotpEnabled sets the "totp_enabled" field if the given value is not nil.
+func (_c *UserCreate) SetNillableTotpEnabled(v *bool) *UserCreate {
+	if v != nil {
+		_c.SetTotpEnabled(*v)
+	}
+	return _c
+}
+
+// SetTotpEnabledAt sets the "totp_enabled_at" field.
+func (_c *UserCreate) SetTotpEnabledAt(v time.Time) *UserCreate {
+	_c.mutation.SetTotpEnabledAt(v)
+	return _c
+}
+
+// SetNillableTotpEnabledAt sets the "totp_enabled_at" field if the given value is not nil.
+func (_c *UserCreate) SetNillableTotpEnabledAt(v *time.Time) *UserCreate {
+	if v != nil {
+		_c.SetTotpEnabledAt(*v)
+	}
+	return _c
+}
+
 // AddAPIKeyIDs adds the "api_keys" edge to the APIKey entity by IDs.
 func (_c *UserCreate) AddAPIKeyIDs(ids ...int64) *UserCreate {
 	_c.mutation.AddAPIKeyIDs(ids...)
@@ -362,6 +404,10 @@ func (_c *UserCreate) defaults() error {
 		v := user.DefaultNotes
 		_c.mutation.SetNotes(v)
 	}
+	if _, ok := _c.mutation.TotpEnabled(); !ok {
+		v := user.DefaultTotpEnabled
+		_c.mutation.SetTotpEnabled(v)
+	}
 	return nil
 }
 
@@ -422,6 +468,9 @@ func (_c *UserCreate) check() error {
 	if _, ok := _c.mutation.Notes(); !ok {
 		return &ValidationError{Name: "notes", err: errors.New(`ent: missing required field "User.notes"`)}
 	}
+	if _, ok := _c.mutation.TotpEnabled(); !ok {
+		return &ValidationError{Name: "totp_enabled", err: errors.New(`ent: missing required field "User.totp_enabled"`)}
+	}
 	return nil
 }
 
@@ -493,6 +542,18 @@ func (_c *UserCreate) createSpec() (*User, *sqlgraph.CreateSpec) {
 		_spec.SetField(user.FieldNotes, field.TypeString, value)
 		_node.Notes = value
 	}
+	if value, ok := _c.mutation.TotpSecretEncrypted(); ok {
+		_spec.SetField(user.FieldTotpSecretEncrypted, field.TypeString, value)
+		_node.TotpSecretEncrypted = &value
+	}
+	if value, ok := _c.mutation.TotpEnabled(); ok {
+		_spec.SetField(user.FieldTotpEnabled, field.TypeBool, value)
+		_node.TotpEnabled = value
+	}
+	if value, ok := _c.mutation.TotpEnabledAt(); ok {
+		_spec.SetField(user.FieldTotpEnabledAt, field.TypeTime, value)
+		_node.TotpEnabledAt = &value
+	}
 	if nodes := _c.mutation.APIKeysIDs(); len(nodes) > 0 {
 		edge := &sqlgraph.EdgeSpec{
 			Rel:     sqlgraph.O2M,
@@ -815,6 +876,54 @@ func (u *UserUpsert) UpdateNotes() *UserUpsert {
 	return u
 }
 
+// SetTotpSecretEncrypted sets the "totp_secret_encrypted" field.
+func (u *UserUpsert) SetTotpSecretEncrypted(v string) *UserUpsert {
+	u.Set(user.FieldTotpSecretEncrypted, v)
+	return u
+}
+
+// UpdateTotpSecretEncrypted sets the "totp_secret_encrypted" field to the value that was provided on create.
+func (u *UserUpsert) UpdateTotpSecretEncrypted() *UserUpsert {
+	u.SetExcluded(user.FieldTotpSecretEncrypted)
+	return u
+}
+
+// ClearTotpSecretEncrypted clears the value of the "totp_secret_encrypted" field.
+func (u *UserUpsert) ClearTotpSecretEncrypted() *UserUpsert {
+	u.SetNull(user.FieldTotpSecretEncrypted)
+	return u
+}
+
+// SetTotpEnabled sets the "totp_enabled" field.
+func (u *UserUpsert) SetTotpEnabled(v bool) *UserUpsert {
+	u.Set(user.FieldTotpEnabled, v)
+	return u
+}
+
+// UpdateTotpEnabled sets the "totp_enabled" field to the value that was provided on create.
+func (u *UserUpsert) UpdateTotpEnabled() *UserUpsert {
+	u.SetExcluded(user.FieldTotpEnabled)
+	return u
+}
+
+// SetTotpEnabledAt sets the "totp_enabled_at" field.
+func (u *UserUpsert) SetTotpEnabledAt(v time.Time) *UserUpsert {
+	u.Set(user.FieldTotpEnabledAt, v)
+	return u
+}
+
+// UpdateTotpEnabledAt sets the "totp_enabled_at" field to the value that was provided on create.
+func (u *UserUpsert) UpdateTotpEnabledAt() *UserUpsert {
+	u.SetExcluded(user.FieldTotpEnabledAt)
+	return u
+}
+
+// ClearTotpEnabledAt clears the value of the "totp_enabled_at" field.
+func (u *UserUpsert) ClearTotpEnabledAt() *UserUpsert {
+	u.SetNull(user.FieldTotpEnabledAt)
+	return u
+}
+
 // UpdateNewValues updates the mutable fields using the new values that were set on create.
 // Using this option is equivalent to using:
 //
@@ -1021,6 +1130,62 @@ func (u *UserUpsertOne) UpdateNotes() *UserUpsertOne {
 	})
 }
 
+// SetTotpSecretEncrypted sets the "totp_secret_encrypted" field.
+func (u *UserUpsertOne) SetTotpSecretEncrypted(v string) *UserUpsertOne {
+	return u.Update(func(s *UserUpsert) {
+		s.SetTotpSecretEncrypted(v)
+	})
+}
+
+// UpdateTotpSecretEncrypted sets the "totp_secret_encrypted" field to the value that was provided on create.
+func (u *UserUpsertOne) UpdateTotpSecretEncrypted() *UserUpsertOne {
+	return u.Update(func(s *UserUpsert) {
+		s.UpdateTotpSecretEncrypted()
+	})
+}
+
+// ClearTotpSecretEncrypted clears the value of the "totp_secret_encrypted" field.
+func (u *UserUpsertOne) ClearTotpSecretEncrypted() *UserUpsertOne {
+	return u.Update(func(s *UserUpsert) {
+		s.ClearTotpSecretEncrypted()
+	})
+}
+
+// SetTotpEnabled sets the "totp_enabled" field.
+func (u *UserUpsertOne) SetTotpEnabled(v bool) *UserUpsertOne {
+	return u.Update(func(s *UserUpsert) {
+		s.SetTotpEnabled(v)
+	})
+}
+
+// UpdateTotpEnabled sets the "totp_enabled" field to the value that was provided on create.
+func (u *UserUpsertOne) UpdateTotpEnabled() *UserUpsertOne {
+	return u.Update(func(s *UserUpsert) {
+		s.UpdateTotpEnabled()
+	})
+}
+
+// SetTotpEnabledAt sets the "totp_enabled_at" field.
+func (u *UserUpsertOne) SetTotpEnabledAt(v time.Time) *UserUpsertOne {
+	return u.Update(func(s *UserUpsert) {
+		s.SetTotpEnabledAt(v)
+	})
+}
+
+// UpdateTotpEnabledAt sets the "totp_enabled_at" field to the value that was provided on create.
+func (u *UserUpsertOne) UpdateTotpEnabledAt() *UserUpsertOne {
+	return u.Update(func(s *UserUpsert) {
+		s.UpdateTotpEnabledAt()
+	})
+}
+
+// ClearTotpEnabledAt clears the value of the "totp_enabled_at" field.
+func (u *UserUpsertOne) ClearTotpEnabledAt() *UserUpsertOne {
+	return u.Update(func(s *UserUpsert) {
+		s.ClearTotpEnabledAt()
+	})
+}
+
 // Exec executes the query.
 func (u *UserUpsertOne) Exec(ctx context.Context) error {
 	if len(u.create.conflict) == 0 {
@@ -1393,6 +1558,62 @@ func (u *UserUpsertBulk) UpdateNotes() *UserUpsertBulk {
 	})
 }
 
+// SetTotpSecretEncrypted sets the "totp_secret_encrypted" field.
+func (u *UserUpsertBulk) SetTotpSecretEncrypted(v string) *UserUpsertBulk {
+	return u.Update(func(s *UserUpsert) {
+		s.SetTotpSecretEncrypted(v)
+	})
+}
+
+// UpdateTotpSecretEncrypted sets the "totp_secret_encrypted" field to the value that was provided on create.
+func (u *UserUpsertBulk) UpdateTotpSecretEncrypted() *UserUpsertBulk {
+	return u.Update(func(s *UserUpsert) {
+		s.UpdateTotpSecretEncrypted()
+	})
+}
+
+// ClearTotpSecretEncrypted clears the value of the "totp_secret_encrypted" field.
+func (u *UserUpsertBulk) ClearTotpSecretEncrypted() *UserUpsertBulk {
+	return u.Update(func(s *UserUpsert) {
+		s.ClearTotpSecretEncrypted()
+	})
+}
+
+// SetTotpEnabled sets the "totp_enabled" field.
+func (u *UserUpsertBulk) SetTotpEnabled(v bool) *UserUpsertBulk {
+	return u.Update(func(s *UserUpsert) {
+		s.SetTotpEnabled(v)
+	})
+}
+
+// UpdateTotpEnabled sets the "totp_enabled" field to the value that was provided on create.
+func (u *UserUpsertBulk) UpdateTotpEnabled() *UserUpsertBulk {
+	return u.Update(func(s *UserUpsert) {
+		s.UpdateTotpEnabled()
+	})
+}
+
+// SetTotpEnabledAt sets the "totp_enabled_at" field.
+func (u *UserUpsertBulk) SetTotpEnabledAt(v time.Time) *UserUpsertBulk {
+	return u.Update(func(s *UserUpsert) {
+		s.SetTotpEnabledAt(v)
+	})
+}
+
+// UpdateTotpEnabledAt sets the "totp_enabled_at" field to the value that was provided on create.
+func (u *UserUpsertBulk) UpdateTotpEnabledAt() *UserUpsertBulk {
+	return u.Update(func(s *UserUpsert) {
+		s.UpdateTotpEnabledAt()
+	})
+}
+
+// ClearTotpEnabledAt clears the value of the "totp_enabled_at" field.
+func (u *UserUpsertBulk) ClearTotpEnabledAt() *UserUpsertBulk {
+	return u.Update(func(s *UserUpsert) {
+		s.ClearTotpEnabledAt()
+	})
+}
+
 // Exec executes the query.
 func (u *UserUpsertBulk) Exec(ctx context.Context) error {
 	if u.create.err != nil {

backend/ent/user_update.go

@@ -187,6 +187,60 @@ func (_u *UserUpdate) SetNillableNotes(v *string) *UserUpdate {
 	return _u
 }
 
+// SetTotpSecretEncrypted sets the "totp_secret_encrypted" field.
+func (_u *UserUpdate) SetTotpSecretEncrypted(v string) *UserUpdate {
+	_u.mutation.SetTotpSecretEncrypted(v)
+	return _u
+}
+
+// SetNillableTotpSecretEncrypted sets the "totp_secret_encrypted" field if the given value is not nil.
+func (_u *UserUpdate) SetNillableTotpSecretEncrypted(v *string) *UserUpdate {
+	if v != nil {
+		_u.SetTotpSecretEncrypted(*v)
+	}
+	return _u
+}
+
+// ClearTotpSecretEncrypted clears the value of the "totp_secret_encrypted" field.
+func (_u *UserUpdate) ClearTotpSecretEncrypted() *UserUpdate {
+	_u.mutation.ClearTotpSecretEncrypted()
+	return _u
+}
+
+// SetTotpEnabled sets the "totp_enabled" field.
+func (_u *UserUpdate) SetTotpEnabled(v bool) *UserUpdate {
+	_u.mutation.SetTotpEnabled(v)
+	return _u
+}
+
+// SetNillableTotpEnabled sets the "totp_enabled" field if the given value is not nil.
+func (_u *UserUpdate) SetNillableTotpEnabled(v *bool) *UserUpdate {
+	if v != nil {
+		_u.SetTotpEnabled(*v)
+	}
+	return _u
+}
+
+// SetTotpEnabledAt sets the "totp_enabled_at" field.
+func (_u *UserUpdate) SetTotpEnabledAt(v time.Time) *UserUpdate {
+	_u.mutation.SetTotpEnabledAt(v)
+	return _u
+}
+
+// SetNillableTotpEnabledAt sets the "totp_enabled_at" field if the given value is not nil.
+func (_u *UserUpdate) SetNillableTotpEnabledAt(v *time.Time) *UserUpdate {
+	if v != nil {
+		_u.SetTotpEnabledAt(*v)
+	}
+	return _u
+}
+
+// ClearTotpEnabledAt clears the value of the "totp_enabled_at" field.
+func (_u *UserUpdate) ClearTotpEnabledAt() *UserUpdate {
+	_u.mutation.ClearTotpEnabledAt()
+	return _u
+}
+
 // AddAPIKeyIDs adds the "api_keys" edge to the APIKey entity by IDs.
 func (_u *UserUpdate) AddAPIKeyIDs(ids ...int64) *UserUpdate {
 	_u.mutation.AddAPIKeyIDs(ids...)
@@ -603,6 +657,21 @@ func (_u *UserUpdate) sqlSave(ctx context.Context) (_node int, err error) {
 	if value, ok := _u.mutation.Notes(); ok {
 		_spec.SetField(user.FieldNotes, field.TypeString, value)
 	}
+	if value, ok := _u.mutation.TotpSecretEncrypted(); ok {
+		_spec.SetField(user.FieldTotpSecretEncrypted, field.TypeString, value)
+	}
+	if _u.mutation.TotpSecretEncryptedCleared() {
+		_spec.ClearField(user.FieldTotpSecretEncrypted, field.TypeString)
+	}
+	if value, ok := _u.mutation.TotpEnabled(); ok {
+		_spec.SetField(user.FieldTotpEnabled, field.TypeBool, value)
+	}
+	if value, ok := _u.mutation.TotpEnabledAt(); ok {
+		_spec.SetField(user.FieldTotpEnabledAt, field.TypeTime, value)
+	}
+	if _u.mutation.TotpEnabledAtCleared() {
+		_spec.ClearField(user.FieldTotpEnabledAt, field.TypeTime)
+	}
 	if _u.mutation.APIKeysCleared() {
 		edge := &sqlgraph.EdgeSpec{
 			Rel:     sqlgraph.O2M,
@@ -1147,6 +1216,60 @@ func (_u *UserUpdateOne) SetNillableNotes(v *string) *UserUpdateOne {
 	return _u
 }
 
+// SetTotpSecretEncrypted sets the "totp_secret_encrypted" field.
+func (_u *UserUpdateOne) SetTotpSecretEncrypted(v string) *UserUpdateOne {
+	_u.mutation.SetTotpSecretEncrypted(v)
+	return _u
+}
+
+// SetNillableTotpSecretEncrypted sets the "totp_secret_encrypted" field if the given value is not nil.
+func (_u *UserUpdateOne) SetNillableTotpSecretEncrypted(v *string) *UserUpdateOne {
+	if v != nil {
+		_u.SetTotpSecretEncrypted(*v)
+	}
+	return _u
+}
+
+// ClearTotpSecretEncrypted clears the value of the "totp_secret_encrypted" field.
+func (_u *UserUpdateOne) ClearTotpSecretEncrypted() *UserUpdateOne {
+	_u.mutation.ClearTotpSecretEncrypted()
+	return _u
+}
+
+// SetTotpEnabled sets the "totp_enabled" field.
+func (_u *UserUpdateOne) SetTotpEnabled(v bool) *UserUpdateOne {
+	_u.mutation.SetTotpEnabled(v)
+	return _u
+}
+
+// SetNillableTotpEnabled sets the "totp_enabled" field if the given value is not nil.
+func (_u *UserUpdateOne) SetNillableTotpEnabled(v *bool) *UserUpdateOne {
+	if v != nil {
+		_u.SetTotpEnabled(*v)
+	}
+	return _u
+}
+
+// SetTotpEnabledAt sets the "totp_enabled_at" field.
+func (_u *UserUpdateOne) SetTotpEnabledAt(v time.Time) *UserUpdateOne {
+	_u.mutation.SetTotpEnabledAt(v)
+	return _u
+}
+
+// SetNillableTotpEnabledAt sets the "totp_enabled_at" field if the given value is not nil.
+func (_u *UserUpdateOne) SetNillableTotpEnabledAt(v *time.Time) *UserUpdateOne {
+	if v != nil {
+		_u.SetTotpEnabledAt(*v)
+	}
+	return _u
+}
+
+// ClearTotpEnabledAt clears the value of the "totp_enabled_at" field.
+func (_u *UserUpdateOne) ClearTotpEnabledAt() *UserUpdateOne {
+	_u.mutation.ClearTotpEnabledAt()
+	return _u
+}
+
 // AddAPIKeyIDs adds the "api_keys" edge to the APIKey entity by IDs.
 func (_u *UserUpdateOne) AddAPIKeyIDs(ids ...int64) *UserUpdateOne {
 	_u.mutation.AddAPIKeyIDs(ids...)
@@ -1593,6 +1716,21 @@ func (_u *UserUpdateOne) sqlSave(ctx context.Context) (_node *User, err error) {
 	if value, ok := _u.mutation.Notes(); ok {
 		_spec.SetField(user.FieldNotes, field.TypeString, value)
 	}
+	if value, ok := _u.mutation.TotpSecretEncrypted(); ok {
+		_spec.SetField(user.FieldTotpSecretEncrypted, field.TypeString, value)
+	}
+	if _u.mutation.TotpSecretEncryptedCleared() {
+		_spec.ClearField(user.FieldTotpSecretEncrypted, field.TypeString)
+	}
+	if value, ok := _u.mutation.TotpEnabled(); ok {
+		_spec.SetField(user.FieldTotpEnabled, field.TypeBool, value)
+	}
+	if value, ok := _u.mutation.TotpEnabledAt(); ok {
+		_spec.SetField(user.FieldTotpEnabledAt, field.TypeTime, value)
+	}
+	if _u.mutation.TotpEnabledAtCleared() {
+		_spec.ClearField(user.FieldTotpEnabledAt, field.TypeTime)
+	}
 	if _u.mutation.APIKeysCleared() {
 		edge := &sqlgraph.EdgeSpec{
 			Rel:     sqlgraph.O2M,

backend/go.mod

@@ -1,6 +1,6 @@
 module github.com/Wei-Shaw/sub2api
 
-go 1.25.5
+go 1.25.6
 
 require (
 	entgo.io/ent v0.14.5
@@ -37,6 +37,7 @@ require (
 	github.com/andybalholm/brotli v1.2.0 // indirect
 	github.com/apparentlymart/go-textseg/v15 v15.0.0 // indirect
 	github.com/bmatcuk/doublestar v1.3.4 // indirect
+	github.com/boombuler/barcode v1.0.1-0.20190219062509-6c824513bacc // indirect
 	github.com/bytedance/sonic v1.9.1 // indirect
 	github.com/cenkalti/backoff/v4 v4.3.0 // indirect
 	github.com/cespare/xxhash/v2 v2.3.0 // indirect
@@ -106,6 +107,7 @@ require (
 	github.com/pkg/errors v0.9.1 // indirect
 	github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 // indirect
 	github.com/power-devops/perfstat v0.0.0-20210106213030-5aafc221ea8c // indirect
+	github.com/pquerna/otp v1.5.0 // indirect
 	github.com/quic-go/qpack v0.6.0 // indirect
 	github.com/quic-go/quic-go v0.57.1 // indirect
 	github.com/refraction-networking/utls v1.8.1 // indirect

backend/go.sum

@@ -20,6 +20,8 @@ github.com/apparentlymart/go-textseg/v15 v15.0.0 h1:uYvfpb3DyLSCGWnctWKGj857c6ew
 github.com/apparentlymart/go-textseg/v15 v15.0.0/go.mod h1:K8XmNZdhEBkdlyDdvbmmsvpAG721bKi0joRfFdHIWJ4=
 github.com/bmatcuk/doublestar v1.3.4 h1:gPypJ5xD31uhX6Tf54sDPUOBXTqKH4c9aPY66CyQrS0=
 github.com/bmatcuk/doublestar v1.3.4/go.mod h1:wiQtGV+rzVYxB7WIlirSN++5HPtPlXEo9MEoZQC/PmE=
+github.com/boombuler/barcode v1.0.1-0.20190219062509-6c824513bacc h1:biVzkmvwrH8WK8raXaxBx6fRVTlJILwEwQGL1I/ByEI=
+github.com/boombuler/barcode v1.0.1-0.20190219062509-6c824513bacc/go.mod h1:paBWMcWSl3LHKBqUq+rly7CNSldXjb2rDl3JlRe0mD8=
 github.com/bsm/ginkgo/v2 v2.12.0 h1:Ny8MWAHyOepLGlLKYmXG4IEkioBysk6GpaRTLC8zwWs=
 github.com/bsm/ginkgo/v2 v2.12.0/go.mod h1:SwYbGRRDovPVboqFv0tPTcG1sN61LM1Z4ARdbAV9g4c=
 github.com/bsm/gomega v1.27.10 h1:yeMWxP2pV2fG3FgAODIY8EiRE3dy0aeFYt4l7wh6yKA=
@@ -217,6 +219,8 @@ github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 h1:Jamvg5psRI
 github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/power-devops/perfstat v0.0.0-20210106213030-5aafc221ea8c h1:ncq/mPwQF4JjgDlrVEn3C11VoGHZN7m8qihwgMEtzYw=
 github.com/power-devops/perfstat v0.0.0-20210106213030-5aafc221ea8c/go.mod h1:OmDBASR4679mdNQnz2pUhc2G8CO2JrUAVFDRBDP/hJE=
+github.com/pquerna/otp v1.5.0 h1:NMMR+WrmaqXU4EzdGJEE1aUUI0AMRzsp96fFFWNPwxs=
+github.com/pquerna/otp v1.5.0/go.mod h1:dkJfzwRKNiegxyNb54X/3fLwhCynbMspSyWKnvi1AEg=
 github.com/prashantv/gostub v1.1.0 h1:BTyx3RfQjRHnUWaGF9oQos79AlQ5k8WNktv7VGvVH4g=
 github.com/prashantv/gostub v1.1.0/go.mod h1:A5zLQHz7ieHGG7is6LLXLz7I8+3LZzsrV0P1IAHhP5U=
 github.com/quic-go/qpack v0.6.0 h1:g7W+BMYynC1LbYLSqRt8PBg5Tgwxn214ZZR34VIOjz8=

backend/internal/config/config.go

@@ -47,6 +47,7 @@ type Config struct {
 	Redis        RedisConfig                `mapstructure:"redis"`
 	Ops          OpsConfig                  `mapstructure:"ops"`
 	JWT          JWTConfig                  `mapstructure:"jwt"`
+	Totp         TotpConfig                 `mapstructure:"totp"`
 	LinuxDo      LinuxDoConnectConfig       `mapstructure:"linuxdo_connect"`
 	Default      DefaultConfig              `mapstructure:"default"`
 	RateLimit    RateLimitConfig            `mapstructure:"rate_limit"`
@@ -466,6 +467,16 @@ type JWTConfig struct {
 	ExpireHour int    `mapstructure:"expire_hour"`
 }
 
+// TotpConfig TOTP 双因素认证配置
+type TotpConfig struct {
+	// EncryptionKey 用于加密 TOTP 密钥的 AES-256 密钥（32 字节 hex 编码）
+	// 如果为空，将自动生成一个随机密钥（仅适用于开发环境）
+	EncryptionKey string `mapstructure:"encryption_key"`
+	// EncryptionKeyConfigured 标记加密密钥是否为手动配置（非自动生成）
+	// 只有手动配置了密钥才允许在管理后台启用 TOTP 功能
+	EncryptionKeyConfigured bool `mapstructure:"-"`
+}
+
 type TurnstileConfig struct {
 	Required bool `mapstructure:"required"`
 }
@@ -626,6 +637,20 @@ func Load() (*Config, error) {
 		log.Println("Warning: JWT secret auto-generated. Consider setting a fixed secret for production.")
 	}
 
+	// Auto-generate TOTP encryption key if not set (32 bytes = 64 hex chars for AES-256)
+	cfg.Totp.EncryptionKey = strings.TrimSpace(cfg.Totp.EncryptionKey)
+	if cfg.Totp.EncryptionKey == "" {
+		key, err := generateJWTSecret(32) // Reuse the same random generation function
+		if err != nil {
+			return nil, fmt.Errorf("generate totp encryption key error: %w", err)
+		}
+		cfg.Totp.EncryptionKey = key
+		cfg.Totp.EncryptionKeyConfigured = false
+		log.Println("Warning: TOTP encryption key auto-generated. Consider setting a fixed key for production.")
+	} else {
+		cfg.Totp.EncryptionKeyConfigured = true
+	}
+
 	if err := cfg.Validate(); err != nil {
 		return nil, fmt.Errorf("validate config error: %w", err)
 	}
@@ -756,6 +781,9 @@ func setDefaults() {
 	viper.SetDefault("jwt.secret", "")
 	viper.SetDefault("jwt.expire_hour", 24)
 
+	// TOTP
+	viper.SetDefault("totp.encryption_key", "")
+
 	// Default
 	// Admin credentials are created via the setup flow (web wizard / CLI / AUTO_SETUP).
 	// Do not ship fixed defaults here to avoid insecure "known credentials" in production.

backend/internal/handler/admin/account_handler.go

@@ -547,9 +547,18 @@ func (h *AccountHandler) Refresh(c *gin.Context) {
 			}
 		}
 
-		// 如果 project_id 获取失败，先更新凭证，再标记账户为 error
+		// 特殊处理 project_id：如果新值为空但旧值非空，保留旧值
+		// 这确保了即使 LoadCodeAssist 失败，project_id 也不会丢失
+		if newProjectID, _ := newCredentials["project_id"].(string); newProjectID == "" {
+			if oldProjectID := strings.TrimSpace(account.GetCredential("project_id")); oldProjectID != "" {
+				newCredentials["project_id"] = oldProjectID
+			}
+		}
+
+		// 如果 project_id 获取失败，更新凭证但不标记为 error
+		// LoadCodeAssist 失败可能是临时网络问题，给它机会在下次自动刷新时重试
 		if tokenInfo.ProjectIDMissing {
-			// 先更新凭证
+			// 先更新凭证（token 本身刷新成功了）
 			_, updateErr := h.adminService.UpdateAccount(c.Request.Context(), accountID, &service.UpdateAccountInput{
 				Credentials: newCredentials,
 			})
@@ -557,14 +566,10 @@ func (h *AccountHandler) Refresh(c *gin.Context) {
 				response.InternalError(c, "Failed to update credentials: "+updateErr.Error())
 				return
 			}
-			// 标记账户为 error
-			if setErr := h.adminService.SetAccountError(c.Request.Context(), accountID, "missing_project_id: 账户缺少project id，可能无法使用Antigravity"); setErr != nil {
-				response.InternalError(c, "Failed to set account error: "+setErr.Error())
-				return
-			}
+			// 不标记为 error，只返回警告信息
 			response.Success(c, gin.H{
-				"message": "Token refreshed but project_id is missing, account marked as error",
-				"warning": "missing_project_id",
+				"message": "Token refreshed successfully, but project_id could not be retrieved (will retry automatically)",
+				"warning": "missing_project_id_temporary",
 			})
 			return
 		}

backend/internal/handler/admin/setting_handler.go

@@ -48,6 +48,9 @@ func (h *SettingHandler) GetSettings(c *gin.Context) {
 		RegistrationEnabled:                  settings.RegistrationEnabled,
 		EmailVerifyEnabled:                   settings.EmailVerifyEnabled,
 		PromoCodeEnabled:                     settings.PromoCodeEnabled,
+		PasswordResetEnabled:                 settings.PasswordResetEnabled,
+		TotpEnabled:                          settings.TotpEnabled,
+		TotpEncryptionKeyConfigured:          h.settingService.IsTotpEncryptionKeyConfigured(),
 		SMTPHost:                             settings.SMTPHost,
 		SMTPPort:                             settings.SMTPPort,
 		SMTPUsername:                         settings.SMTPUsername,
@@ -70,6 +73,8 @@ func (h *SettingHandler) GetSettings(c *gin.Context) {
 		DocURL:                               settings.DocURL,
 		HomeContent:                          settings.HomeContent,
 		HideCcsImportButton:                  settings.HideCcsImportButton,
+		PurchaseSubscriptionEnabled:          settings.PurchaseSubscriptionEnabled,
+		PurchaseSubscriptionURL:              settings.PurchaseSubscriptionURL,
 		DefaultConcurrency:                   settings.DefaultConcurrency,
 		DefaultBalance:                       settings.DefaultBalance,
 		EnableModelFallback:                  settings.EnableModelFallback,
@@ -89,9 +94,11 @@ func (h *SettingHandler) GetSettings(c *gin.Context) {
 // UpdateSettingsRequest 更新设置请求
 type UpdateSettingsRequest struct {
 	// 注册设置
-	RegistrationEnabled bool `json:"registration_enabled"`
-	EmailVerifyEnabled  bool `json:"email_verify_enabled"`
-	PromoCodeEnabled    bool `json:"promo_code_enabled"`
+	RegistrationEnabled  bool `json:"registration_enabled"`
+	EmailVerifyEnabled   bool `json:"email_verify_enabled"`
+	PromoCodeEnabled     bool `json:"promo_code_enabled"`
+	PasswordResetEnabled bool `json:"password_reset_enabled"`
+	TotpEnabled          bool `json:"totp_enabled"` // TOTP 双因素认证
 
 	// 邮件服务设置
 	SMTPHost     string `json:"smtp_host"`
@@ -114,14 +121,16 @@ type UpdateSettingsRequest struct {
 	LinuxDoConnectRedirectURL  string `json:"linuxdo_connect_redirect_url"`
 
 	// OEM设置
-	SiteName            string `json:"site_name"`
-	SiteLogo            string `json:"site_logo"`
-	SiteSubtitle        string `json:"site_subtitle"`
-	APIBaseURL          string `json:"api_base_url"`
-	ContactInfo         string `json:"contact_info"`
-	DocURL              string `json:"doc_url"`
-	HomeContent         string `json:"home_content"`
-	HideCcsImportButton bool   `json:"hide_ccs_import_button"`
+	SiteName                    string  `json:"site_name"`
+	SiteLogo                    string  `json:"site_logo"`
+	SiteSubtitle                string  `json:"site_subtitle"`
+	APIBaseURL                  string  `json:"api_base_url"`
+	ContactInfo                 string  `json:"contact_info"`
+	DocURL                      string  `json:"doc_url"`
+	HomeContent                 string  `json:"home_content"`
+	HideCcsImportButton         bool    `json:"hide_ccs_import_button"`
+	PurchaseSubscriptionEnabled *bool   `json:"purchase_subscription_enabled"`
+	PurchaseSubscriptionURL     *string `json:"purchase_subscription_url"`
 
 	// 默认配置
 	DefaultConcurrency int     `json:"default_concurrency"`
@@ -198,6 +207,16 @@ func (h *SettingHandler) UpdateSettings(c *gin.Context) {
 		}
 	}
 
+	// TOTP 双因素认证参数验证
+	// 只有手动配置了加密密钥才允许启用 TOTP 功能
+	if req.TotpEnabled && !previousSettings.TotpEnabled {
+		// 尝试启用 TOTP，检查加密密钥是否已手动配置
+		if !h.settingService.IsTotpEncryptionKeyConfigured() {
+			response.BadRequest(c, "Cannot enable TOTP: TOTP_ENCRYPTION_KEY environment variable must be configured first. Generate a key with 'openssl rand -hex 32' and set it in your environment.")
+			return
+		}
+	}
+
 	// LinuxDo Connect 参数验证
 	if req.LinuxDoConnectEnabled {
 		req.LinuxDoConnectClientID = strings.TrimSpace(req.LinuxDoConnectClientID)
@@ -227,6 +246,34 @@ func (h *SettingHandler) UpdateSettings(c *gin.Context) {
 		}
 	}
 
+	// “购买订阅”页面配置验证
+	purchaseEnabled := previousSettings.PurchaseSubscriptionEnabled
+	if req.PurchaseSubscriptionEnabled != nil {
+		purchaseEnabled = *req.PurchaseSubscriptionEnabled
+	}
+	purchaseURL := previousSettings.PurchaseSubscriptionURL
+	if req.PurchaseSubscriptionURL != nil {
+		purchaseURL = strings.TrimSpace(*req.PurchaseSubscriptionURL)
+	}
+
+	// - 启用时要求 URL 合法且非空
+	// - 禁用时允许为空；若提供了 URL 也做基本校验，避免误配置
+	if purchaseEnabled {
+		if purchaseURL == "" {
+			response.BadRequest(c, "Purchase Subscription URL is required when enabled")
+			return
+		}
+		if err := config.ValidateAbsoluteHTTPURL(purchaseURL); err != nil {
+			response.BadRequest(c, "Purchase Subscription URL must be an absolute http(s) URL")
+			return
+		}
+	} else if purchaseURL != "" {
+		if err := config.ValidateAbsoluteHTTPURL(purchaseURL); err != nil {
+			response.BadRequest(c, "Purchase Subscription URL must be an absolute http(s) URL")
+			return
+		}
+	}
+
 	// Ops metrics collector interval validation (seconds).
 	if req.OpsMetricsIntervalSeconds != nil {
 		v := *req.OpsMetricsIntervalSeconds
@@ -240,40 +287,44 @@ func (h *SettingHandler) UpdateSettings(c *gin.Context) {
 	}
 
 	settings := &service.SystemSettings{
-		RegistrationEnabled:        req.RegistrationEnabled,
-		EmailVerifyEnabled:         req.EmailVerifyEnabled,
-		PromoCodeEnabled:           req.PromoCodeEnabled,
-		SMTPHost:                   req.SMTPHost,
-		SMTPPort:                   req.SMTPPort,
-		SMTPUsername:               req.SMTPUsername,
-		SMTPPassword:               req.SMTPPassword,
-		SMTPFrom:                   req.SMTPFrom,
-		SMTPFromName:               req.SMTPFromName,
-		SMTPUseTLS:                 req.SMTPUseTLS,
-		TurnstileEnabled:           req.TurnstileEnabled,
-		TurnstileSiteKey:           req.TurnstileSiteKey,
-		TurnstileSecretKey:         req.TurnstileSecretKey,
-		LinuxDoConnectEnabled:      req.LinuxDoConnectEnabled,
-		LinuxDoConnectClientID:     req.LinuxDoConnectClientID,
-		LinuxDoConnectClientSecret: req.LinuxDoConnectClientSecret,
-		LinuxDoConnectRedirectURL:  req.LinuxDoConnectRedirectURL,
-		SiteName:                   req.SiteName,
-		SiteLogo:                   req.SiteLogo,
-		SiteSubtitle:               req.SiteSubtitle,
-		APIBaseURL:                 req.APIBaseURL,
-		ContactInfo:                req.ContactInfo,
-		DocURL:                     req.DocURL,
-		HomeContent:                req.HomeContent,
-		HideCcsImportButton:        req.HideCcsImportButton,
-		DefaultConcurrency:         req.DefaultConcurrency,
-		DefaultBalance:             req.DefaultBalance,
-		EnableModelFallback:        req.EnableModelFallback,
-		FallbackModelAnthropic:     req.FallbackModelAnthropic,
-		FallbackModelOpenAI:        req.FallbackModelOpenAI,
-		FallbackModelGemini:        req.FallbackModelGemini,
-		FallbackModelAntigravity:   req.FallbackModelAntigravity,
-		EnableIdentityPatch:        req.EnableIdentityPatch,
-		IdentityPatchPrompt:        req.IdentityPatchPrompt,
+		RegistrationEnabled:         req.RegistrationEnabled,
+		EmailVerifyEnabled:          req.EmailVerifyEnabled,
+		PromoCodeEnabled:            req.PromoCodeEnabled,
+		PasswordResetEnabled:        req.PasswordResetEnabled,
+		TotpEnabled:                 req.TotpEnabled,
+		SMTPHost:                    req.SMTPHost,
+		SMTPPort:                    req.SMTPPort,
+		SMTPUsername:                req.SMTPUsername,
+		SMTPPassword:                req.SMTPPassword,
+		SMTPFrom:                    req.SMTPFrom,
+		SMTPFromName:                req.SMTPFromName,
+		SMTPUseTLS:                  req.SMTPUseTLS,
+		TurnstileEnabled:            req.TurnstileEnabled,
+		TurnstileSiteKey:            req.TurnstileSiteKey,
+		TurnstileSecretKey:          req.TurnstileSecretKey,
+		LinuxDoConnectEnabled:       req.LinuxDoConnectEnabled,
+		LinuxDoConnectClientID:      req.LinuxDoConnectClientID,
+		LinuxDoConnectClientSecret:  req.LinuxDoConnectClientSecret,
+		LinuxDoConnectRedirectURL:   req.LinuxDoConnectRedirectURL,
+		SiteName:                    req.SiteName,
+		SiteLogo:                    req.SiteLogo,
+		SiteSubtitle:                req.SiteSubtitle,
+		APIBaseURL:                  req.APIBaseURL,
+		ContactInfo:                 req.ContactInfo,
+		DocURL:                      req.DocURL,
+		HomeContent:                 req.HomeContent,
+		HideCcsImportButton:         req.HideCcsImportButton,
+		PurchaseSubscriptionEnabled: purchaseEnabled,
+		PurchaseSubscriptionURL:     purchaseURL,
+		DefaultConcurrency:          req.DefaultConcurrency,
+		DefaultBalance:              req.DefaultBalance,
+		EnableModelFallback:         req.EnableModelFallback,
+		FallbackModelAnthropic:      req.FallbackModelAnthropic,
+		FallbackModelOpenAI:         req.FallbackModelOpenAI,
+		FallbackModelGemini:         req.FallbackModelGemini,
+		FallbackModelAntigravity:    req.FallbackModelAntigravity,
+		EnableIdentityPatch:         req.EnableIdentityPatch,
+		IdentityPatchPrompt:         req.IdentityPatchPrompt,
 		OpsMonitoringEnabled: func() bool {
 			if req.OpsMonitoringEnabled != nil {
 				return *req.OpsMonitoringEnabled
@@ -318,6 +369,9 @@ func (h *SettingHandler) UpdateSettings(c *gin.Context) {
 		RegistrationEnabled:                  updatedSettings.RegistrationEnabled,
 		EmailVerifyEnabled:                   updatedSettings.EmailVerifyEnabled,
 		PromoCodeEnabled:                     updatedSettings.PromoCodeEnabled,
+		PasswordResetEnabled:                 updatedSettings.PasswordResetEnabled,
+		TotpEnabled:                          updatedSettings.TotpEnabled,
+		TotpEncryptionKeyConfigured:          h.settingService.IsTotpEncryptionKeyConfigured(),
 		SMTPHost:                             updatedSettings.SMTPHost,
 		SMTPPort:                             updatedSettings.SMTPPort,
 		SMTPUsername:                         updatedSettings.SMTPUsername,
@@ -340,6 +394,8 @@ func (h *SettingHandler) UpdateSettings(c *gin.Context) {
 		DocURL:                               updatedSettings.DocURL,
 		HomeContent:                          updatedSettings.HomeContent,
 		HideCcsImportButton:                  updatedSettings.HideCcsImportButton,
+		PurchaseSubscriptionEnabled:          updatedSettings.PurchaseSubscriptionEnabled,
+		PurchaseSubscriptionURL:              updatedSettings.PurchaseSubscriptionURL,
 		DefaultConcurrency:                   updatedSettings.DefaultConcurrency,
 		DefaultBalance:                       updatedSettings.DefaultBalance,
 		EnableModelFallback:                  updatedSettings.EnableModelFallback,
@@ -384,6 +440,12 @@ func diffSettings(before *service.SystemSettings, after *service.SystemSettings,
 	if before.EmailVerifyEnabled != after.EmailVerifyEnabled {
 		changed = append(changed, "email_verify_enabled")
 	}
+	if before.PasswordResetEnabled != after.PasswordResetEnabled {
+		changed = append(changed, "password_reset_enabled")
+	}
+	if before.TotpEnabled != after.TotpEnabled {
+		changed = append(changed, "totp_enabled")
+	}
 	if before.SMTPHost != after.SMTPHost {
 		changed = append(changed, "smtp_host")
 	}

backend/internal/handler/admin/subscription_handler.go

@@ -77,7 +77,11 @@ func (h *SubscriptionHandler) List(c *gin.Context) {
 	}
 	status := c.Query("status")
 
-	subscriptions, pagination, err := h.subscriptionService.List(c.Request.Context(), page, pageSize, userID, groupID, status)
+	// Parse sorting parameters
+	sortBy := c.DefaultQuery("sort_by", "created_at")
+	sortOrder := c.DefaultQuery("sort_order", "desc")
+
+	subscriptions, pagination, err := h.subscriptionService.List(c.Request.Context(), page, pageSize, userID, groupID, status, sortBy, sortOrder)
 	if err != nil {
 		response.ErrorFrom(c, err)
 		return

backend/internal/handler/auth_handler.go

@@ -1,6 +1,8 @@
 package handler
 
 import (
+	"log/slog"
+
 	"github.com/Wei-Shaw/sub2api/internal/config"
 	"github.com/Wei-Shaw/sub2api/internal/handler/dto"
 	"github.com/Wei-Shaw/sub2api/internal/pkg/ip"
@@ -18,16 +20,18 @@ type AuthHandler struct {
 	userService  *service.UserService
 	settingSvc   *service.SettingService
 	promoService *service.PromoService
+	totpService  *service.TotpService
 }
 
 // NewAuthHandler creates a new AuthHandler
-func NewAuthHandler(cfg *config.Config, authService *service.AuthService, userService *service.UserService, settingService *service.SettingService, promoService *service.PromoService) *AuthHandler {
+func NewAuthHandler(cfg *config.Config, authService *service.AuthService, userService *service.UserService, settingService *service.SettingService, promoService *service.PromoService, totpService *service.TotpService) *AuthHandler {
 	return &AuthHandler{
 		cfg:          cfg,
 		authService:  authService,
 		userService:  userService,
 		settingSvc:   settingService,
 		promoService: promoService,
+		totpService:  totpService,
 	}
 }
 
@@ -144,6 +148,100 @@ func (h *AuthHandler) Login(c *gin.Context) {
 		return
 	}
 
+	// Check if TOTP 2FA is enabled for this user
+	if h.totpService != nil && h.settingSvc.IsTotpEnabled(c.Request.Context()) && user.TotpEnabled {
+		// Create a temporary login session for 2FA
+		tempToken, err := h.totpService.CreateLoginSession(c.Request.Context(), user.ID, user.Email)
+		if err != nil {
+			response.InternalError(c, "Failed to create 2FA session")
+			return
+		}
+
+		response.Success(c, TotpLoginResponse{
+			Requires2FA:     true,
+			TempToken:       tempToken,
+			UserEmailMasked: service.MaskEmail(user.Email),
+		})
+		return
+	}
+
+	response.Success(c, AuthResponse{
+		AccessToken: token,
+		TokenType:   "Bearer",
+		User:        dto.UserFromService(user),
+	})
+}
+
+// TotpLoginResponse represents the response when 2FA is required
+type TotpLoginResponse struct {
+	Requires2FA     bool   `json:"requires_2fa"`
+	TempToken       string `json:"temp_token,omitempty"`
+	UserEmailMasked string `json:"user_email_masked,omitempty"`
+}
+
+// Login2FARequest represents the 2FA login request
+type Login2FARequest struct {
+	TempToken string `json:"temp_token" binding:"required"`
+	TotpCode  string `json:"totp_code" binding:"required,len=6"`
+}
+
+// Login2FA completes the login with 2FA verification
+// POST /api/v1/auth/login/2fa
+func (h *AuthHandler) Login2FA(c *gin.Context) {
+	var req Login2FARequest
+	if err := c.ShouldBindJSON(&req); err != nil {
+		response.BadRequest(c, "Invalid request: "+err.Error())
+		return
+	}
+
+	slog.Debug("login_2fa_request",
+		"temp_token_len", len(req.TempToken),
+		"totp_code_len", len(req.TotpCode))
+
+	// Get the login session
+	session, err := h.totpService.GetLoginSession(c.Request.Context(), req.TempToken)
+	if err != nil || session == nil {
+		tokenPrefix := ""
+		if len(req.TempToken) >= 8 {
+			tokenPrefix = req.TempToken[:8]
+		}
+		slog.Debug("login_2fa_session_invalid",
+			"temp_token_prefix", tokenPrefix,
+			"error", err)
+		response.BadRequest(c, "Invalid or expired 2FA session")
+		return
+	}
+
+	slog.Debug("login_2fa_session_found",
+		"user_id", session.UserID,
+		"email", session.Email)
+
+	// Verify the TOTP code
+	if err := h.totpService.VerifyCode(c.Request.Context(), session.UserID, req.TotpCode); err != nil {
+		slog.Debug("login_2fa_verify_failed",
+			"user_id", session.UserID,
+			"error", err)
+		response.ErrorFrom(c, err)
+		return
+	}
+
+	// Delete the login session
+	_ = h.totpService.DeleteLoginSession(c.Request.Context(), req.TempToken)
+
+	// Get the user
+	user, err := h.userService.GetByID(c.Request.Context(), session.UserID)
+	if err != nil {
+		response.ErrorFrom(c, err)
+		return
+	}
+
+	// Generate the JWT token
+	token, err := h.authService.GenerateToken(user)
+	if err != nil {
+		response.InternalError(c, "Failed to generate token")
+		return
+	}
+
 	response.Success(c, AuthResponse{
 		AccessToken: token,
 		TokenType:   "Bearer",
@@ -247,3 +345,85 @@ func (h *AuthHandler) ValidatePromoCode(c *gin.Context) {
 		BonusAmount: promoCode.BonusAmount,
 	})
 }
+
+// ForgotPasswordRequest 忘记密码请求
+type ForgotPasswordRequest struct {
+	Email          string `json:"email" binding:"required,email"`
+	TurnstileToken string `json:"turnstile_token"`
+}
+
+// ForgotPasswordResponse 忘记密码响应
+type ForgotPasswordResponse struct {
+	Message string `json:"message"`
+}
+
+// ForgotPassword 请求密码重置
+// POST /api/v1/auth/forgot-password
+func (h *AuthHandler) ForgotPassword(c *gin.Context) {
+	var req ForgotPasswordRequest
+	if err := c.ShouldBindJSON(&req); err != nil {
+		response.BadRequest(c, "Invalid request: "+err.Error())
+		return
+	}
+
+	// Turnstile 验证
+	if err := h.authService.VerifyTurnstile(c.Request.Context(), req.TurnstileToken, ip.GetClientIP(c)); err != nil {
+		response.ErrorFrom(c, err)
+		return
+	}
+
+	// Build frontend base URL from request
+	scheme := "https"
+	if c.Request.TLS == nil {
+		// Check X-Forwarded-Proto header (common in reverse proxy setups)
+		if proto := c.GetHeader("X-Forwarded-Proto"); proto != "" {
+			scheme = proto
+		} else {
+			scheme = "http"
+		}
+	}
+	frontendBaseURL := scheme + "://" + c.Request.Host
+
+	// Request password reset (async)
+	// Note: This returns success even if email doesn't exist (to prevent enumeration)
+	if err := h.authService.RequestPasswordResetAsync(c.Request.Context(), req.Email, frontendBaseURL); err != nil {
+		response.ErrorFrom(c, err)
+		return
+	}
+
+	response.Success(c, ForgotPasswordResponse{
+		Message: "If your email is registered, you will receive a password reset link shortly.",
+	})
+}
+
+// ResetPasswordRequest 重置密码请求
+type ResetPasswordRequest struct {
+	Email       string `json:"email" binding:"required,email"`
+	Token       string `json:"token" binding:"required"`
+	NewPassword string `json:"new_password" binding:"required,min=6"`
+}
+
+// ResetPasswordResponse 重置密码响应
+type ResetPasswordResponse struct {
+	Message string `json:"message"`
+}
+
+// ResetPassword 重置密码
+// POST /api/v1/auth/reset-password
+func (h *AuthHandler) ResetPassword(c *gin.Context) {
+	var req ResetPasswordRequest
+	if err := c.ShouldBindJSON(&req); err != nil {
+		response.BadRequest(c, "Invalid request: "+err.Error())
+		return
+	}
+
+	// Reset password
+	if err := h.authService.ResetPassword(c.Request.Context(), req.Email, req.Token, req.NewPassword); err != nil {
+		response.ErrorFrom(c, err)
+		return
+	}
+
+	response.Success(c, ResetPasswordResponse{
+		Message: "Your password has been reset successfully. You can now log in with your new password.",
+	})
+}

backend/internal/handler/dto/settings.go

@@ -2,9 +2,12 @@ package dto
 
 // SystemSettings represents the admin settings API response payload.
 type SystemSettings struct {
-	RegistrationEnabled bool `json:"registration_enabled"`
-	EmailVerifyEnabled  bool `json:"email_verify_enabled"`
-	PromoCodeEnabled    bool `json:"promo_code_enabled"`
+	RegistrationEnabled         bool `json:"registration_enabled"`
+	EmailVerifyEnabled          bool `json:"email_verify_enabled"`
+	PromoCodeEnabled            bool `json:"promo_code_enabled"`
+	PasswordResetEnabled        bool `json:"password_reset_enabled"`
+	TotpEnabled                 bool `json:"totp_enabled"`                   // TOTP 双因素认证
+	TotpEncryptionKeyConfigured bool `json:"totp_encryption_key_configured"` // TOTP 加密密钥是否已配置
 
 	SMTPHost               string `json:"smtp_host"`
 	SMTPPort               int    `json:"smtp_port"`
@@ -23,14 +26,16 @@ type SystemSettings struct {
 	LinuxDoConnectClientSecretConfigured bool   `json:"linuxdo_connect_client_secret_configured"`
 	LinuxDoConnectRedirectURL            string `json:"linuxdo_connect_redirect_url"`
 
-	SiteName            string `json:"site_name"`
-	SiteLogo            string `json:"site_logo"`
-	SiteSubtitle        string `json:"site_subtitle"`
-	APIBaseURL          string `json:"api_base_url"`
-	ContactInfo         string `json:"contact_info"`
-	DocURL              string `json:"doc_url"`
-	HomeContent         string `json:"home_content"`
-	HideCcsImportButton bool   `json:"hide_ccs_import_button"`
+	SiteName                    string `json:"site_name"`
+	SiteLogo                    string `json:"site_logo"`
+	SiteSubtitle                string `json:"site_subtitle"`
+	APIBaseURL                  string `json:"api_base_url"`
+	ContactInfo                 string `json:"contact_info"`
+	DocURL                      string `json:"doc_url"`
+	HomeContent                 string `json:"home_content"`
+	HideCcsImportButton         bool   `json:"hide_ccs_import_button"`
+	PurchaseSubscriptionEnabled bool   `json:"purchase_subscription_enabled"`
+	PurchaseSubscriptionURL     string `json:"purchase_subscription_url"`
 
 	DefaultConcurrency int     `json:"default_concurrency"`
 	DefaultBalance     float64 `json:"default_balance"`
@@ -54,21 +59,25 @@ type SystemSettings struct {
 }
 
 type PublicSettings struct {
-	RegistrationEnabled bool   `json:"registration_enabled"`
-	EmailVerifyEnabled  bool   `json:"email_verify_enabled"`
-	PromoCodeEnabled    bool   `json:"promo_code_enabled"`
-	TurnstileEnabled    bool   `json:"turnstile_enabled"`
-	TurnstileSiteKey    string `json:"turnstile_site_key"`
-	SiteName            string `json:"site_name"`
-	SiteLogo            string `json:"site_logo"`
-	SiteSubtitle        string `json:"site_subtitle"`
-	APIBaseURL          string `json:"api_base_url"`
-	ContactInfo         string `json:"contact_info"`
-	DocURL              string `json:"doc_url"`
-	HomeContent         string `json:"home_content"`
-	HideCcsImportButton bool   `json:"hide_ccs_import_button"`
-	LinuxDoOAuthEnabled bool   `json:"linuxdo_oauth_enabled"`
-	Version             string `json:"version"`
+	RegistrationEnabled         bool   `json:"registration_enabled"`
+	EmailVerifyEnabled          bool   `json:"email_verify_enabled"`
+	PromoCodeEnabled            bool   `json:"promo_code_enabled"`
+	PasswordResetEnabled        bool   `json:"password_reset_enabled"`
+	TotpEnabled                 bool   `json:"totp_enabled"` // TOTP 双因素认证
+	TurnstileEnabled            bool   `json:"turnstile_enabled"`
+	TurnstileSiteKey            string `json:"turnstile_site_key"`
+	SiteName                    string `json:"site_name"`
+	SiteLogo                    string `json:"site_logo"`
+	SiteSubtitle                string `json:"site_subtitle"`
+	APIBaseURL                  string `json:"api_base_url"`
+	ContactInfo                 string `json:"contact_info"`
+	DocURL                      string `json:"doc_url"`
+	HomeContent                 string `json:"home_content"`
+	HideCcsImportButton         bool   `json:"hide_ccs_import_button"`
+	PurchaseSubscriptionEnabled bool   `json:"purchase_subscription_enabled"`
+	PurchaseSubscriptionURL     string `json:"purchase_subscription_url"`
+	LinuxDoOAuthEnabled         bool   `json:"linuxdo_oauth_enabled"`
+	Version                     string `json:"version"`
 }
 
 // StreamTimeoutSettings 流超时处理配置 DTO

backend/internal/handler/gemini_cli_session_test.go

@@ -0,0 +1,122 @@
+//go:build unit
+
+package handler
+
+import (
+	"crypto/sha256"
+	"encoding/hex"
+	"net/http/httptest"
+	"testing"
+
+	"github.com/gin-gonic/gin"
+	"github.com/stretchr/testify/require"
+)
+
+func TestExtractGeminiCLISessionHash(t *testing.T) {
+	tests := []struct {
+		name             string
+		body             string
+		privilegedUserID string
+		wantEmpty        bool
+		wantHash         string
+	}{
+		{
+			name:             "with privileged-user-id and tmp dir",
+			body:             `{"contents":[{"parts":[{"text":"The project's temporary directory is: /Users/ianshaw/.gemini/tmp/f7851b009ed314d1baee62e83115f486160283f4a55a582d89fdac8b9fe3b740"}]}]}`,
+			privilegedUserID: "90785f52-8bbe-4b17-b111-a1ddea1636c3",
+			wantEmpty:        false,
+			wantHash: func() string {
+				combined := "90785f52-8bbe-4b17-b111-a1ddea1636c3:f7851b009ed314d1baee62e83115f486160283f4a55a582d89fdac8b9fe3b740"
+				hash := sha256.Sum256([]byte(combined))
+				return hex.EncodeToString(hash[:])
+			}(),
+		},
+		{
+			name:             "without privileged-user-id but with tmp dir",
+			body:             `{"contents":[{"parts":[{"text":"The project's temporary directory is: /Users/ianshaw/.gemini/tmp/f7851b009ed314d1baee62e83115f486160283f4a55a582d89fdac8b9fe3b740"}]}]}`,
+			privilegedUserID: "",
+			wantEmpty:        false,
+			wantHash:         "f7851b009ed314d1baee62e83115f486160283f4a55a582d89fdac8b9fe3b740",
+		},
+		{
+			name:             "without tmp dir",
+			body:             `{"contents":[{"parts":[{"text":"Hello world"}]}]}`,
+			privilegedUserID: "90785f52-8bbe-4b17-b111-a1ddea1636c3",
+			wantEmpty:        true,
+		},
+		{
+			name:             "empty body",
+			body:             "",
+			privilegedUserID: "90785f52-8bbe-4b17-b111-a1ddea1636c3",
+			wantEmpty:        true,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			// 创建测试上下文
+			w := httptest.NewRecorder()
+			c, _ := gin.CreateTestContext(w)
+			c.Request = httptest.NewRequest("POST", "/test", nil)
+			if tt.privilegedUserID != "" {
+				c.Request.Header.Set("x-gemini-api-privileged-user-id", tt.privilegedUserID)
+			}
+
+			// 调用函数
+			result := extractGeminiCLISessionHash(c, []byte(tt.body))
+
+			// 验证结果
+			if tt.wantEmpty {
+				require.Empty(t, result, "expected empty session hash")
+			} else {
+				require.NotEmpty(t, result, "expected non-empty session hash")
+				require.Equal(t, tt.wantHash, result, "session hash mismatch")
+			}
+		})
+	}
+}
+
+func TestGeminiCLITmpDirRegex(t *testing.T) {
+	tests := []struct {
+		name      string
+		input     string
+		wantMatch bool
+		wantHash  string
+	}{
+		{
+			name:      "valid tmp dir path",
+			input:     "/Users/ianshaw/.gemini/tmp/f7851b009ed314d1baee62e83115f486160283f4a55a582d89fdac8b9fe3b740",
+			wantMatch: true,
+			wantHash:  "f7851b009ed314d1baee62e83115f486160283f4a55a582d89fdac8b9fe3b740",
+		},
+		{
+			name:      "valid tmp dir path in text",
+			input:     "The project's temporary directory is: /Users/ianshaw/.gemini/tmp/f7851b009ed314d1baee62e83115f486160283f4a55a582d89fdac8b9fe3b740\nOther text",
+			wantMatch: true,
+			wantHash:  "f7851b009ed314d1baee62e83115f486160283f4a55a582d89fdac8b9fe3b740",
+		},
+		{
+			name:      "invalid hash length",
+			input:     "/Users/ianshaw/.gemini/tmp/abc123",
+			wantMatch: false,
+		},
+		{
+			name:      "no tmp dir",
+			input:     "Hello world",
+			wantMatch: false,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			match := geminiCLITmpDirRegex.FindStringSubmatch(tt.input)
+			if tt.wantMatch {
+				require.NotNil(t, match, "expected regex to match")
+				require.Len(t, match, 2, "expected 2 capture groups")
+				require.Equal(t, tt.wantHash, match[1], "hash mismatch")
+			} else {
+				require.Nil(t, match, "expected regex not to match")
+			}
+		})
+	}
+}

backend/internal/handler/gemini_v1beta_handler.go

@@ -1,11 +1,15 @@
 package handler
 
 import (
+	"bytes"
 	"context"
+	"crypto/sha256"
+	"encoding/hex"
 	"errors"
 	"io"
 	"log"
 	"net/http"
+	"regexp"
 	"strings"
 	"time"
 
@@ -19,6 +23,17 @@ import (
 	"github.com/gin-gonic/gin"
 )
 
+// geminiCLITmpDirRegex 用于从 Gemini CLI 请求体中提取 tmp 目录的哈希值
+// 匹配格式: /Users/xxx/.gemini/tmp/[64位十六进制哈希]
+var geminiCLITmpDirRegex = regexp.MustCompile(`/\.gemini/tmp/([A-Fa-f0-9]{64})`)
+
+func isGeminiCLIRequest(c *gin.Context, body []byte) bool {
+	if strings.TrimSpace(c.GetHeader("x-gemini-api-privileged-user-id")) != "" {
+		return true
+	}
+	return geminiCLITmpDirRegex.Match(body)
+}
+
 // GeminiV1BetaListModels proxies:
 // GET /v1beta/models
 func (h *GatewayHandler) GeminiV1BetaListModels(c *gin.Context) {
@@ -214,12 +229,26 @@ func (h *GatewayHandler) GeminiV1BetaModels(c *gin.Context) {
 	}
 
 	// 3) select account (sticky session based on request body)
-	parsedReq, _ := service.ParseGatewayRequest(body)
-	sessionHash := h.gatewayService.GenerateSessionHash(parsedReq)
+	// 优先使用 Gemini CLI 的会话标识（privileged-user-id + tmp 目录哈希）
+	sessionHash := extractGeminiCLISessionHash(c, body)
+	if sessionHash == "" {
+		// Fallback: 使用通用的会话哈希生成逻辑（适用于其他客户端）
+		parsedReq, _ := service.ParseGatewayRequest(body)
+		sessionHash = h.gatewayService.GenerateSessionHash(parsedReq)
+	}
 	sessionKey := sessionHash
 	if sessionHash != "" {
 		sessionKey = "gemini:" + sessionHash
 	}
+
+	// 查询粘性会话绑定的账号 ID（用于检测账号切换）
+	var sessionBoundAccountID int64
+	if sessionKey != "" {
+		sessionBoundAccountID, _ = h.gatewayService.GetCachedSessionAccountID(c.Request.Context(), apiKey.GroupID, sessionKey)
+	}
+	isCLI := isGeminiCLIRequest(c, body)
+	cleanedForUnknownBinding := false
+
 	maxAccountSwitches := h.maxAccountSwitchesGemini
 	switchCount := 0
 	failedAccountIDs := make(map[int64]struct{})
@@ -238,6 +267,24 @@ func (h *GatewayHandler) GeminiV1BetaModels(c *gin.Context) {
 		account := selection.Account
 		setOpsSelectedAccount(c, account.ID)
 
+		// 检测账号切换：如果粘性会话绑定的账号与当前选择的账号不同，清除 thoughtSignature
+		// 注意：Gemini 原生 API 的 thoughtSignature 与具体上游账号强相关；跨账号透传会导致 400。
+		if sessionBoundAccountID > 0 && sessionBoundAccountID != account.ID {
+			log.Printf("[Gemini] Sticky session account switched: %d -> %d, cleaning thoughtSignature", sessionBoundAccountID, account.ID)
+			body = service.CleanGeminiNativeThoughtSignatures(body)
+			sessionBoundAccountID = account.ID
+		} else if sessionKey != "" && sessionBoundAccountID == 0 && isCLI && !cleanedForUnknownBinding && bytes.Contains(body, []byte(`"thoughtSignature"`)) {
+			// 无缓存绑定但请求里已有 thoughtSignature：常见于缓存丢失/TTL 过期后，CLI 继续携带旧签名。
+			// 为避免第一次转发就 400，这里做一次确定性清理，让新账号重新生成签名链路。
+			log.Printf("[Gemini] Sticky session binding missing for CLI request, cleaning thoughtSignature proactively")
+			body = service.CleanGeminiNativeThoughtSignatures(body)
+			cleanedForUnknownBinding = true
+			sessionBoundAccountID = account.ID
+		} else if sessionBoundAccountID == 0 {
+			// 记录本次请求中首次选择到的账号，便于同一请求内 failover 时检测切换。
+			sessionBoundAccountID = account.ID
+		}
+
 		// 4) account concurrency slot
 		accountReleaseFunc := selection.ReleaseFunc
 		if !selection.Acquired {
@@ -433,3 +480,38 @@ func shouldFallbackGeminiModels(res *service.UpstreamHTTPResult) bool {
 	}
 	return false
 }
+
+// extractGeminiCLISessionHash 从 Gemini CLI 请求中提取会话标识。
+// 组合 x-gemini-api-privileged-user-id header 和请求体中的 tmp 目录哈希。
+//
+// 会话标识生成策略：
+//  1. 从请求体中提取 tmp 目录哈希（64位十六进制）
+//  2. 从 header 中提取 privileged-user-id（UUID）
+//  3. 组合两者生成 SHA256 哈希作为最终的会话标识
+//
+// 如果找不到 tmp 目录哈希，返回空字符串（不使用粘性会话）。
+//
+// extractGeminiCLISessionHash extracts session identifier from Gemini CLI requests.
+// Combines x-gemini-api-privileged-user-id header with tmp directory hash from request body.
+func extractGeminiCLISessionHash(c *gin.Context, body []byte) string {
+	// 1. 从请求体中提取 tmp 目录哈希
+	match := geminiCLITmpDirRegex.FindSubmatch(body)
+	if len(match) < 2 {
+		return "" // 没有找到 tmp 目录，不使用粘性会话
+	}
+	tmpDirHash := string(match[1])
+
+	// 2. 提取 privileged-user-id
+	privilegedUserID := strings.TrimSpace(c.GetHeader("x-gemini-api-privileged-user-id"))
+
+	// 3. 组合生成最终的 session hash
+	if privilegedUserID != "" {
+		// 组合两个标识符：privileged-user-id + tmp 目录哈希
+		combined := privilegedUserID + ":" + tmpDirHash
+		hash := sha256.Sum256([]byte(combined))
+		return hex.EncodeToString(hash[:])
+	}
+
+	// 如果没有 privileged-user-id，直接使用 tmp 目录哈希
+	return tmpDirHash
+}

backend/internal/handler/handler.go

@@ -37,6 +37,7 @@ type Handlers struct {
 	Gateway       *GatewayHandler
 	OpenAIGateway *OpenAIGatewayHandler
 	Setting       *SettingHandler
+	Totp          *TotpHandler
 }
 
 // BuildInfo contains build-time information

backend/internal/handler/setting_handler.go

@@ -32,20 +32,24 @@ func (h *SettingHandler) GetPublicSettings(c *gin.Context) {
 	}
 
 	response.Success(c, dto.PublicSettings{
-		RegistrationEnabled: settings.RegistrationEnabled,
-		EmailVerifyEnabled:  settings.EmailVerifyEnabled,
-		PromoCodeEnabled:    settings.PromoCodeEnabled,
-		TurnstileEnabled:    settings.TurnstileEnabled,
-		TurnstileSiteKey:    settings.TurnstileSiteKey,
-		SiteName:            settings.SiteName,
-		SiteLogo:            settings.SiteLogo,
-		SiteSubtitle:        settings.SiteSubtitle,
-		APIBaseURL:          settings.APIBaseURL,
-		ContactInfo:         settings.ContactInfo,
-		DocURL:              settings.DocURL,
-		HomeContent:         settings.HomeContent,
-		HideCcsImportButton: settings.HideCcsImportButton,
-		LinuxDoOAuthEnabled: settings.LinuxDoOAuthEnabled,
-		Version:             h.version,
+		RegistrationEnabled:         settings.RegistrationEnabled,
+		EmailVerifyEnabled:          settings.EmailVerifyEnabled,
+		PromoCodeEnabled:            settings.PromoCodeEnabled,
+		PasswordResetEnabled:        settings.PasswordResetEnabled,
+		TotpEnabled:                 settings.TotpEnabled,
+		TurnstileEnabled:            settings.TurnstileEnabled,
+		TurnstileSiteKey:            settings.TurnstileSiteKey,
+		SiteName:                    settings.SiteName,
+		SiteLogo:                    settings.SiteLogo,
+		SiteSubtitle:                settings.SiteSubtitle,
+		APIBaseURL:                  settings.APIBaseURL,
+		ContactInfo:                 settings.ContactInfo,
+		DocURL:                      settings.DocURL,
+		HomeContent:                 settings.HomeContent,
+		HideCcsImportButton:         settings.HideCcsImportButton,
+		PurchaseSubscriptionEnabled: settings.PurchaseSubscriptionEnabled,
+		PurchaseSubscriptionURL:     settings.PurchaseSubscriptionURL,
+		LinuxDoOAuthEnabled:         settings.LinuxDoOAuthEnabled,
+		Version:                     h.version,
 	})
 }

backend/internal/handler/totp_handler.go

@@ -0,0 +1,181 @@
+package handler
+
+import (
+	"github.com/gin-gonic/gin"
+
+	"github.com/Wei-Shaw/sub2api/internal/pkg/response"
+	middleware2 "github.com/Wei-Shaw/sub2api/internal/server/middleware"
+	"github.com/Wei-Shaw/sub2api/internal/service"
+)
+
+// TotpHandler handles TOTP-related requests
+type TotpHandler struct {
+	totpService *service.TotpService
+}
+
+// NewTotpHandler creates a new TotpHandler
+func NewTotpHandler(totpService *service.TotpService) *TotpHandler {
+	return &TotpHandler{
+		totpService: totpService,
+	}
+}
+
+// TotpStatusResponse represents the TOTP status response
+type TotpStatusResponse struct {
+	Enabled        bool   `json:"enabled"`
+	EnabledAt      *int64 `json:"enabled_at,omitempty"` // Unix timestamp
+	FeatureEnabled bool   `json:"feature_enabled"`
+}
+
+// GetStatus returns the TOTP status for the current user
+// GET /api/v1/user/totp/status
+func (h *TotpHandler) GetStatus(c *gin.Context) {
+	subject, ok := middleware2.GetAuthSubjectFromContext(c)
+	if !ok {
+		response.Unauthorized(c, "User not authenticated")
+		return
+	}
+
+	status, err := h.totpService.GetStatus(c.Request.Context(), subject.UserID)
+	if err != nil {
+		response.ErrorFrom(c, err)
+		return
+	}
+
+	resp := TotpStatusResponse{
+		Enabled:        status.Enabled,
+		FeatureEnabled: status.FeatureEnabled,
+	}
+
+	if status.EnabledAt != nil {
+		ts := status.EnabledAt.Unix()
+		resp.EnabledAt = &ts
+	}
+
+	response.Success(c, resp)
+}
+
+// TotpSetupRequest represents the request to initiate TOTP setup
+type TotpSetupRequest struct {
+	EmailCode string `json:"email_code"`
+	Password  string `json:"password"`
+}
+
+// TotpSetupResponse represents the TOTP setup response
+type TotpSetupResponse struct {
+	Secret     string `json:"secret"`
+	QRCodeURL  string `json:"qr_code_url"`
+	SetupToken string `json:"setup_token"`
+	Countdown  int    `json:"countdown"`
+}
+
+// InitiateSetup starts the TOTP setup process
+// POST /api/v1/user/totp/setup
+func (h *TotpHandler) InitiateSetup(c *gin.Context) {
+	subject, ok := middleware2.GetAuthSubjectFromContext(c)
+	if !ok {
+		response.Unauthorized(c, "User not authenticated")
+		return
+	}
+
+	var req TotpSetupRequest
+	if err := c.ShouldBindJSON(&req); err != nil {
+		// Allow empty body (optional params)
+		req = TotpSetupRequest{}
+	}
+
+	result, err := h.totpService.InitiateSetup(c.Request.Context(), subject.UserID, req.EmailCode, req.Password)
+	if err != nil {
+		response.ErrorFrom(c, err)
+		return
+	}
+
+	response.Success(c, TotpSetupResponse{
+		Secret:     result.Secret,
+		QRCodeURL:  result.QRCodeURL,
+		SetupToken: result.SetupToken,
+		Countdown:  result.Countdown,
+	})
+}
+
+// TotpEnableRequest represents the request to enable TOTP
+type TotpEnableRequest struct {
+	TotpCode   string `json:"totp_code" binding:"required,len=6"`
+	SetupToken string `json:"setup_token" binding:"required"`
+}
+
+// Enable completes the TOTP setup
+// POST /api/v1/user/totp/enable
+func (h *TotpHandler) Enable(c *gin.Context) {
+	subject, ok := middleware2.GetAuthSubjectFromContext(c)
+	if !ok {
+		response.Unauthorized(c, "User not authenticated")
+		return
+	}
+
+	var req TotpEnableRequest
+	if err := c.ShouldBindJSON(&req); err != nil {
+		response.BadRequest(c, "Invalid request: "+err.Error())
+		return
+	}
+
+	if err := h.totpService.CompleteSetup(c.Request.Context(), subject.UserID, req.TotpCode, req.SetupToken); err != nil {
+		response.ErrorFrom(c, err)
+		return
+	}
+
+	response.Success(c, gin.H{"success": true})
+}
+
+// TotpDisableRequest represents the request to disable TOTP
+type TotpDisableRequest struct {
+	EmailCode string `json:"email_code"`
+	Password  string `json:"password"`
+}
+
+// Disable disables TOTP for the current user
+// POST /api/v1/user/totp/disable
+func (h *TotpHandler) Disable(c *gin.Context) {
+	subject, ok := middleware2.GetAuthSubjectFromContext(c)
+	if !ok {
+		response.Unauthorized(c, "User not authenticated")
+		return
+	}
+
+	var req TotpDisableRequest
+	if err := c.ShouldBindJSON(&req); err != nil {
+		response.BadRequest(c, "Invalid request: "+err.Error())
+		return
+	}
+
+	if err := h.totpService.Disable(c.Request.Context(), subject.UserID, req.EmailCode, req.Password); err != nil {
+		response.ErrorFrom(c, err)
+		return
+	}
+
+	response.Success(c, gin.H{"success": true})
+}
+
+// GetVerificationMethod returns the verification method for TOTP operations
+// GET /api/v1/user/totp/verification-method
+func (h *TotpHandler) GetVerificationMethod(c *gin.Context) {
+	method := h.totpService.GetVerificationMethod(c.Request.Context())
+	response.Success(c, method)
+}
+
+// SendVerifyCode sends an email verification code for TOTP operations
+// POST /api/v1/user/totp/send-code
+func (h *TotpHandler) SendVerifyCode(c *gin.Context) {
+	subject, ok := middleware2.GetAuthSubjectFromContext(c)
+	if !ok {
+		response.Unauthorized(c, "User not authenticated")
+		return
+	}
+
+	if err := h.totpService.SendVerifyCode(c.Request.Context(), subject.UserID); err != nil {
+		response.ErrorFrom(c, err)
+		return
+	}
+
+	response.Success(c, gin.H{"success": true})
+}

backend/internal/handler/wire.go

@@ -70,6 +70,7 @@ func ProvideHandlers(
 	gatewayHandler *GatewayHandler,
 	openaiGatewayHandler *OpenAIGatewayHandler,
 	settingHandler *SettingHandler,
+	totpHandler *TotpHandler,
 ) *Handlers {
 	return &Handlers{
 		Auth:          authHandler,
@@ -82,6 +83,7 @@ func ProvideHandlers(
 		Gateway:       gatewayHandler,
 		OpenAIGateway: openaiGatewayHandler,
 		Setting:       settingHandler,
+		Totp:          totpHandler,
 	}
 }
 
@@ -96,6 +98,7 @@ var ProviderSet = wire.NewSet(
 	NewSubscriptionHandler,
 	NewGatewayHandler,
 	NewOpenAIGatewayHandler,
+	NewTotpHandler,
 	ProvideSettingHandler,
 
 	// Admin handlers

backend/internal/pkg/antigravity/oauth.go

@@ -33,7 +33,7 @@ const (
 		"https://www.googleapis.com/auth/experimentsandconfigs"
 
 	// User-Agent（与 Antigravity-Manager 保持一致）
-	UserAgent = "antigravity/1.11.9 windows/amd64"
+	UserAgent = "antigravity/1.15.8 windows/amd64"
 
 	// Session 过期时间
 	SessionTTL = 30 * time.Minute

backend/internal/pkg/antigravity/request_transformer.go

@@ -367,8 +367,10 @@ func buildParts(content json.RawMessage, toolIDToName map[string]string, allowDu
 				Text:    block.Thinking,
 				Thought: true,
 			}
-			// 保留原有 signature（Claude 模型需要有效的 signature）
-			if block.Signature != "" {
+			// signature 处理：
+			// - Claude 模型（allowDummyThought=false）：必须是上游返回的真实 signature（dummy 视为缺失）
+			// - Gemini 模型（allowDummyThought=true）：优先透传真实 signature，缺失时使用 dummy signature
+			if block.Signature != "" && (allowDummyThought || block.Signature != dummyThoughtSignature) {
 				part.ThoughtSignature = block.Signature
 			} else if !allowDummyThought {
 				// Claude 模型需要有效 signature；在缺失时降级为普通文本，并在上层禁用 thinking mode。
@@ -407,12 +409,12 @@ func buildParts(content json.RawMessage, toolIDToName map[string]string, allowDu
 				},
 			}
 			// tool_use 的 signature 处理：
-			// - Gemini 模型：使用 dummy signature（跳过 thought_signature 校验）
-			// - Claude 模型：透传上游返回的真实 signature（Vertex/Google 需要完整签名链路）
-			if allowDummyThought {
-				part.ThoughtSignature = dummyThoughtSignature
-			} else if block.Signature != "" && block.Signature != dummyThoughtSignature {
+			// - Claude 模型（allowDummyThought=false）：必须是上游返回的真实 signature（dummy 视为缺失）
+			// - Gemini 模型（allowDummyThought=true）：优先透传真实 signature，缺失时使用 dummy signature
+			if block.Signature != "" && (allowDummyThought || block.Signature != dummyThoughtSignature) {
 				part.ThoughtSignature = block.Signature
+			} else if allowDummyThought {
+				part.ThoughtSignature = dummyThoughtSignature
 			}
 			parts = append(parts, part)
 

backend/internal/pkg/antigravity/request_transformer_test.go

@@ -100,7 +100,7 @@ func TestBuildParts_ToolUseSignatureHandling(t *testing.T) {
 		{"type": "tool_use", "id": "t1", "name": "Bash", "input": {"command": "ls"}, "signature": "sig_tool_abc"}
 	]`
 
-	t.Run("Gemini uses dummy tool_use signature", func(t *testing.T) {
+	t.Run("Gemini preserves provided tool_use signature", func(t *testing.T) {
 		toolIDToName := make(map[string]string)
 		parts, _, err := buildParts(json.RawMessage(content), toolIDToName, true)
 		if err != nil {
@@ -109,6 +109,23 @@ func TestBuildParts_ToolUseSignatureHandling(t *testing.T) {
 		if len(parts) != 1 || parts[0].FunctionCall == nil {
 			t.Fatalf("expected 1 functionCall part, got %+v", parts)
 		}
+		if parts[0].ThoughtSignature != "sig_tool_abc" {
+			t.Fatalf("expected preserved tool signature %q, got %q", "sig_tool_abc", parts[0].ThoughtSignature)
+		}
+	})
+
+	t.Run("Gemini falls back to dummy tool_use signature when missing", func(t *testing.T) {
+		contentNoSig := `[
+			{"type": "tool_use", "id": "t1", "name": "Bash", "input": {"command": "ls"}}
+		]`
+		toolIDToName := make(map[string]string)
+		parts, _, err := buildParts(json.RawMessage(contentNoSig), toolIDToName, true)
+		if err != nil {
+			t.Fatalf("buildParts() error = %v", err)
+		}
+		if len(parts) != 1 || parts[0].FunctionCall == nil {
+			t.Fatalf("expected 1 functionCall part, got %+v", parts)
+		}
 		if parts[0].ThoughtSignature != dummyThoughtSignature {
 			t.Fatalf("expected dummy tool signature %q, got %q", dummyThoughtSignature, parts[0].ThoughtSignature)
 		}

backend/internal/pkg/response/response.go

@@ -2,6 +2,7 @@
 package response
 
 import (
+	"log"
 	"math"
 	"net/http"
 
@@ -74,6 +75,12 @@ func ErrorFrom(c *gin.Context, err error) bool {
 	}
 
 	statusCode, status := infraerrors.ToHTTP(err)
+
+	// Log internal errors with full details for debugging
+	if statusCode >= 500 && c.Request != nil {
+		log.Printf("[ERROR] %s %s\n  Error: %s", c.Request.Method, c.Request.URL.Path, err.Error())
+	}
+
 	ErrorWithDetails(c, statusCode, status.Message, status.Reason, status.Metadata)
 	return true
 }

backend/internal/pkg/tlsfingerprint/dialer_integration_test.go

@@ -0,0 +1,278 @@
+//go:build integration
+
+// Package tlsfingerprint provides TLS fingerprint simulation for HTTP clients.
+//
+// Integration tests for verifying TLS fingerprint correctness.
+// These tests make actual network requests to external services and should be run manually.
+//
+// Run with: go test -v -tags=integration ./internal/pkg/tlsfingerprint/...
+package tlsfingerprint
+
+import (
+	"context"
+	"encoding/json"
+	"io"
+	"net/http"
+	"strings"
+	"testing"
+	"time"
+)
+
+// skipIfExternalServiceUnavailable checks if the external service is available.
+// If not, it skips the test instead of failing.
+func skipIfExternalServiceUnavailable(t *testing.T, err error) {
+	t.Helper()
+	if err != nil {
+		// Check for common network/TLS errors that indicate external service issues
+		errStr := err.Error()
+		if strings.Contains(errStr, "certificate has expired") ||
+			strings.Contains(errStr, "certificate is not yet valid") ||
+			strings.Contains(errStr, "connection refused") ||
+			strings.Contains(errStr, "no such host") ||
+			strings.Contains(errStr, "network is unreachable") ||
+			strings.Contains(errStr, "timeout") {
+			t.Skipf("skipping test: external service unavailable: %v", err)
+		}
+		t.Fatalf("failed to get fingerprint: %v", err)
+	}
+}
+
+// TestJA3Fingerprint verifies the JA3/JA4 fingerprint matches expected value.
+// This test uses tls.peet.ws to verify the fingerprint.
+// Expected JA3 hash: 1a28e69016765d92e3b381168d68922c (Claude CLI / Node.js 20.x)
+// Expected JA4: t13d5911h1_a33745022dd6_1f22a2ca17c4 (d=domain) or t13i5911h1_... (i=IP)
+func TestJA3Fingerprint(t *testing.T) {
+	// Skip if network is unavailable or if running in short mode
+	if testing.Short() {
+		t.Skip("skipping integration test in short mode")
+	}
+
+	profile := &Profile{
+		Name:         "Claude CLI Test",
+		EnableGREASE: false,
+	}
+	dialer := NewDialer(profile, nil)
+
+	client := &http.Client{
+		Transport: &http.Transport{
+			DialTLSContext: dialer.DialTLSContext,
+		},
+		Timeout: 30 * time.Second,
+	}
+
+	// Use tls.peet.ws fingerprint detection API
+	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
+	defer cancel()
+
+	req, err := http.NewRequestWithContext(ctx, "GET", "https://tls.peet.ws/api/all", nil)
+	if err != nil {
+		t.Fatalf("failed to create request: %v", err)
+	}
+	req.Header.Set("User-Agent", "Claude Code/2.0.0 Node.js/20.0.0")
+
+	resp, err := client.Do(req)
+	skipIfExternalServiceUnavailable(t, err)
+	defer func() { _ = resp.Body.Close() }()
+
+	body, err := io.ReadAll(resp.Body)
+	if err != nil {
+		t.Fatalf("failed to read response: %v", err)
+	}
+
+	var fpResp FingerprintResponse
+	if err := json.Unmarshal(body, &fpResp); err != nil {
+		t.Logf("Response body: %s", string(body))
+		t.Fatalf("failed to parse fingerprint response: %v", err)
+	}
+
+	// Log all fingerprint information
+	t.Logf("JA3: %s", fpResp.TLS.JA3)
+	t.Logf("JA3 Hash: %s", fpResp.TLS.JA3Hash)
+	t.Logf("JA4: %s", fpResp.TLS.JA4)
+	t.Logf("PeetPrint: %s", fpResp.TLS.PeetPrint)
+	t.Logf("PeetPrint Hash: %s", fpResp.TLS.PeetPrintHash)
+
+	// Verify JA3 hash matches expected value
+	expectedJA3Hash := "1a28e69016765d92e3b381168d68922c"
+	if fpResp.TLS.JA3Hash == expectedJA3Hash {
+		t.Logf("✓ JA3 hash matches expected value: %s", expectedJA3Hash)
+	} else {
+		t.Errorf("✗ JA3 hash mismatch: got %s, expected %s", fpResp.TLS.JA3Hash, expectedJA3Hash)
+	}
+
+	// Verify JA4 fingerprint
+	// JA4 format: t[version][sni][cipher_count][ext_count][alpn]_[cipher_hash]_[ext_hash]
+	// Expected: t13d5910h1 (d=domain) or t13i5910h1 (i=IP)
+	// The suffix _a33745022dd6_1f22a2ca17c4 should match
+	expectedJA4Suffix := "_a33745022dd6_1f22a2ca17c4"
+	if strings.HasSuffix(fpResp.TLS.JA4, expectedJA4Suffix) {
+		t.Logf("✓ JA4 suffix matches expected value: %s", expectedJA4Suffix)
+	} else {
+		t.Errorf("✗ JA4 suffix mismatch: got %s, expected suffix %s", fpResp.TLS.JA4, expectedJA4Suffix)
+	}
+
+	// Verify JA4 prefix (t13d5911h1 or t13i5911h1)
+	// d = domain (SNI present), i = IP (no SNI)
+	// Since we connect to tls.peet.ws (domain), we expect 'd'
+	expectedJA4Prefix := "t13d5911h1"
+	if strings.HasPrefix(fpResp.TLS.JA4, expectedJA4Prefix) {
+		t.Logf("✓ JA4 prefix matches: %s (t13=TLS1.3, d=domain, 59=ciphers, 11=extensions, h1=HTTP/1.1)", expectedJA4Prefix)
+	} else {
+		// Also accept 'i' variant for IP connections
+		altPrefix := "t13i5911h1"
+		if strings.HasPrefix(fpResp.TLS.JA4, altPrefix) {
+			t.Logf("✓ JA4 prefix matches (IP variant): %s", altPrefix)
+		} else {
+			t.Errorf("✗ JA4 prefix mismatch: got %s, expected %s or %s", fpResp.TLS.JA4, expectedJA4Prefix, altPrefix)
+		}
+	}
+
+	// Verify JA3 contains expected cipher suites (TLS 1.3 ciphers at the beginning)
+	if strings.Contains(fpResp.TLS.JA3, "4866-4867-4865") {
+		t.Logf("✓ JA3 contains expected TLS 1.3 cipher suites")
+	} else {
+		t.Logf("Warning: JA3 does not contain expected TLS 1.3 cipher suites")
+	}
+
+	// Verify extension list (should be 11 extensions including SNI)
+	// Expected: 0-11-10-35-16-22-23-13-43-45-51
+	expectedExtensions := "0-11-10-35-16-22-23-13-43-45-51"
+	if strings.Contains(fpResp.TLS.JA3, expectedExtensions) {
+		t.Logf("✓ JA3 contains expected extension list: %s", expectedExtensions)
+	} else {
+		t.Logf("Warning: JA3 extension list may differ")
+	}
+}
+
+// TestProfileExpectation defines expected fingerprint values for a profile.
+type TestProfileExpectation struct {
+	Profile       *Profile
+	ExpectedJA3   string // Expected JA3 hash (empty = don't check)
+	ExpectedJA4   string // Expected full JA4 (empty = don't check)
+	JA4CipherHash string // Expected JA4 cipher hash - the stable middle part (empty = don't check)
+}
+
+// TestAllProfiles tests multiple TLS fingerprint profiles against tls.peet.ws.
+// Run with: go test -v -tags=integration -run TestAllProfiles ./internal/pkg/tlsfingerprint/...
+func TestAllProfiles(t *testing.T) {
+	if testing.Short() {
+		t.Skip("skipping integration test in short mode")
+	}
+
+	// Define all profiles to test with their expected fingerprints
+	// These profiles are from config.yaml gateway.tls_fingerprint.profiles
+	profiles := []TestProfileExpectation{
+		{
+			// Linux x64 Node.js v22.17.1
+			// Expected JA3 Hash: 1a28e69016765d92e3b381168d68922c
+			// Expected JA4: t13d5911h1_a33745022dd6_1f22a2ca17c4
+			Profile: &Profile{
+				Name:         "linux_x64_node_v22171",
+				EnableGREASE: false,
+				CipherSuites: []uint16{4866, 4867, 4865, 49199, 49195, 49200, 49196, 158, 49191, 103, 49192, 107, 163, 159, 52393, 52392, 52394, 49327, 49325, 49315, 49311, 49245, 49249, 49239, 49235, 162, 49326, 49324, 49314, 49310, 49244, 49248, 49238, 49234, 49188, 106, 49187, 64, 49162, 49172, 57, 56, 49161, 49171, 51, 50, 157, 49313, 49309, 49233, 156, 49312, 49308, 49232, 61, 60, 53, 47, 255},
+				Curves:       []uint16{29, 23, 30, 25, 24, 256, 257, 258, 259, 260},
+				PointFormats: []uint8{0, 1, 2},
+			},
+			JA4CipherHash: "a33745022dd6", // stable part
+		},
+		{
+			// MacOS arm64 Node.js v22.18.0
+			// Expected JA3 Hash: 70cb5ca646080902703ffda87036a5ea
+			// Expected JA4: t13d5912h1_a33745022dd6_dbd39dd1d406
+			Profile: &Profile{
+				Name:         "macos_arm64_node_v22180",
+				EnableGREASE: false,
+				CipherSuites: []uint16{4866, 4867, 4865, 49199, 49195, 49200, 49196, 158, 49191, 103, 49192, 107, 163, 159, 52393, 52392, 52394, 49327, 49325, 49315, 49311, 49245, 49249, 49239, 49235, 162, 49326, 49324, 49314, 49310, 49244, 49248, 49238, 49234, 49188, 106, 49187, 64, 49162, 49172, 57, 56, 49161, 49171, 51, 50, 157, 49313, 49309, 49233, 156, 49312, 49308, 49232, 61, 60, 53, 47, 255},
+				Curves:       []uint16{29, 23, 30, 25, 24, 256, 257, 258, 259, 260},
+				PointFormats: []uint8{0, 1, 2},
+			},
+			JA4CipherHash: "a33745022dd6", // stable part (same cipher suites)
+		},
+	}
+
+	for _, tc := range profiles {
+		tc := tc // capture range variable
+		t.Run(tc.Profile.Name, func(t *testing.T) {
+			fp := fetchFingerprint(t, tc.Profile)
+			if fp == nil {
+				return // fetchFingerprint already called t.Fatal
+			}
+
+			t.Logf("Profile: %s", tc.Profile.Name)
+			t.Logf("  JA3:           %s", fp.JA3)
+			t.Logf("  JA3 Hash:      %s", fp.JA3Hash)
+			t.Logf("  JA4:           %s", fp.JA4)
+			t.Logf("  PeetPrint:     %s", fp.PeetPrint)
+			t.Logf("  PeetPrintHash: %s", fp.PeetPrintHash)
+
+			// Verify expectations
+			if tc.ExpectedJA3 != "" {
+				if fp.JA3Hash == tc.ExpectedJA3 {
+					t.Logf("  ✓ JA3 hash matches: %s", tc.ExpectedJA3)
+				} else {
+					t.Errorf("  ✗ JA3 hash mismatch: got %s, expected %s", fp.JA3Hash, tc.ExpectedJA3)
+				}
+			}
+
+			if tc.ExpectedJA4 != "" {
+				if fp.JA4 == tc.ExpectedJA4 {
+					t.Logf("  ✓ JA4 matches: %s", tc.ExpectedJA4)
+				} else {
+					t.Errorf("  ✗ JA4 mismatch: got %s, expected %s", fp.JA4, tc.ExpectedJA4)
+				}
+			}
+
+			// Check JA4 cipher hash (stable middle part)
+			// JA4 format: prefix_cipherHash_extHash
+			if tc.JA4CipherHash != "" {
+				if strings.Contains(fp.JA4, "_"+tc.JA4CipherHash+"_") {
+					t.Logf("  ✓ JA4 cipher hash matches: %s", tc.JA4CipherHash)
+				} else {
+					t.Errorf("  ✗ JA4 cipher hash mismatch: got %s, expected cipher hash %s", fp.JA4, tc.JA4CipherHash)
+				}
+			}
+		})
+	}
+}
+
+// fetchFingerprint makes a request to tls.peet.ws and returns the TLS fingerprint info.
+func fetchFingerprint(t *testing.T, profile *Profile) *TLSInfo {
+	t.Helper()
+
+	dialer := NewDialer(profile, nil)
+	client := &http.Client{
+		Transport: &http.Transport{
+			DialTLSContext: dialer.DialTLSContext,
+		},
+		Timeout: 30 * time.Second,
+	}
+
+	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
+	defer cancel()
+
+	req, err := http.NewRequestWithContext(ctx, "GET", "https://tls.peet.ws/api/all", nil)
+	if err != nil {
+		t.Fatalf("failed to create request: %v", err)
+		return nil
+	}
+	req.Header.Set("User-Agent", "Claude Code/2.0.0 Node.js/20.0.0")
+
+	resp, err := client.Do(req)
+	skipIfExternalServiceUnavailable(t, err)
+	defer func() { _ = resp.Body.Close() }()
+
+	body, err := io.ReadAll(resp.Body)
+	if err != nil {
+		t.Fatalf("failed to read response: %v", err)
+		return nil
+	}
+
+	var fpResp FingerprintResponse
+	if err := json.Unmarshal(body, &fpResp); err != nil {
+		t.Logf("Response body: %s", string(body))
+		t.Fatalf("failed to parse fingerprint response: %v", err)
+		return nil
+	}
+
+	return &fpResp.TLS
+}

backend/internal/pkg/tlsfingerprint/dialer_test.go

@@ -1,21 +1,16 @@
 // Package tlsfingerprint provides TLS fingerprint simulation for HTTP clients.
 //
-// Integration tests for verifying TLS fingerprint correctness.
-// These tests make actual network requests and should be run manually.
+// Unit tests for TLS fingerprint dialer.
+// Integration tests that require external network are in dialer_integration_test.go
+// and require the 'integration' build tag.
 //
-// Run with: go test -v ./internal/pkg/tlsfingerprint/...
-// Run integration tests: go test -v -run TestJA3 ./internal/pkg/tlsfingerprint/...
+// Run unit tests: go test -v ./internal/pkg/tlsfingerprint/...
+// Run integration tests: go test -v -tags=integration ./internal/pkg/tlsfingerprint/...
 package tlsfingerprint
 
 import (
-	"context"
-	"encoding/json"
-	"io"
-	"net/http"
 	"net/url"
-	"strings"
 	"testing"
-	"time"
 )
 
 // FingerprintResponse represents the response from tls.peet.ws/api/all.
@@ -36,148 +31,6 @@ type TLSInfo struct {
 	SessionID     string `json:"session_id"`
 }
 
-// TestDialerBasicConnection tests that the dialer can establish TLS connections.
-func TestDialerBasicConnection(t *testing.T) {
-	if testing.Short() {
-		t.Skip("skipping network test in short mode")
-	}
-
-	// Create a dialer with default profile
-	profile := &Profile{
-		Name:         "Test Profile",
-		EnableGREASE: false,
-	}
-	dialer := NewDialer(profile, nil)
-
-	// Create HTTP client with custom TLS dialer
-	client := &http.Client{
-		Transport: &http.Transport{
-			DialTLSContext: dialer.DialTLSContext,
-		},
-		Timeout: 30 * time.Second,
-	}
-
-	// Make a request to a known HTTPS endpoint
-	resp, err := client.Get("https://www.google.com")
-	if err != nil {
-		t.Fatalf("failed to connect: %v", err)
-	}
-	defer func() { _ = resp.Body.Close() }()
-
-	if resp.StatusCode != http.StatusOK {
-		t.Errorf("expected status 200, got %d", resp.StatusCode)
-	}
-}
-
-// TestJA3Fingerprint verifies the JA3/JA4 fingerprint matches expected value.
-// This test uses tls.peet.ws to verify the fingerprint.
-// Expected JA3 hash: 1a28e69016765d92e3b381168d68922c (Claude CLI / Node.js 20.x)
-// Expected JA4: t13d5911h1_a33745022dd6_1f22a2ca17c4 (d=domain) or t13i5911h1_... (i=IP)
-func TestJA3Fingerprint(t *testing.T) {
-	// Skip if network is unavailable or if running in short mode
-	if testing.Short() {
-		t.Skip("skipping integration test in short mode")
-	}
-
-	profile := &Profile{
-		Name:         "Claude CLI Test",
-		EnableGREASE: false,
-	}
-	dialer := NewDialer(profile, nil)
-
-	client := &http.Client{
-		Transport: &http.Transport{
-			DialTLSContext: dialer.DialTLSContext,
-		},
-		Timeout: 30 * time.Second,
-	}
-
-	// Use tls.peet.ws fingerprint detection API
-	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
-	defer cancel()
-
-	req, err := http.NewRequestWithContext(ctx, "GET", "https://tls.peet.ws/api/all", nil)
-	if err != nil {
-		t.Fatalf("failed to create request: %v", err)
-	}
-	req.Header.Set("User-Agent", "Claude Code/2.0.0 Node.js/20.0.0")
-
-	resp, err := client.Do(req)
-	if err != nil {
-		t.Fatalf("failed to get fingerprint: %v", err)
-	}
-	defer func() { _ = resp.Body.Close() }()
-
-	body, err := io.ReadAll(resp.Body)
-	if err != nil {
-		t.Fatalf("failed to read response: %v", err)
-	}
-
-	var fpResp FingerprintResponse
-	if err := json.Unmarshal(body, &fpResp); err != nil {
-		t.Logf("Response body: %s", string(body))
-		t.Fatalf("failed to parse fingerprint response: %v", err)
-	}
-
-	// Log all fingerprint information
-	t.Logf("JA3: %s", fpResp.TLS.JA3)
-	t.Logf("JA3 Hash: %s", fpResp.TLS.JA3Hash)
-	t.Logf("JA4: %s", fpResp.TLS.JA4)
-	t.Logf("PeetPrint: %s", fpResp.TLS.PeetPrint)
-	t.Logf("PeetPrint Hash: %s", fpResp.TLS.PeetPrintHash)
-
-	// Verify JA3 hash matches expected value
-	expectedJA3Hash := "1a28e69016765d92e3b381168d68922c"
-	if fpResp.TLS.JA3Hash == expectedJA3Hash {
-		t.Logf("✓ JA3 hash matches expected value: %s", expectedJA3Hash)
-	} else {
-		t.Errorf("✗ JA3 hash mismatch: got %s, expected %s", fpResp.TLS.JA3Hash, expectedJA3Hash)
-	}
-
-	// Verify JA4 fingerprint
-	// JA4 format: t[version][sni][cipher_count][ext_count][alpn]_[cipher_hash]_[ext_hash]
-	// Expected: t13d5910h1 (d=domain) or t13i5910h1 (i=IP)
-	// The suffix _a33745022dd6_1f22a2ca17c4 should match
-	expectedJA4Suffix := "_a33745022dd6_1f22a2ca17c4"
-	if strings.HasSuffix(fpResp.TLS.JA4, expectedJA4Suffix) {
-		t.Logf("✓ JA4 suffix matches expected value: %s", expectedJA4Suffix)
-	} else {
-		t.Errorf("✗ JA4 suffix mismatch: got %s, expected suffix %s", fpResp.TLS.JA4, expectedJA4Suffix)
-	}
-
-	// Verify JA4 prefix (t13d5911h1 or t13i5911h1)
-	// d = domain (SNI present), i = IP (no SNI)
-	// Since we connect to tls.peet.ws (domain), we expect 'd'
-	expectedJA4Prefix := "t13d5911h1"
-	if strings.HasPrefix(fpResp.TLS.JA4, expectedJA4Prefix) {
-		t.Logf("✓ JA4 prefix matches: %s (t13=TLS1.3, d=domain, 59=ciphers, 11=extensions, h1=HTTP/1.1)", expectedJA4Prefix)
-	} else {
-		// Also accept 'i' variant for IP connections
-		altPrefix := "t13i5911h1"
-		if strings.HasPrefix(fpResp.TLS.JA4, altPrefix) {
-			t.Logf("✓ JA4 prefix matches (IP variant): %s", altPrefix)
-		} else {
-			t.Errorf("✗ JA4 prefix mismatch: got %s, expected %s or %s", fpResp.TLS.JA4, expectedJA4Prefix, altPrefix)
-		}
-	}
-
-	// Verify JA3 contains expected cipher suites (TLS 1.3 ciphers at the beginning)
-	if strings.Contains(fpResp.TLS.JA3, "4866-4867-4865") {
-		t.Logf("✓ JA3 contains expected TLS 1.3 cipher suites")
-	} else {
-		t.Logf("Warning: JA3 does not contain expected TLS 1.3 cipher suites")
-	}
-
-	// Verify extension list (should be 11 extensions including SNI)
-	// Expected: 0-11-10-35-16-22-23-13-43-45-51
-	expectedExtensions := "0-11-10-35-16-22-23-13-43-45-51"
-	if strings.Contains(fpResp.TLS.JA3, expectedExtensions) {
-		t.Logf("✓ JA3 contains expected extension list: %s", expectedExtensions)
-	} else {
-		t.Logf("Warning: JA3 extension list may differ")
-	}
-}
-
 // TestDialerWithProfile tests that different profiles produce different fingerprints.
 func TestDialerWithProfile(t *testing.T) {
 	// Create two dialers with different profiles
@@ -305,139 +158,3 @@ func mustParseURL(rawURL string) *url.URL {
 	}
 	return u
 }
-
-// TestProfileExpectation defines expected fingerprint values for a profile.
-type TestProfileExpectation struct {
-	Profile       *Profile
-	ExpectedJA3   string // Expected JA3 hash (empty = don't check)
-	ExpectedJA4   string // Expected full JA4 (empty = don't check)
-	JA4CipherHash string // Expected JA4 cipher hash - the stable middle part (empty = don't check)
-}
-
-// TestAllProfiles tests multiple TLS fingerprint profiles against tls.peet.ws.
-// Run with: go test -v -run TestAllProfiles ./internal/pkg/tlsfingerprint/...
-func TestAllProfiles(t *testing.T) {
-	if testing.Short() {
-		t.Skip("skipping integration test in short mode")
-	}
-
-	// Define all profiles to test with their expected fingerprints
-	// These profiles are from config.yaml gateway.tls_fingerprint.profiles
-	profiles := []TestProfileExpectation{
-		{
-			// Linux x64 Node.js v22.17.1
-			// Expected JA3 Hash: 1a28e69016765d92e3b381168d68922c
-			// Expected JA4: t13d5911h1_a33745022dd6_1f22a2ca17c4
-			Profile: &Profile{
-				Name:         "linux_x64_node_v22171",
-				EnableGREASE: false,
-				CipherSuites: []uint16{4866, 4867, 4865, 49199, 49195, 49200, 49196, 158, 49191, 103, 49192, 107, 163, 159, 52393, 52392, 52394, 49327, 49325, 49315, 49311, 49245, 49249, 49239, 49235, 162, 49326, 49324, 49314, 49310, 49244, 49248, 49238, 49234, 49188, 106, 49187, 64, 49162, 49172, 57, 56, 49161, 49171, 51, 50, 157, 49313, 49309, 49233, 156, 49312, 49308, 49232, 61, 60, 53, 47, 255},
-				Curves:       []uint16{29, 23, 30, 25, 24, 256, 257, 258, 259, 260},
-				PointFormats: []uint8{0, 1, 2},
-			},
-			JA4CipherHash: "a33745022dd6", // stable part
-		},
-		{
-			// MacOS arm64 Node.js v22.18.0
-			// Expected JA3 Hash: 70cb5ca646080902703ffda87036a5ea
-			// Expected JA4: t13d5912h1_a33745022dd6_dbd39dd1d406
-			Profile: &Profile{
-				Name:         "macos_arm64_node_v22180",
-				EnableGREASE: false,
-				CipherSuites: []uint16{4866, 4867, 4865, 49199, 49195, 49200, 49196, 158, 49191, 103, 49192, 107, 163, 159, 52393, 52392, 52394, 49327, 49325, 49315, 49311, 49245, 49249, 49239, 49235, 162, 49326, 49324, 49314, 49310, 49244, 49248, 49238, 49234, 49188, 106, 49187, 64, 49162, 49172, 57, 56, 49161, 49171, 51, 50, 157, 49313, 49309, 49233, 156, 49312, 49308, 49232, 61, 60, 53, 47, 255},
-				Curves:       []uint16{29, 23, 30, 25, 24, 256, 257, 258, 259, 260},
-				PointFormats: []uint8{0, 1, 2},
-			},
-			JA4CipherHash: "a33745022dd6", // stable part (same cipher suites)
-		},
-	}
-
-	for _, tc := range profiles {
-		tc := tc // capture range variable
-		t.Run(tc.Profile.Name, func(t *testing.T) {
-			fp := fetchFingerprint(t, tc.Profile)
-			if fp == nil {
-				return // fetchFingerprint already called t.Fatal
-			}
-
-			t.Logf("Profile: %s", tc.Profile.Name)
-			t.Logf("  JA3:           %s", fp.JA3)
-			t.Logf("  JA3 Hash:      %s", fp.JA3Hash)
-			t.Logf("  JA4:           %s", fp.JA4)
-			t.Logf("  PeetPrint:     %s", fp.PeetPrint)
-			t.Logf("  PeetPrintHash: %s", fp.PeetPrintHash)
-
-			// Verify expectations
-			if tc.ExpectedJA3 != "" {
-				if fp.JA3Hash == tc.ExpectedJA3 {
-					t.Logf("  ✓ JA3 hash matches: %s", tc.ExpectedJA3)
-				} else {
-					t.Errorf("  ✗ JA3 hash mismatch: got %s, expected %s", fp.JA3Hash, tc.ExpectedJA3)
-				}
-			}
-
-			if tc.ExpectedJA4 != "" {
-				if fp.JA4 == tc.ExpectedJA4 {
-					t.Logf("  ✓ JA4 matches: %s", tc.ExpectedJA4)
-				} else {
-					t.Errorf("  ✗ JA4 mismatch: got %s, expected %s", fp.JA4, tc.ExpectedJA4)
-				}
-			}
-
-			// Check JA4 cipher hash (stable middle part)
-			// JA4 format: prefix_cipherHash_extHash
-			if tc.JA4CipherHash != "" {
-				if strings.Contains(fp.JA4, "_"+tc.JA4CipherHash+"_") {
-					t.Logf("  ✓ JA4 cipher hash matches: %s", tc.JA4CipherHash)
-				} else {
-					t.Errorf("  ✗ JA4 cipher hash mismatch: got %s, expected cipher hash %s", fp.JA4, tc.JA4CipherHash)
-				}
-			}
-		})
-	}
-}
-
-// fetchFingerprint makes a request to tls.peet.ws and returns the TLS fingerprint info.
-func fetchFingerprint(t *testing.T, profile *Profile) *TLSInfo {
-	t.Helper()
-
-	dialer := NewDialer(profile, nil)
-	client := &http.Client{
-		Transport: &http.Transport{
-			DialTLSContext: dialer.DialTLSContext,
-		},
-		Timeout: 30 * time.Second,
-	}
-
-	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
-	defer cancel()
-
-	req, err := http.NewRequestWithContext(ctx, "GET", "https://tls.peet.ws/api/all", nil)
-	if err != nil {
-		t.Fatalf("failed to create request: %v", err)
-		return nil
-	}
-	req.Header.Set("User-Agent", "Claude Code/2.0.0 Node.js/20.0.0")
-
-	resp, err := client.Do(req)
-	if err != nil {
-		t.Fatalf("failed to get fingerprint: %v", err)
-		return nil
-	}
-	defer func() { _ = resp.Body.Close() }()
-
-	body, err := io.ReadAll(resp.Body)
-	if err != nil {
-		t.Fatalf("failed to read response: %v", err)
-		return nil
-	}
-
-	var fpResp FingerprintResponse
-	if err := json.Unmarshal(body, &fpResp); err != nil {
-		t.Logf("Response body: %s", string(body))
-		t.Fatalf("failed to parse fingerprint response: %v", err)
-		return nil
-	}
-
-	return &fpResp.TLS
-}

backend/internal/repository/aes_encryptor.go

@@ -0,0 +1,95 @@
+package repository
+
+import (
+	"crypto/aes"
+	"crypto/cipher"
+	"crypto/rand"
+	"encoding/base64"
+	"encoding/hex"
+	"fmt"
+	"io"
+
+	"github.com/Wei-Shaw/sub2api/internal/config"
+	"github.com/Wei-Shaw/sub2api/internal/service"
+)
+
+// AESEncryptor implements SecretEncryptor using AES-256-GCM
+type AESEncryptor struct {
+	key []byte
+}
+
+// NewAESEncryptor creates a new AES encryptor
+func NewAESEncryptor(cfg *config.Config) (service.SecretEncryptor, error) {
+	key, err := hex.DecodeString(cfg.Totp.EncryptionKey)
+	if err != nil {
+		return nil, fmt.Errorf("invalid totp encryption key: %w", err)
+	}
+
+	if len(key) != 32 {
+		return nil, fmt.Errorf("totp encryption key must be 32 bytes (64 hex chars), got %d bytes", len(key))
+	}
+
+	return &AESEncryptor{key: key}, nil
+}
+
+// Encrypt encrypts plaintext using AES-256-GCM
+// Output format: base64(nonce + ciphertext + tag)
+func (e *AESEncryptor) Encrypt(plaintext string) (string, error) {
+	block, err := aes.NewCipher(e.key)
+	if err != nil {
+		return "", fmt.Errorf("create cipher: %w", err)
+	}
+
+	gcm, err := cipher.NewGCM(block)
+	if err != nil {
+		return "", fmt.Errorf("create gcm: %w", err)
+	}
+
+	// Generate a random nonce
+	nonce := make([]byte, gcm.NonceSize())
+	if _, err := io.ReadFull(rand.Reader, nonce); err != nil {
+		return "", fmt.Errorf("generate nonce: %w", err)
+	}
+
+	// Encrypt the plaintext
+	// Seal appends the ciphertext and tag to the nonce
+	ciphertext := gcm.Seal(nonce, nonce, []byte(plaintext), nil)
+
+	// Encode as base64
+	return base64.StdEncoding.EncodeToString(ciphertext), nil
+}
+
+// Decrypt decrypts ciphertext using AES-256-GCM
+func (e *AESEncryptor) Decrypt(ciphertext string) (string, error) {
+	// Decode from base64
+	data, err := base64.StdEncoding.DecodeString(ciphertext)
+	if err != nil {
+		return "", fmt.Errorf("decode base64: %w", err)
+	}
+
+	block, err := aes.NewCipher(e.key)
+	if err != nil {
+		return "", fmt.Errorf("create cipher: %w", err)
+	}
+
+	gcm, err := cipher.NewGCM(block)
+	if err != nil {
+		return "", fmt.Errorf("create gcm: %w", err)
+	}
+
+	nonceSize := gcm.NonceSize()
+	if len(data) < nonceSize {
+		return "", fmt.Errorf("ciphertext too short")
+	}
+
+	// Extract nonce and ciphertext
+	nonce, ciphertextData := data[:nonceSize], data[nonceSize:]
+
+	// Decrypt
+	plaintext, err := gcm.Open(nil, nonce, ciphertextData, nil)
+	if err != nil {
+		return "", fmt.Errorf("decrypt: %w", err)
+	}
+
+	return string(plaintext), nil
+}

backend/internal/repository/api_key_repo.go

@@ -387,17 +387,20 @@ func userEntityToService(u *dbent.User) *service.User {
 		return nil
 	}
 	return &service.User{
-		ID:           u.ID,
-		Email:        u.Email,
-		Username:     u.Username,
-		Notes:        u.Notes,
-		PasswordHash: u.PasswordHash,
-		Role:         u.Role,
-		Balance:      u.Balance,
-		Concurrency:  u.Concurrency,
-		Status:       u.Status,
-		CreatedAt:    u.CreatedAt,
-		UpdatedAt:    u.UpdatedAt,
+		ID:                  u.ID,
+		Email:               u.Email,
+		Username:            u.Username,
+		Notes:               u.Notes,
+		PasswordHash:        u.PasswordHash,
+		Role:                u.Role,
+		Balance:             u.Balance,
+		Concurrency:         u.Concurrency,
+		Status:              u.Status,
+		TotpSecretEncrypted: u.TotpSecretEncrypted,
+		TotpEnabled:         u.TotpEnabled,
+		TotpEnabledAt:       u.TotpEnabledAt,
+		CreatedAt:           u.CreatedAt,
+		UpdatedAt:           u.UpdatedAt,
 	}
 }
 

backend/internal/repository/email_cache.go

@@ -9,13 +9,27 @@ import (
 	"github.com/redis/go-redis/v9"
 )
 
-const verifyCodeKeyPrefix = "verify_code:"
+const (
+	verifyCodeKeyPrefix          = "verify_code:"
+	passwordResetKeyPrefix       = "password_reset:"
+	passwordResetSentAtKeyPrefix = "password_reset_sent:"
+)
 
 // verifyCodeKey generates the Redis key for email verification code.
 func verifyCodeKey(email string) string {
 	return verifyCodeKeyPrefix + email
 }
 
+// passwordResetKey generates the Redis key for password reset token.
+func passwordResetKey(email string) string {
+	return passwordResetKeyPrefix + email
+}
+
+// passwordResetSentAtKey generates the Redis key for password reset email sent timestamp.
+func passwordResetSentAtKey(email string) string {
+	return passwordResetSentAtKeyPrefix + email
+}
+
 type emailCache struct {
 	rdb *redis.Client
 }
@@ -50,3 +64,45 @@ func (c *emailCache) DeleteVerificationCode(ctx context.Context, email string) e
 	key := verifyCodeKey(email)
 	return c.rdb.Del(ctx, key).Err()
 }
+
+// Password reset token methods
+
+func (c *emailCache) GetPasswordResetToken(ctx context.Context, email string) (*service.PasswordResetTokenData, error) {
+	key := passwordResetKey(email)
+	val, err := c.rdb.Get(ctx, key).Result()
+	if err != nil {
+		return nil, err
+	}
+	var data service.PasswordResetTokenData
+	if err := json.Unmarshal([]byte(val), &data); err != nil {
+		return nil, err
+	}
+	return &data, nil
+}
+
+func (c *emailCache) SetPasswordResetToken(ctx context.Context, email string, data *service.PasswordResetTokenData, ttl time.Duration) error {
+	key := passwordResetKey(email)
+	val, err := json.Marshal(data)
+	if err != nil {
+		return err
+	}
+	return c.rdb.Set(ctx, key, val, ttl).Err()
+}
+
+func (c *emailCache) DeletePasswordResetToken(ctx context.Context, email string) error {
+	key := passwordResetKey(email)
+	return c.rdb.Del(ctx, key).Err()
+}
+
+// Password reset email cooldown methods
+
+func (c *emailCache) IsPasswordResetEmailInCooldown(ctx context.Context, email string) bool {
+	key := passwordResetSentAtKey(email)
+	exists, err := c.rdb.Exists(ctx, key).Result()
+	return err == nil && exists > 0
+}
+
+func (c *emailCache) SetPasswordResetEmailCooldown(ctx context.Context, email string, ttl time.Duration) error {
+	key := passwordResetSentAtKey(email)
+	return c.rdb.Set(ctx, key, "1", ttl).Err()
+}

backend/internal/repository/openai_oauth_service.go

@@ -2,11 +2,11 @@ package repository
 
 import (
 	"context"
-	"fmt"
+	"net/http"
 	"net/url"
-	"strings"
 	"time"
 
+	infraerrors "github.com/Wei-Shaw/sub2api/internal/pkg/errors"
 	"github.com/Wei-Shaw/sub2api/internal/pkg/openai"
 	"github.com/Wei-Shaw/sub2api/internal/service"
 	"github.com/imroc/req/v3"
@@ -22,7 +22,7 @@ type openaiOAuthService struct {
 }
 
 func (s *openaiOAuthService) ExchangeCode(ctx context.Context, code, codeVerifier, redirectURI, proxyURL string) (*openai.TokenResponse, error) {
-	client := createOpenAIReqClient(s.tokenURL, proxyURL)
+	client := createOpenAIReqClient(proxyURL)
 
 	if redirectURI == "" {
 		redirectURI = openai.DefaultRedirectURI
@@ -39,23 +39,24 @@ func (s *openaiOAuthService) ExchangeCode(ctx context.Context, code, codeVerifie
 
 	resp, err := client.R().
 		SetContext(ctx).
+		SetHeader("User-Agent", "codex-cli/0.91.0").
 		SetFormDataFromValues(formData).
 		SetSuccessResult(&tokenResp).
 		Post(s.tokenURL)
 
 	if err != nil {
-		return nil, fmt.Errorf("request failed: %w", err)
+		return nil, infraerrors.Newf(http.StatusBadGateway, "OPENAI_OAUTH_REQUEST_FAILED", "request failed: %v", err)
 	}
 
 	if !resp.IsSuccessState() {
-		return nil, fmt.Errorf("token exchange failed: status %d, body: %s", resp.StatusCode, resp.String())
+		return nil, infraerrors.Newf(http.StatusBadGateway, "OPENAI_OAUTH_TOKEN_EXCHANGE_FAILED", "token exchange failed: status %d, body: %s", resp.StatusCode, resp.String())
 	}
 
 	return &tokenResp, nil
 }
 
 func (s *openaiOAuthService) RefreshToken(ctx context.Context, refreshToken, proxyURL string) (*openai.TokenResponse, error) {
-	client := createOpenAIReqClient(s.tokenURL, proxyURL)
+	client := createOpenAIReqClient(proxyURL)
 
 	formData := url.Values{}
 	formData.Set("grant_type", "refresh_token")
@@ -67,29 +68,25 @@ func (s *openaiOAuthService) RefreshToken(ctx context.Context, refreshToken, pro
 
 	resp, err := client.R().
 		SetContext(ctx).
+		SetHeader("User-Agent", "codex-cli/0.91.0").
 		SetFormDataFromValues(formData).
 		SetSuccessResult(&tokenResp).
 		Post(s.tokenURL)
 
 	if err != nil {
-		return nil, fmt.Errorf("request failed: %w", err)
+		return nil, infraerrors.Newf(http.StatusBadGateway, "OPENAI_OAUTH_REQUEST_FAILED", "request failed: %v", err)
 	}
 
 	if !resp.IsSuccessState() {
-		return nil, fmt.Errorf("token refresh failed: status %d, body: %s", resp.StatusCode, resp.String())
+		return nil, infraerrors.Newf(http.StatusBadGateway, "OPENAI_OAUTH_TOKEN_REFRESH_FAILED", "token refresh failed: status %d, body: %s", resp.StatusCode, resp.String())
 	}
 
 	return &tokenResp, nil
 }
 
-func createOpenAIReqClient(tokenURL, proxyURL string) *req.Client {
-	forceHTTP2 := false
-	if parsedURL, err := url.Parse(tokenURL); err == nil {
-		forceHTTP2 = strings.EqualFold(parsedURL.Scheme, "https")
-	}
+func createOpenAIReqClient(proxyURL string) *req.Client {
 	return getSharedReqClient(reqClientOptions{
-		ProxyURL:   proxyURL,
-		Timeout:    120 * time.Second,
-		ForceHTTP2: forceHTTP2,
+		ProxyURL: proxyURL,
+		Timeout:  120 * time.Second,
 	})
 }

backend/internal/repository/req_client_pool_test.go

@@ -77,21 +77,9 @@ func TestGetSharedReqClient_ImpersonateAndProxy(t *testing.T) {
 	require.Equal(t, "http://proxy.local:8080|4s|true|false", buildReqClientKey(opts))
 }
 
-func TestCreateOpenAIReqClient_ForceHTTP2Enabled(t *testing.T) {
-	sharedReqClients = sync.Map{}
-	client := createOpenAIReqClient("https://auth.openai.com/oauth/token", "http://proxy.local:8080")
-	require.Equal(t, "2", forceHTTPVersion(t, client))
-}
-
-func TestCreateOpenAIReqClient_ForceHTTP2DisabledForHTTP(t *testing.T) {
-	sharedReqClients = sync.Map{}
-	client := createOpenAIReqClient("http://localhost/oauth/token", "http://proxy.local:8080")
-	require.Equal(t, "", forceHTTPVersion(t, client))
-}
-
 func TestCreateOpenAIReqClient_Timeout120Seconds(t *testing.T) {
 	sharedReqClients = sync.Map{}
-	client := createOpenAIReqClient("https://auth.openai.com/oauth/token", "http://proxy.local:8080")
+	client := createOpenAIReqClient("http://proxy.local:8080")
 	require.Equal(t, 120*time.Second, client.GetClient().Timeout)
 }
 

backend/internal/repository/scheduler_cache.go

@@ -58,7 +58,9 @@ func (c *schedulerCache) GetSnapshot(ctx context.Context, bucket service.Schedul
 		return nil, false, err
 	}
 	if len(ids) == 0 {
-		return []*service.Account{}, true, nil
+		// 空快照视为缓存未命中，触发数据库回退查询
+		// 这解决了新分组创建后立即绑定账号时的竞态条件问题
+		return nil, false, nil
 	}
 
 	keys := make([]string, 0, len(ids))

backend/internal/repository/totp_cache.go

@@ -0,0 +1,149 @@
+package repository
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"time"
+
+	"github.com/redis/go-redis/v9"
+
+	"github.com/Wei-Shaw/sub2api/internal/service"
+)
+
+const (
+	totpSetupKeyPrefix    = "totp:setup:"
+	totpLoginKeyPrefix    = "totp:login:"
+	totpAttemptsKeyPrefix = "totp:attempts:"
+	totpAttemptsTTL       = 15 * time.Minute
+)
+
+// TotpCache implements service.TotpCache using Redis
+type TotpCache struct {
+	rdb *redis.Client
+}
+
+// NewTotpCache creates a new TOTP cache
+func NewTotpCache(rdb *redis.Client) service.TotpCache {
+	return &TotpCache{rdb: rdb}
+}
+
+// GetSetupSession retrieves a TOTP setup session
+func (c *TotpCache) GetSetupSession(ctx context.Context, userID int64) (*service.TotpSetupSession, error) {
+	key := fmt.Sprintf("%s%d", totpSetupKeyPrefix, userID)
+	data, err := c.rdb.Get(ctx, key).Bytes()
+	if err != nil {
+		if err == redis.Nil {
+			return nil, nil
+		}
+		return nil, fmt.Errorf("get setup session: %w", err)
+	}
+
+	var session service.TotpSetupSession
+	if err := json.Unmarshal(data, &session); err != nil {
+		return nil, fmt.Errorf("unmarshal setup session: %w", err)
+	}
+
+	return &session, nil
+}
+
+// SetSetupSession stores a TOTP setup session
+func (c *TotpCache) SetSetupSession(ctx context.Context, userID int64, session *service.TotpSetupSession, ttl time.Duration) error {
+	key := fmt.Sprintf("%s%d", totpSetupKeyPrefix, userID)
+	data, err := json.Marshal(session)
+	if err != nil {
+		return fmt.Errorf("marshal setup session: %w", err)
+	}
+
+	if err := c.rdb.Set(ctx, key, data, ttl).Err(); err != nil {
+		return fmt.Errorf("set setup session: %w", err)
+	}
+
+	return nil
+}
+
+// DeleteSetupSession deletes a TOTP setup session
+func (c *TotpCache) DeleteSetupSession(ctx context.Context, userID int64) error {
+	key := fmt.Sprintf("%s%d", totpSetupKeyPrefix, userID)
+	return c.rdb.Del(ctx, key).Err()
+}
+
+// GetLoginSession retrieves a TOTP login session
+func (c *TotpCache) GetLoginSession(ctx context.Context, tempToken string) (*service.TotpLoginSession, error) {
+	key := totpLoginKeyPrefix + tempToken
+	data, err := c.rdb.Get(ctx, key).Bytes()
+	if err != nil {
+		if err == redis.Nil {
+			return nil, nil
+		}
+		return nil, fmt.Errorf("get login session: %w", err)
+	}
+
+	var session service.TotpLoginSession
+	if err := json.Unmarshal(data, &session); err != nil {
+		return nil, fmt.Errorf("unmarshal login session: %w", err)
+	}
+
+	return &session, nil
+}
+
+// SetLoginSession stores a TOTP login session
+func (c *TotpCache) SetLoginSession(ctx context.Context, tempToken string, session *service.TotpLoginSession, ttl time.Duration) error {
+	key := totpLoginKeyPrefix + tempToken
+	data, err := json.Marshal(session)
+	if err != nil {
+		return fmt.Errorf("marshal login session: %w", err)
+	}
+
+	if err := c.rdb.Set(ctx, key, data, ttl).Err(); err != nil {
+		return fmt.Errorf("set login session: %w", err)
+	}
+
+	return nil
+}
+
+// DeleteLoginSession deletes a TOTP login session
+func (c *TotpCache) DeleteLoginSession(ctx context.Context, tempToken string) error {
+	key := totpLoginKeyPrefix + tempToken
+	return c.rdb.Del(ctx, key).Err()
+}
+
+// IncrementVerifyAttempts increments the verify attempt counter
+func (c *TotpCache) IncrementVerifyAttempts(ctx context.Context, userID int64) (int, error) {
+	key := fmt.Sprintf("%s%d", totpAttemptsKeyPrefix, userID)
+
+	// Use pipeline for atomic increment and set TTL
+	pipe := c.rdb.Pipeline()
+	incrCmd := pipe.Incr(ctx, key)
+	pipe.Expire(ctx, key, totpAttemptsTTL)
+
+	if _, err := pipe.Exec(ctx); err != nil {
+		return 0, fmt.Errorf("increment verify attempts: %w", err)
+	}
+
+	count, err := incrCmd.Result()
+	if err != nil {
+		return 0, fmt.Errorf("get increment result: %w", err)
+	}
+
+	return int(count), nil
+}
+
+// GetVerifyAttempts gets the current verify attempt count
+func (c *TotpCache) GetVerifyAttempts(ctx context.Context, userID int64) (int, error) {
+	key := fmt.Sprintf("%s%d", totpAttemptsKeyPrefix, userID)
+	count, err := c.rdb.Get(ctx, key).Int()
+	if err != nil {
+		if err == redis.Nil {
+			return 0, nil
+		}
+		return 0, fmt.Errorf("get verify attempts: %w", err)
+	}
+	return count, nil
+}
+
+// ClearVerifyAttempts clears the verify attempt counter
+func (c *TotpCache) ClearVerifyAttempts(ctx context.Context, userID int64) error {
+	key := fmt.Sprintf("%s%d", totpAttemptsKeyPrefix, userID)
+	return c.rdb.Del(ctx, key).Err()
+}

backend/internal/repository/user_repo.go

@@ -7,6 +7,7 @@ import (
 	"fmt"
 	"sort"
 	"strings"
+	"time"
 
 	dbent "github.com/Wei-Shaw/sub2api/ent"
 	dbuser "github.com/Wei-Shaw/sub2api/ent/user"
@@ -466,3 +467,46 @@ func applyUserEntityToService(dst *service.User, src *dbent.User) {
 	dst.CreatedAt = src.CreatedAt
 	dst.UpdatedAt = src.UpdatedAt
 }
+
+// UpdateTotpSecret 更新用户的 TOTP 加密密钥
+func (r *userRepository) UpdateTotpSecret(ctx context.Context, userID int64, encryptedSecret *string) error {
+	client := clientFromContext(ctx, r.client)
+	update := client.User.UpdateOneID(userID)
+	if encryptedSecret == nil {
+		update = update.ClearTotpSecretEncrypted()
+	} else {
+		update = update.SetTotpSecretEncrypted(*encryptedSecret)
+	}
+	_, err := update.Save(ctx)
+	if err != nil {
+		return translatePersistenceError(err, service.ErrUserNotFound, nil)
+	}
+	return nil
+}
+
+// EnableTotp 启用用户的 TOTP 双因素认证
+func (r *userRepository) EnableTotp(ctx context.Context, userID int64) error {
+	client := clientFromContext(ctx, r.client)
+	_, err := client.User.UpdateOneID(userID).
+		SetTotpEnabled(true).
+		SetTotpEnabledAt(time.Now()).
+		Save(ctx)
+	if err != nil {
+		return translatePersistenceError(err, service.ErrUserNotFound, nil)
+	}
+	return nil
+}
+
+// DisableTotp 禁用用户的 TOTP 双因素认证
+func (r *userRepository) DisableTotp(ctx context.Context, userID int64) error {
+	client := clientFromContext(ctx, r.client)
+	_, err := client.User.UpdateOneID(userID).
+		SetTotpEnabled(false).
+		ClearTotpEnabledAt().
+		ClearTotpSecretEncrypted().
+		Save(ctx)
+	if err != nil {
+		return translatePersistenceError(err, service.ErrUserNotFound, nil)
+	}
+	return nil
+}

backend/internal/repository/user_subscription_repo.go

@@ -190,7 +190,7 @@ func (r *userSubscriptionRepository) ListByGroupID(ctx context.Context, groupID
 	return userSubscriptionEntitiesToService(subs), paginationResultFromTotal(int64(total), params), nil
 }
 
-func (r *userSubscriptionRepository) List(ctx context.Context, params pagination.PaginationParams, userID, groupID *int64, status string) ([]service.UserSubscription, *pagination.PaginationResult, error) {
+func (r *userSubscriptionRepository) List(ctx context.Context, params pagination.PaginationParams, userID, groupID *int64, status, sortBy, sortOrder string) ([]service.UserSubscription, *pagination.PaginationResult, error) {
 	client := clientFromContext(ctx, r.client)
 	q := client.UserSubscription.Query()
 	if userID != nil {
@@ -199,7 +199,31 @@ func (r *userSubscriptionRepository) List(ctx context.Context, params pagination
 	if groupID != nil {
 		q = q.Where(usersubscription.GroupIDEQ(*groupID))
 	}
-	if status != "" {
+
+	// Status filtering with real-time expiration check
+	now := time.Now()
+	switch status {
+	case service.SubscriptionStatusActive:
+		// Active: status is active AND not yet expired
+		q = q.Where(
+			usersubscription.StatusEQ(service.SubscriptionStatusActive),
+			usersubscription.ExpiresAtGT(now),
+		)
+	case service.SubscriptionStatusExpired:
+		// Expired: status is expired OR (status is active but already expired)
+		q = q.Where(
+			usersubscription.Or(
+				usersubscription.StatusEQ(service.SubscriptionStatusExpired),
+				usersubscription.And(
+					usersubscription.StatusEQ(service.SubscriptionStatusActive),
+					usersubscription.ExpiresAtLTE(now),
+				),
+			),
+		)
+	case "":
+		// No filter
+	default:
+		// Other status (e.g., revoked)
 		q = q.Where(usersubscription.StatusEQ(status))
 	}
 
@@ -208,11 +232,28 @@ func (r *userSubscriptionRepository) List(ctx context.Context, params pagination
 		return nil, nil, err
 	}
 
+	// Apply sorting
+	q = q.WithUser().WithGroup().WithAssignedByUser()
+
+	// Determine sort field
+	var field string
+	switch sortBy {
+	case "expires_at":
+		field = usersubscription.FieldExpiresAt
+	case "status":
+		field = usersubscription.FieldStatus
+	default:
+		field = usersubscription.FieldCreatedAt
+	}
+
+	// Determine sort order (default: desc)
+	if sortOrder == "asc" && sortBy != "" {
+		q = q.Order(dbent.Asc(field))
+	} else {
+		q = q.Order(dbent.Desc(field))
+	}
+
 	subs, err := q.
-		WithUser().
-		WithGroup().
-		WithAssignedByUser().
-		Order(dbent.Desc(usersubscription.FieldCreatedAt)).
 		Offset(params.Offset()).
 		Limit(params.Limit()).
 		All(ctx)

backend/internal/repository/user_subscription_repo_integration_test.go

@@ -271,7 +271,7 @@ func (s *UserSubscriptionRepoSuite) TestList_NoFilters() {
 	group := s.mustCreateGroup("g-list")
 	s.mustCreateSubscription(user.ID, group.ID, nil)
 
-	subs, page, err := s.repo.List(s.ctx, pagination.PaginationParams{Page: 1, PageSize: 10}, nil, nil, "")
+	subs, page, err := s.repo.List(s.ctx, pagination.PaginationParams{Page: 1, PageSize: 10}, nil, nil, "", "", "")
 	s.Require().NoError(err, "List")
 	s.Require().Len(subs, 1)
 	s.Require().Equal(int64(1), page.Total)
@@ -285,7 +285,7 @@ func (s *UserSubscriptionRepoSuite) TestList_FilterByUserID() {
 	s.mustCreateSubscription(user1.ID, group.ID, nil)
 	s.mustCreateSubscription(user2.ID, group.ID, nil)
 
-	subs, _, err := s.repo.List(s.ctx, pagination.PaginationParams{Page: 1, PageSize: 10}, &user1.ID, nil, "")
+	subs, _, err := s.repo.List(s.ctx, pagination.PaginationParams{Page: 1, PageSize: 10}, &user1.ID, nil, "", "", "")
 	s.Require().NoError(err)
 	s.Require().Len(subs, 1)
 	s.Require().Equal(user1.ID, subs[0].UserID)
@@ -299,7 +299,7 @@ func (s *UserSubscriptionRepoSuite) TestList_FilterByGroupID() {
 	s.mustCreateSubscription(user.ID, g1.ID, nil)
 	s.mustCreateSubscription(user.ID, g2.ID, nil)
 
-	subs, _, err := s.repo.List(s.ctx, pagination.PaginationParams{Page: 1, PageSize: 10}, nil, &g1.ID, "")
+	subs, _, err := s.repo.List(s.ctx, pagination.PaginationParams{Page: 1, PageSize: 10}, nil, &g1.ID, "", "", "")
 	s.Require().NoError(err)
 	s.Require().Len(subs, 1)
 	s.Require().Equal(g1.ID, subs[0].GroupID)
@@ -320,7 +320,7 @@ func (s *UserSubscriptionRepoSuite) TestList_FilterByStatus() {
 		c.SetExpiresAt(time.Now().Add(-24 * time.Hour))
 	})
 
-	subs, _, err := s.repo.List(s.ctx, pagination.PaginationParams{Page: 1, PageSize: 10}, nil, nil, service.SubscriptionStatusExpired)
+	subs, _, err := s.repo.List(s.ctx, pagination.PaginationParams{Page: 1, PageSize: 10}, nil, nil, service.SubscriptionStatusExpired, "", "")
 	s.Require().NoError(err)
 	s.Require().Len(subs, 1)
 	s.Require().Equal(service.SubscriptionStatusExpired, subs[0].Status)

backend/internal/repository/wire.go

@@ -82,6 +82,10 @@ var ProviderSet = wire.NewSet(
 	NewSchedulerCache,
 	NewSchedulerOutboxRepository,
 	NewProxyLatencyCache,
+	NewTotpCache,
+
+	// Encryptors
+	NewAESEncryptor,
 
 	// HTTP service ports (DI Strategy A: return interface directly)
 	NewTurnstileVerifier,

backend/internal/server/api_contract_test.go

@@ -197,7 +197,7 @@ func TestAPIContracts(t *testing.T) {
 						UserID:          1,
 						GroupID:         10,
 						StartsAt:        deps.now,
-						ExpiresAt:       deps.now.Add(24 * time.Hour),
+						ExpiresAt:       time.Date(2099, 1, 2, 3, 4, 5, 0, time.UTC), // 使用未来日期避免 normalizeSubscriptionStatus 标记为过期
 						Status:          service.SubscriptionStatusActive,
 						DailyUsageUSD:   1.23,
 						WeeklyUsageUSD:  2.34,
@@ -222,7 +222,7 @@ func TestAPIContracts(t *testing.T) {
 						"user_id": 1,
 						"group_id": 10,
 						"starts_at": "2025-01-02T03:04:05Z",
-						"expires_at": "2025-01-03T03:04:05Z",
+						"expires_at": "2099-01-02T03:04:05Z",
 						"status": "active",
 						"daily_window_start": null,
 						"weekly_window_start": null,
@@ -452,6 +452,9 @@ func TestAPIContracts(t *testing.T) {
 					"registration_enabled": true,
 					"email_verify_enabled": false,
 					"promo_code_enabled": true,
+					"password_reset_enabled": false,
+					"totp_enabled": false,
+					"totp_encryption_key_configured": false,
 					"smtp_host": "smtp.example.com",
 					"smtp_port": 587,
 					"smtp_username": "user",
@@ -486,7 +489,9 @@ func TestAPIContracts(t *testing.T) {
 					"enable_identity_patch": true,
 					"identity_patch_prompt": "",
 					"home_content": "",
-					"hide_ccs_import_button": false
+					"hide_ccs_import_button": false,
+					"purchase_subscription_enabled": false,
+					"purchase_subscription_url": ""
 				}
 			}`,
 		},
@@ -595,7 +600,7 @@ func newContractDeps(t *testing.T) *contractDeps {
 	settingService := service.NewSettingService(settingRepo, cfg)
 
 	adminService := service.NewAdminService(userRepo, groupRepo, &accountRepo, proxyRepo, apiKeyRepo, redeemRepo, nil, nil, nil, nil)
-	authHandler := handler.NewAuthHandler(cfg, nil, userService, settingService, nil)
+	authHandler := handler.NewAuthHandler(cfg, nil, userService, settingService, nil, nil)
 	apiKeyHandler := handler.NewAPIKeyHandler(apiKeyService)
 	usageHandler := handler.NewUsageHandler(usageService, apiKeyService)
 	adminSettingHandler := adminhandler.NewSettingHandler(settingService, nil, nil, nil)
@@ -754,6 +759,18 @@ func (r *stubUserRepo) RemoveGroupFromAllowedGroups(ctx context.Context, groupID
 	return 0, errors.New("not implemented")
 }
 
+func (r *stubUserRepo) UpdateTotpSecret(ctx context.Context, userID int64, encryptedSecret *string) error {
+	return errors.New("not implemented")
+}
+
+func (r *stubUserRepo) EnableTotp(ctx context.Context, userID int64) error {
+	return errors.New("not implemented")
+}
+
+func (r *stubUserRepo) DisableTotp(ctx context.Context, userID int64) error {
+	return errors.New("not implemented")
+}
+
 type stubApiKeyCache struct{}
 
 func (stubApiKeyCache) GetCreateAttemptCount(ctx context.Context, userID int64) (int, error) {
@@ -1176,7 +1193,7 @@ func (r *stubUserSubscriptionRepo) ListActiveByUserID(ctx context.Context, userI
 func (stubUserSubscriptionRepo) ListByGroupID(ctx context.Context, groupID int64, params pagination.PaginationParams) ([]service.UserSubscription, *pagination.PaginationResult, error) {
 	return nil, nil, errors.New("not implemented")
 }
-func (stubUserSubscriptionRepo) List(ctx context.Context, params pagination.PaginationParams, userID, groupID *int64, status string) ([]service.UserSubscription, *pagination.PaginationResult, error) {
+func (stubUserSubscriptionRepo) List(ctx context.Context, params pagination.PaginationParams, userID, groupID *int64, status, sortBy, sortOrder string) ([]service.UserSubscription, *pagination.PaginationResult, error) {
 	return nil, nil, errors.New("not implemented")
 }
 func (stubUserSubscriptionRepo) ExistsByUserIDAndGroupID(ctx context.Context, userID, groupID int64) (bool, error) {

backend/internal/server/middleware/api_key_auth_test.go

@@ -367,7 +367,7 @@ func (r *stubUserSubscriptionRepo) ListByGroupID(ctx context.Context, groupID in
 	return nil, nil, errors.New("not implemented")
 }
 
-func (r *stubUserSubscriptionRepo) List(ctx context.Context, params pagination.PaginationParams, userID, groupID *int64, status string) ([]service.UserSubscription, *pagination.PaginationResult, error) {
+func (r *stubUserSubscriptionRepo) List(ctx context.Context, params pagination.PaginationParams, userID, groupID *int64, status, sortBy, sortOrder string) ([]service.UserSubscription, *pagination.PaginationResult, error) {
 	return nil, nil, errors.New("not implemented")
 }
 

backend/internal/server/routes/auth.go

@@ -26,11 +26,20 @@ func RegisterAuthRoutes(
 	{
 		auth.POST("/register", h.Auth.Register)
 		auth.POST("/login", h.Auth.Login)
+		auth.POST("/login/2fa", h.Auth.Login2FA)
 		auth.POST("/send-verify-code", h.Auth.SendVerifyCode)
 		// 优惠码验证接口添加速率限制：每分钟最多 10 次（Redis 故障时 fail-close）
 		auth.POST("/validate-promo-code", rateLimiter.LimitWithOptions("validate-promo", 10, time.Minute, middleware.RateLimitOptions{
 			FailureMode: middleware.RateLimitFailClose,
 		}), h.Auth.ValidatePromoCode)
+		// 忘记密码接口添加速率限制：每分钟最多 5 次（Redis 故障时 fail-close）
+		auth.POST("/forgot-password", rateLimiter.LimitWithOptions("forgot-password", 5, time.Minute, middleware.RateLimitOptions{
+			FailureMode: middleware.RateLimitFailClose,
+		}), h.Auth.ForgotPassword)
+		// 重置密码接口添加速率限制：每分钟最多 10 次（Redis 故障时 fail-close）
+		auth.POST("/reset-password", rateLimiter.LimitWithOptions("reset-password", 10, time.Minute, middleware.RateLimitOptions{
+			FailureMode: middleware.RateLimitFailClose,
+		}), h.Auth.ResetPassword)
 		auth.GET("/oauth/linuxdo/start", h.Auth.LinuxDoOAuthStart)
 		auth.GET("/oauth/linuxdo/callback", h.Auth.LinuxDoOAuthCallback)
 	}

backend/internal/server/routes/user.go

@@ -22,6 +22,17 @@ func RegisterUserRoutes(
 			user.GET("/profile", h.User.GetProfile)
 			user.PUT("/password", h.User.ChangePassword)
 			user.PUT("", h.User.UpdateProfile)
+
+			// TOTP 双因素认证
+			totp := user.Group("/totp")
+			{
+				totp.GET("/status", h.Totp.GetStatus)
+				totp.GET("/verification-method", h.Totp.GetVerificationMethod)
+				totp.POST("/send-code", h.Totp.SendVerifyCode)
+				totp.POST("/setup", h.Totp.InitiateSetup)
+				totp.POST("/enable", h.Totp.Enable)
+				totp.POST("/disable", h.Totp.Disable)
+			}
 		}
 
 		// API Key管理

backend/internal/service/admin_service_delete_test.go

@@ -93,6 +93,18 @@ func (s *userRepoStub) RemoveGroupFromAllowedGroups(ctx context.Context, groupID
 	panic("unexpected RemoveGroupFromAllowedGroups call")
 }
 
+func (s *userRepoStub) UpdateTotpSecret(ctx context.Context, userID int64, encryptedSecret *string) error {
+	panic("unexpected UpdateTotpSecret call")
+}
+
+func (s *userRepoStub) EnableTotp(ctx context.Context, userID int64) error {
+	panic("unexpected EnableTotp call")
+}
+
+func (s *userRepoStub) DisableTotp(ctx context.Context, userID int64) error {
+	panic("unexpected DisableTotp call")
+}
+
 type groupRepoStub struct {
 	affectedUserIDs []int64
 	deleteErr       error

backend/internal/service/antigravity_oauth_service.go

@@ -142,12 +142,13 @@ func (s *AntigravityOAuthService) ExchangeCode(ctx context.Context, input *Antig
 		result.Email = userInfo.Email
 	}
 
-	// 获取 project_id（部分账户类型可能没有）
-	loadResp, _, err := client.LoadCodeAssist(ctx, tokenResp.AccessToken)
-	if err != nil {
-		fmt.Printf("[AntigravityOAuth] 警告: 获取 project_id 失败: %v\n", err)
-	} else if loadResp != nil && loadResp.CloudAICompanionProject != "" {
-		result.ProjectID = loadResp.CloudAICompanionProject
+	// 获取 project_id（部分账户类型可能没有），失败时重试
+	projectID, loadErr := s.loadProjectIDWithRetry(ctx, tokenResp.AccessToken, proxyURL, 3)
+	if loadErr != nil {
+		fmt.Printf("[AntigravityOAuth] 警告: 获取 project_id 失败（重试后）: %v\n", loadErr)
+		result.ProjectIDMissing = true
+	} else {
+		result.ProjectID = projectID
 	}
 
 	return result, nil
@@ -237,21 +238,60 @@ func (s *AntigravityOAuthService) RefreshAccountToken(ctx context.Context, accou
 		tokenInfo.Email = existingEmail
 	}
 
-	// 每次刷新都调用 LoadCodeAssist 获取 project_id
-	client := antigravity.NewClient(proxyURL)
-	loadResp, _, err := client.LoadCodeAssist(ctx, tokenInfo.AccessToken)
-	if err != nil || loadResp == nil || loadResp.CloudAICompanionProject == "" {
-		// LoadCodeAssist 失败或返回空，保留原有 project_id，标记缺失
-		existingProjectID := strings.TrimSpace(account.GetCredential("project_id"))
+	// 每次刷新都调用 LoadCodeAssist 获取 project_id，失败时重试
+	existingProjectID := strings.TrimSpace(account.GetCredential("project_id"))
+	projectID, loadErr := s.loadProjectIDWithRetry(ctx, tokenInfo.AccessToken, proxyURL, 3)
+
+	if loadErr != nil {
+		// LoadCodeAssist 失败，保留原有 project_id
 		tokenInfo.ProjectID = existingProjectID
-		tokenInfo.ProjectIDMissing = true
+		// 只有从未获取过 project_id 且本次也获取失败时，才标记为真正缺失
+		// 如果之前有 project_id，本次只是临时故障，不应标记为错误
+		if existingProjectID == "" {
+			tokenInfo.ProjectIDMissing = true
+		}
 	} else {
-		tokenInfo.ProjectID = loadResp.CloudAICompanionProject
+		tokenInfo.ProjectID = projectID
 	}
 
 	return tokenInfo, nil
 }
 
+// loadProjectIDWithRetry 带重试机制获取 project_id
+// 返回 project_id 和错误，失败时会重试指定次数
+func (s *AntigravityOAuthService) loadProjectIDWithRetry(ctx context.Context, accessToken, proxyURL string, maxRetries int) (string, error) {
+	var lastErr error
+
+	for attempt := 0; attempt <= maxRetries; attempt++ {
+		if attempt > 0 {
+			// 指数退避：1s, 2s, 4s
+			backoff := time.Duration(1<<uint(attempt-1)) * time.Second
+			if backoff > 8*time.Second {
+				backoff = 8 * time.Second
+			}
+			time.Sleep(backoff)
+		}
+
+		client := antigravity.NewClient(proxyURL)
+		loadResp, _, err := client.LoadCodeAssist(ctx, accessToken)
+
+		if err == nil && loadResp != nil && loadResp.CloudAICompanionProject != "" {
+			return loadResp.CloudAICompanionProject, nil
+		}
+
+		// 记录错误
+		if err != nil {
+			lastErr = err
+		} else if loadResp == nil {
+			lastErr = fmt.Errorf("LoadCodeAssist 返回空响应")
+		} else {
+			lastErr = fmt.Errorf("LoadCodeAssist 返回空 project_id")
+		}
+	}
+
+	return "", fmt.Errorf("获取 project_id 失败 (重试 %d 次后): %w", maxRetries, lastErr)
+}
+
 // BuildAccountCredentials 构建账户凭证
 func (s *AntigravityOAuthService) BuildAccountCredentials(tokenInfo *AntigravityTokenInfo) map[string]any {
 	creds := map[string]any{

backend/internal/service/antigravity_token_refresher.go

@@ -3,6 +3,8 @@ package service
 import (
 	"context"
 	"fmt"
+	"log"
+	"strings"
 	"time"
 )
 
@@ -55,15 +57,32 @@ func (r *AntigravityTokenRefresher) Refresh(ctx context.Context, account *Accoun
 	}
 
 	newCredentials := r.antigravityOAuthService.BuildAccountCredentials(tokenInfo)
+	// 合并旧的 credentials，保留新 credentials 中不存在的字段
 	for k, v := range account.Credentials {
 		if _, exists := newCredentials[k]; !exists {
 			newCredentials[k] = v
 		}
 	}
 
-	// 如果 project_id 获取失败，返回 credentials 但同时返回错误让账户被标记
+	// 特殊处理 project_id：如果新值为空但旧值非空，保留旧值
+	// 这确保了即使 LoadCodeAssist 失败，project_id 也不会丢失
+	if newProjectID, _ := newCredentials["project_id"].(string); newProjectID == "" {
+		if oldProjectID := strings.TrimSpace(account.GetCredential("project_id")); oldProjectID != "" {
+			newCredentials["project_id"] = oldProjectID
+		}
+	}
+
+	// 如果 project_id 获取失败，只记录警告，不返回错误
+	// LoadCodeAssist 失败可能是临时网络问题，应该允许重试而不是立即标记为不可重试错误
+	// Token 刷新本身是成功的（access_token 和 refresh_token 已更新）
 	if tokenInfo.ProjectIDMissing {
-		return newCredentials, fmt.Errorf("missing_project_id: 账户缺少project id，可能无法使用Antigravity")
+		if tokenInfo.ProjectID != "" {
+			// 有旧的 project_id，本次获取失败，保留旧值
+			log.Printf("[AntigravityTokenRefresher] Account %d: LoadCodeAssist 临时失败，保留旧 project_id", account.ID)
+		} else {
+			// 从未获取过 project_id，本次也失败，但不返回错误以允许下次重试
+			log.Printf("[AntigravityTokenRefresher] Account %d: LoadCodeAssist 失败，project_id 缺失，但 token 已更新，将在下次刷新时重试", account.ID)
+		}
 	}
 
 	return newCredentials, nil

backend/internal/service/auth_service.go

@@ -580,3 +580,149 @@ func (s *AuthService) RefreshToken(ctx context.Context, oldTokenString string) (
 	// 生成新token
 	return s.GenerateToken(user)
 }
+
+// IsPasswordResetEnabled 检查是否启用密码重置功能
+// 要求：必须同时开启邮件验证且 SMTP 配置正确
+func (s *AuthService) IsPasswordResetEnabled(ctx context.Context) bool {
+	if s.settingService == nil {
+		return false
+	}
+	// Must have email verification enabled and SMTP configured
+	if !s.settingService.IsEmailVerifyEnabled(ctx) {
+		return false
+	}
+	return s.settingService.IsPasswordResetEnabled(ctx)
+}
+
+// preparePasswordReset validates the password reset request and returns necessary data
+// Returns (siteName, resetURL, shouldProceed)
+// shouldProceed is false when we should silently return success (to prevent enumeration)
+func (s *AuthService) preparePasswordReset(ctx context.Context, email, frontendBaseURL string) (string, string, bool) {
+	// Check if user exists (but don't reveal this to the caller)
+	user, err := s.userRepo.GetByEmail(ctx, email)
+	if err != nil {
+		if errors.Is(err, ErrUserNotFound) {
+			// Security: Log but don't reveal that user doesn't exist
+			log.Printf("[Auth] Password reset requested for non-existent email: %s", email)
+			return "", "", false
+		}
+		log.Printf("[Auth] Database error checking email for password reset: %v", err)
+		return "", "", false
+	}
+
+	// Check if user is active
+	if !user.IsActive() {
+		log.Printf("[Auth] Password reset requested for inactive user: %s", email)
+		return "", "", false
+	}
+
+	// Get site name
+	siteName := "Sub2API"
+	if s.settingService != nil {
+		siteName = s.settingService.GetSiteName(ctx)
+	}
+
+	// Build reset URL base
+	resetURL := fmt.Sprintf("%s/reset-password", strings.TrimSuffix(frontendBaseURL, "/"))
+
+	return siteName, resetURL, true
+}
+
+// RequestPasswordReset 请求密码重置（同步发送）
+// Security: Returns the same response regardless of whether the email exists (prevent user enumeration)
+func (s *AuthService) RequestPasswordReset(ctx context.Context, email, frontendBaseURL string) error {
+	if !s.IsPasswordResetEnabled(ctx) {
+		return infraerrors.Forbidden("PASSWORD_RESET_DISABLED", "password reset is not enabled")
+	}
+	if s.emailService == nil {
+		return ErrServiceUnavailable
+	}
+
+	siteName, resetURL, shouldProceed := s.preparePasswordReset(ctx, email, frontendBaseURL)
+	if !shouldProceed {
+		return nil // Silent success to prevent enumeration
+	}
+
+	if err := s.emailService.SendPasswordResetEmail(ctx, email, siteName, resetURL); err != nil {
+		log.Printf("[Auth] Failed to send password reset email to %s: %v", email, err)
+		return nil // Silent success to prevent enumeration
+	}
+
+	log.Printf("[Auth] Password reset email sent to: %s", email)
+	return nil
+}
+
+// RequestPasswordResetAsync 异步请求密码重置（队列发送）
+// Security: Returns the same response regardless of whether the email exists (prevent user enumeration)
+func (s *AuthService) RequestPasswordResetAsync(ctx context.Context, email, frontendBaseURL string) error {
+	if !s.IsPasswordResetEnabled(ctx) {
+		return infraerrors.Forbidden("PASSWORD_RESET_DISABLED", "password reset is not enabled")
+	}
+	if s.emailQueueService == nil {
+		return ErrServiceUnavailable
+	}
+
+	siteName, resetURL, shouldProceed := s.preparePasswordReset(ctx, email, frontendBaseURL)
+	if !shouldProceed {
+		return nil // Silent success to prevent enumeration
+	}
+
+	if err := s.emailQueueService.EnqueuePasswordReset(email, siteName, resetURL); err != nil {
+		log.Printf("[Auth] Failed to enqueue password reset email for %s: %v", email, err)
+		return nil // Silent success to prevent enumeration
+	}
+
+	log.Printf("[Auth] Password reset email enqueued for: %s", email)
+	return nil
+}
+
+// ResetPassword 重置密码
+// Security: Increments TokenVersion to invalidate all existing JWT tokens
+func (s *AuthService) ResetPassword(ctx context.Context, email, token, newPassword string) error {
+	// Check if password reset is enabled
+	if !s.IsPasswordResetEnabled(ctx) {
+		return infraerrors.Forbidden("PASSWORD_RESET_DISABLED", "password reset is not enabled")
+	}
+
+	if s.emailService == nil {
+		return ErrServiceUnavailable
+	}
+
+	// Verify and consume the reset token (one-time use)
+	if err := s.emailService.ConsumePasswordResetToken(ctx, email, token); err != nil {
+		return err
+	}
+
+	// Get user
+	user, err := s.userRepo.GetByEmail(ctx, email)
+	if err != nil {
+		if errors.Is(err, ErrUserNotFound) {
+			return ErrInvalidResetToken // Token was valid but user was deleted
+		}
+		log.Printf("[Auth] Database error getting user for password reset: %v", err)
+		return ErrServiceUnavailable
+	}
+
+	// Check if user is active
+	if !user.IsActive() {
+		return ErrUserNotActive
+	}
+
+	// Hash new password
+	hashedPassword, err := s.HashPassword(newPassword)
+	if err != nil {
+		return fmt.Errorf("hash password: %w", err)
+	}
+
+	// Update password and increment TokenVersion
+	user.PasswordHash = hashedPassword
+	user.TokenVersion++ // Invalidate all existing tokens
+
+	if err := s.userRepo.Update(ctx, user); err != nil {
+		log.Printf("[Auth] Database error updating password for user %d: %v", user.ID, err)
+		return ErrServiceUnavailable
+	}
+
+	log.Printf("[Auth] Password reset successful for user: %s", email)
+	return nil
+}

backend/internal/service/auth_service_register_test.go

@@ -71,6 +71,26 @@ func (s *emailCacheStub) DeleteVerificationCode(ctx context.Context, email strin
 	return nil
 }
 
+func (s *emailCacheStub) GetPasswordResetToken(ctx context.Context, email string) (*PasswordResetTokenData, error) {
+	return nil, nil
+}
+
+func (s *emailCacheStub) SetPasswordResetToken(ctx context.Context, email string, data *PasswordResetTokenData, ttl time.Duration) error {
+	return nil
+}
+
+func (s *emailCacheStub) DeletePasswordResetToken(ctx context.Context, email string) error {
+	return nil
+}
+
+func (s *emailCacheStub) IsPasswordResetEmailInCooldown(ctx context.Context, email string) bool {
+	return false
+}
+
+func (s *emailCacheStub) SetPasswordResetEmailCooldown(ctx context.Context, email string, ttl time.Duration) error {
+	return nil
+}
+
 func newAuthService(repo *userRepoStub, settings map[string]string, emailCache EmailCache) *AuthService {
 	cfg := &config.Config{
 		JWT: config.JWTConfig{

backend/internal/service/domain_constants.go

@@ -69,9 +69,10 @@ const LinuxDoConnectSyntheticEmailDomain = "@linuxdo-connect.invalid"
 // Setting keys
 const (
 	// 注册设置
-	SettingKeyRegistrationEnabled = "registration_enabled" // 是否开放注册
-	SettingKeyEmailVerifyEnabled  = "email_verify_enabled" // 是否开启邮件验证
-	SettingKeyPromoCodeEnabled    = "promo_code_enabled"   // 是否启用优惠码功能
+	SettingKeyRegistrationEnabled  = "registration_enabled"   // 是否开放注册
+	SettingKeyEmailVerifyEnabled   = "email_verify_enabled"   // 是否开启邮件验证
+	SettingKeyPromoCodeEnabled     = "promo_code_enabled"     // 是否启用优惠码功能
+	SettingKeyPasswordResetEnabled = "password_reset_enabled" // 是否启用忘记密码功能（需要先开启邮件验证）
 
 	// 邮件服务设置
 	SettingKeySMTPHost     = "smtp_host"      // SMTP服务器地址
@@ -87,6 +88,9 @@ const (
 	SettingKeyTurnstileSiteKey   = "turnstile_site_key"   // Turnstile Site Key
 	SettingKeyTurnstileSecretKey = "turnstile_secret_key" // Turnstile Secret Key
 
+	// TOTP 双因素认证设置
+	SettingKeyTotpEnabled = "totp_enabled" // 是否启用 TOTP 2FA 功能
+
 	// LinuxDo Connect OAuth 登录设置
 	SettingKeyLinuxDoConnectEnabled      = "linuxdo_connect_enabled"
 	SettingKeyLinuxDoConnectClientID     = "linuxdo_connect_client_id"
@@ -94,14 +98,16 @@ const (
 	SettingKeyLinuxDoConnectRedirectURL  = "linuxdo_connect_redirect_url"
 
 	// OEM设置
-	SettingKeySiteName            = "site_name"              // 网站名称
-	SettingKeySiteLogo            = "site_logo"              // 网站Logo (base64)
-	SettingKeySiteSubtitle        = "site_subtitle"          // 网站副标题
-	SettingKeyAPIBaseURL          = "api_base_url"           // API端点地址（用于客户端配置和导入）
-	SettingKeyContactInfo         = "contact_info"           // 客服联系方式
-	SettingKeyDocURL              = "doc_url"                // 文档链接
-	SettingKeyHomeContent         = "home_content"           // 首页内容（支持 Markdown/HTML，或 URL 作为 iframe src）
-	SettingKeyHideCcsImportButton = "hide_ccs_import_button" // 是否隐藏 API Keys 页面的导入 CCS 按钮
+	SettingKeySiteName                    = "site_name"                     // 网站名称
+	SettingKeySiteLogo                    = "site_logo"                     // 网站Logo (base64)
+	SettingKeySiteSubtitle                = "site_subtitle"                 // 网站副标题
+	SettingKeyAPIBaseURL                  = "api_base_url"                  // API端点地址（用于客户端配置和导入）
+	SettingKeyContactInfo                 = "contact_info"                  // 客服联系方式
+	SettingKeyDocURL                      = "doc_url"                       // 文档链接
+	SettingKeyHomeContent                 = "home_content"                  // 首页内容（支持 Markdown/HTML，或 URL 作为 iframe src）
+	SettingKeyHideCcsImportButton         = "hide_ccs_import_button"        // 是否隐藏 API Keys 页面的导入 CCS 按钮
+	SettingKeyPurchaseSubscriptionEnabled = "purchase_subscription_enabled" // 是否展示“购买订阅”页面入口
+	SettingKeyPurchaseSubscriptionURL     = "purchase_subscription_url"     // “购买订阅”页面 URL（作为 iframe src）
 
 	// 默认配置
 	SettingKeyDefaultConcurrency = "default_concurrency" // 新用户默认并发量

backend/internal/service/email_queue_service.go

@@ -8,11 +8,18 @@ import (
 	"time"
 )
 
+// Task type constants
+const (
+	TaskTypeVerifyCode    = "verify_code"
+	TaskTypePasswordReset = "password_reset"
+)
+
 // EmailTask 邮件发送任务
 type EmailTask struct {
 	Email    string
 	SiteName string
-	TaskType string // "verify_code"
+	TaskType string // "verify_code" or "password_reset"
+	ResetURL string // Only used for password_reset task type
 }
 
 // EmailQueueService 异步邮件队列服务
@@ -73,12 +80,18 @@ func (s *EmailQueueService) processTask(workerID int, task EmailTask) {
 	defer cancel()
 
 	switch task.TaskType {
-	case "verify_code":
+	case TaskTypeVerifyCode:
 		if err := s.emailService.SendVerifyCode(ctx, task.Email, task.SiteName); err != nil {
 			log.Printf("[EmailQueue] Worker %d failed to send verify code to %s: %v", workerID, task.Email, err)
 		} else {
 			log.Printf("[EmailQueue] Worker %d sent verify code to %s", workerID, task.Email)
 		}
+	case TaskTypePasswordReset:
+		if err := s.emailService.SendPasswordResetEmailWithCooldown(ctx, task.Email, task.SiteName, task.ResetURL); err != nil {
+			log.Printf("[EmailQueue] Worker %d failed to send password reset to %s: %v", workerID, task.Email, err)
+		} else {
+			log.Printf("[EmailQueue] Worker %d sent password reset to %s", workerID, task.Email)
+		}
 	default:
 		log.Printf("[EmailQueue] Worker %d unknown task type: %s", workerID, task.TaskType)
 	}
@@ -89,7 +102,7 @@ func (s *EmailQueueService) EnqueueVerifyCode(email, siteName string) error {
 	task := EmailTask{
 		Email:    email,
 		SiteName: siteName,
-		TaskType: "verify_code",
+		TaskType: TaskTypeVerifyCode,
 	}
 
 	select {
@@ -101,6 +114,24 @@ func (s *EmailQueueService) EnqueueVerifyCode(email, siteName string) error {
 	}
 }
 
+// EnqueuePasswordReset 将密码重置邮件任务加入队列
+func (s *EmailQueueService) EnqueuePasswordReset(email, siteName, resetURL string) error {
+	task := EmailTask{
+		Email:    email,
+		SiteName: siteName,
+		TaskType: TaskTypePasswordReset,
+		ResetURL: resetURL,
+	}
+
+	select {
+	case s.taskChan <- task:
+		log.Printf("[EmailQueue] Enqueued password reset task for %s", email)
+		return nil
+	default:
+		return fmt.Errorf("email queue is full")
+	}
+}
+
 // Stop 停止队列服务
 func (s *EmailQueueService) Stop() {
 	close(s.stopChan)

backend/internal/service/email_service.go

@@ -3,11 +3,14 @@ package service
 import (
 	"context"
 	"crypto/rand"
+	"crypto/subtle"
 	"crypto/tls"
+	"encoding/hex"
 	"fmt"
 	"log"
 	"math/big"
 	"net/smtp"
+	"net/url"
 	"strconv"
 	"time"
 
@@ -19,6 +22,9 @@ var (
 	ErrInvalidVerifyCode     = infraerrors.BadRequest("INVALID_VERIFY_CODE", "invalid or expired verification code")
 	ErrVerifyCodeTooFrequent = infraerrors.TooManyRequests("VERIFY_CODE_TOO_FREQUENT", "please wait before requesting a new code")
 	ErrVerifyCodeMaxAttempts = infraerrors.TooManyRequests("VERIFY_CODE_MAX_ATTEMPTS", "too many failed attempts, please request a new code")
+
+	// Password reset errors
+	ErrInvalidResetToken = infraerrors.BadRequest("INVALID_RESET_TOKEN", "invalid or expired password reset token")
 )
 
 // EmailCache defines cache operations for email service
@@ -26,6 +32,16 @@ type EmailCache interface {
 	GetVerificationCode(ctx context.Context, email string) (*VerificationCodeData, error)
 	SetVerificationCode(ctx context.Context, email string, data *VerificationCodeData, ttl time.Duration) error
 	DeleteVerificationCode(ctx context.Context, email string) error
+
+	// Password reset token methods
+	GetPasswordResetToken(ctx context.Context, email string) (*PasswordResetTokenData, error)
+	SetPasswordResetToken(ctx context.Context, email string, data *PasswordResetTokenData, ttl time.Duration) error
+	DeletePasswordResetToken(ctx context.Context, email string) error
+
+	// Password reset email cooldown methods
+	// Returns true if in cooldown period (email was sent recently)
+	IsPasswordResetEmailInCooldown(ctx context.Context, email string) bool
+	SetPasswordResetEmailCooldown(ctx context.Context, email string, ttl time.Duration) error
 }
 
 // VerificationCodeData represents verification code data
@@ -35,10 +51,22 @@ type VerificationCodeData struct {
 	CreatedAt time.Time
 }
 
+// PasswordResetTokenData represents password reset token data
+type PasswordResetTokenData struct {
+	Token     string
+	CreatedAt time.Time
+}
+
 const (
 	verifyCodeTTL         = 15 * time.Minute
 	verifyCodeCooldown    = 1 * time.Minute
 	maxVerifyCodeAttempts = 5
+
+	// Password reset token settings
+	passwordResetTokenTTL = 30 * time.Minute
+
+	// Password reset email cooldown (prevent email bombing)
+	passwordResetEmailCooldown = 30 * time.Second
 )
 
 // SMTPConfig SMTP配置
@@ -254,8 +282,8 @@ func (s *EmailService) VerifyCode(ctx context.Context, email, code string) error
 		return ErrVerifyCodeMaxAttempts
 	}
 
-	// 验证码不匹配
-	if data.Code != code {
+	// 验证码不匹配 (constant-time comparison to prevent timing attacks)
+	if subtle.ConstantTimeCompare([]byte(data.Code), []byte(code)) != 1 {
 		data.Attempts++
 		if err := s.cache.SetVerificationCode(ctx, email, data, verifyCodeTTL); err != nil {
 			log.Printf("[Email] Failed to update verification attempt count: %v", err)
@@ -357,3 +385,157 @@ func (s *EmailService) TestSMTPConnectionWithConfig(config *SMTPConfig) error {
 
 	return client.Quit()
 }
+
+// GeneratePasswordResetToken generates a secure 32-byte random token (64 hex characters)
+func (s *EmailService) GeneratePasswordResetToken() (string, error) {
+	bytes := make([]byte, 32)
+	if _, err := rand.Read(bytes); err != nil {
+		return "", err
+	}
+	return hex.EncodeToString(bytes), nil
+}
+
+// SendPasswordResetEmail sends a password reset email with a reset link
+func (s *EmailService) SendPasswordResetEmail(ctx context.Context, email, siteName, resetURL string) error {
+	var token string
+	var needSaveToken bool
+
+	// Check if token already exists
+	existing, err := s.cache.GetPasswordResetToken(ctx, email)
+	if err == nil && existing != nil {
+		// Token exists, reuse it (allows resending email without generating new token)
+		token = existing.Token
+		needSaveToken = false
+	} else {
+		// Generate new token
+		token, err = s.GeneratePasswordResetToken()
+		if err != nil {
+			return fmt.Errorf("generate token: %w", err)
+		}
+		needSaveToken = true
+	}
+
+	// Save token to Redis (only if new token generated)
+	if needSaveToken {
+		data := &PasswordResetTokenData{
+			Token:     token,
+			CreatedAt: time.Now(),
+		}
+		if err := s.cache.SetPasswordResetToken(ctx, email, data, passwordResetTokenTTL); err != nil {
+			return fmt.Errorf("save reset token: %w", err)
+		}
+	}
+
+	// Build full reset URL with URL-encoded token and email
+	fullResetURL := fmt.Sprintf("%s?email=%s&token=%s", resetURL, url.QueryEscape(email), url.QueryEscape(token))
+
+	// Build email content
+	subject := fmt.Sprintf("[%s] 密码重置请求", siteName)
+	body := s.buildPasswordResetEmailBody(fullResetURL, siteName)
+
+	// Send email
+	if err := s.SendEmail(ctx, email, subject, body); err != nil {
+		return fmt.Errorf("send email: %w", err)
+	}
+
+	return nil
+}
+
+// SendPasswordResetEmailWithCooldown sends password reset email with cooldown check (called by queue worker)
+// This method wraps SendPasswordResetEmail with email cooldown to prevent email bombing
+func (s *EmailService) SendPasswordResetEmailWithCooldown(ctx context.Context, email, siteName, resetURL string) error {
+	// Check email cooldown to prevent email bombing
+	if s.cache.IsPasswordResetEmailInCooldown(ctx, email) {
+		log.Printf("[Email] Password reset email skipped (cooldown): %s", email)
+		return nil // Silent success to prevent revealing cooldown to attackers
+	}
+
+	// Send email using core method
+	if err := s.SendPasswordResetEmail(ctx, email, siteName, resetURL); err != nil {
+		return err
+	}
+
+	// Set cooldown marker (Redis TTL handles expiration)
+	if err := s.cache.SetPasswordResetEmailCooldown(ctx, email, passwordResetEmailCooldown); err != nil {
+		log.Printf("[Email] Failed to set password reset cooldown for %s: %v", email, err)
+	}
+
+	return nil
+}
+
+// VerifyPasswordResetToken verifies the password reset token without consuming it
+func (s *EmailService) VerifyPasswordResetToken(ctx context.Context, email, token string) error {
+	data, err := s.cache.GetPasswordResetToken(ctx, email)
+	if err != nil || data == nil {
+		return ErrInvalidResetToken
+	}
+
+	// Use constant-time comparison to prevent timing attacks
+	if subtle.ConstantTimeCompare([]byte(data.Token), []byte(token)) != 1 {
+		return ErrInvalidResetToken
+	}
+
+	return nil
+}
+
+// ConsumePasswordResetToken verifies and deletes the token (one-time use)
+func (s *EmailService) ConsumePasswordResetToken(ctx context.Context, email, token string) error {
+	// Verify first
+	if err := s.VerifyPasswordResetToken(ctx, email, token); err != nil {
+		return err
+	}
+
+	// Delete after verification (one-time use)
+	if err := s.cache.DeletePasswordResetToken(ctx, email); err != nil {
+		log.Printf("[Email] Failed to delete password reset token after consumption: %v", err)
+	}
+	return nil
+}
+
+// buildPasswordResetEmailBody builds the HTML content for password reset email
+func (s *EmailService) buildPasswordResetEmailBody(resetURL, siteName string) string {
+	return fmt.Sprintf(`
+<!DOCTYPE html>
+<html>
+<head>
+    <meta charset="UTF-8">
+    <style>
+        body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif; background-color: #f5f5f5; margin: 0; padding: 20px; }
+        .container { max-width: 600px; margin: 0 auto; background-color: #ffffff; border-radius: 8px; overflow: hidden; box-shadow: 0 2px 8px rgba(0,0,0,0.1); }
+        .header { background: linear-gradient(135deg, #667eea 0%%, #764ba2 100%%); color: white; padding: 30px; text-align: center; }
+        .header h1 { margin: 0; font-size: 24px; }
+        .content { padding: 40px 30px; text-align: center; }
+        .button { display: inline-block; background: linear-gradient(135deg, #667eea 0%%, #764ba2 100%%); color: white; padding: 14px 32px; text-decoration: none; border-radius: 8px; font-size: 16px; font-weight: 600; margin: 20px 0; }
+        .button:hover { opacity: 0.9; }
+        .info { color: #666; font-size: 14px; line-height: 1.6; margin-top: 20px; }
+        .link-fallback { color: #666; font-size: 12px; word-break: break-all; margin-top: 20px; padding: 15px; background-color: #f8f9fa; border-radius: 4px; }
+        .footer { background-color: #f8f9fa; padding: 20px; text-align: center; color: #999; font-size: 12px; }
+        .warning { color: #e74c3c; font-weight: 500; }
+    </style>
+</head>
+<body>
+    <div class="container">
+        <div class="header">
+            <h1>%s</h1>
+        </div>
+        <div class="content">
+            <p style="font-size: 18px; color: #333;">密码重置请求</p>
+            <p style="color: #666;">您已请求重置密码。请点击下方按钮设置新密码：</p>
+            <a href="%s" class="button">重置密码</a>
+            <div class="info">
+                <p>此链接将在 <strong>30 分钟</strong>后失效。</p>
+                <p class="warning">如果您没有请求重置密码，请忽略此邮件。您的密码将保持不变。</p>
+            </div>
+            <div class="link-fallback">
+                <p>如果按钮无法点击，请复制以下链接到浏览器中打开：</p>
+                <p>%s</p>
+            </div>
+        </div>
+        <div class="footer">
+            <p>这是一封自动发送的邮件，请勿回复。</p>
+        </div>
+    </div>
+</body>
+</html>
+`, siteName, resetURL, resetURL)
+}

backend/internal/service/gateway_service.go

@@ -305,6 +305,19 @@ func (s *GatewayService) BindStickySession(ctx context.Context, groupID *int64,
 	return s.cache.SetSessionAccountID(ctx, derefGroupID(groupID), sessionHash, accountID, stickySessionTTL)
 }
 
+// GetCachedSessionAccountID retrieves the account ID bound to a sticky session.
+// Returns 0 if no binding exists or on error.
+func (s *GatewayService) GetCachedSessionAccountID(ctx context.Context, groupID *int64, sessionHash string) (int64, error) {
+	if sessionHash == "" || s.cache == nil {
+		return 0, nil
+	}
+	accountID, err := s.cache.GetSessionAccountID(ctx, derefGroupID(groupID), sessionHash)
+	if err != nil {
+		return 0, err
+	}
+	return accountID, nil
+}
+
 func (s *GatewayService) extractCacheableContent(parsed *ParsedRequest) string {
 	if parsed == nil {
 		return ""
@@ -3359,17 +3372,19 @@ func (s *GatewayService) parseSSEUsage(data string, usage *ClaudeUsage) {
 		} `json:"usage"`
 	}
 	if json.Unmarshal([]byte(data), &msgDelta) == nil && msgDelta.Type == "message_delta" {
-		// output_tokens 总是从 message_delta 获取
-		usage.OutputTokens = msgDelta.Usage.OutputTokens
-
-		// 如果 message_start 中没有值，则从 message_delta 获取（兼容GLM等API）
-		if usage.InputTokens == 0 {
+		// message_delta 仅覆盖存在且非0的字段
+		// 避免覆盖 message_start 中已有的值（如 input_tokens）
+		// Claude API 的 message_delta 通常只包含 output_tokens
+		if msgDelta.Usage.InputTokens > 0 {
 			usage.InputTokens = msgDelta.Usage.InputTokens
 		}
-		if usage.CacheCreationInputTokens == 0 {
+		if msgDelta.Usage.OutputTokens > 0 {
+			usage.OutputTokens = msgDelta.Usage.OutputTokens
+		}
+		if msgDelta.Usage.CacheCreationInputTokens > 0 {
 			usage.CacheCreationInputTokens = msgDelta.Usage.CacheCreationInputTokens
 		}
-		if usage.CacheReadInputTokens == 0 {
+		if msgDelta.Usage.CacheReadInputTokens > 0 {
 			usage.CacheReadInputTokens = msgDelta.Usage.CacheReadInputTokens
 		}
 	}

backend/internal/service/gemini_messages_compat_service.go

@@ -931,6 +931,13 @@ func (s *GeminiMessagesCompatService) Forward(ctx context.Context, c *gin.Contex
 		}
 	}
 
+	// 图片生成计费
+	imageCount := 0
+	imageSize := s.extractImageSize(body)
+	if isImageGenerationModel(originalModel) {
+		imageCount = 1
+	}
+
 	return &ForwardResult{
 		RequestID:    requestID,
 		Usage:        *usage,
@@ -938,6 +945,8 @@ func (s *GeminiMessagesCompatService) Forward(ctx context.Context, c *gin.Contex
 		Stream:       req.Stream,
 		Duration:     time.Since(startTime),
 		FirstTokenMs: firstTokenMs,
+		ImageCount:   imageCount,
+		ImageSize:    imageSize,
 	}, nil
 }
 
@@ -1371,6 +1380,13 @@ func (s *GeminiMessagesCompatService) ForwardNative(ctx context.Context, c *gin.
 		usage = &ClaudeUsage{}
 	}
 
+	// 图片生成计费
+	imageCount := 0
+	imageSize := s.extractImageSize(body)
+	if isImageGenerationModel(originalModel) {
+		imageCount = 1
+	}
+
 	return &ForwardResult{
 		RequestID:    requestID,
 		Usage:        *usage,
@@ -1378,6 +1394,8 @@ func (s *GeminiMessagesCompatService) ForwardNative(ctx context.Context, c *gin.
 		Stream:       stream,
 		Duration:     time.Since(startTime),
 		FirstTokenMs: firstTokenMs,
+		ImageCount:   imageCount,
+		ImageSize:    imageSize,
 	}, nil
 }
 
@@ -1972,6 +1990,7 @@ func collectGeminiSSE(body io.Reader, isOAuth bool) (map[string]any, *ClaudeUsag
 
 	var last map[string]any
 	var lastWithParts map[string]any
+	var collectedTextParts []string // Collect all text parts for aggregation
 	usage := &ClaudeUsage{}
 
 	for {
@@ -1983,7 +2002,7 @@ func collectGeminiSSE(body io.Reader, isOAuth bool) (map[string]any, *ClaudeUsag
 				switch payload {
 				case "", "[DONE]":
 					if payload == "[DONE]" {
-						return pickGeminiCollectResult(last, lastWithParts), usage, nil
+						return mergeCollectedTextParts(pickGeminiCollectResult(last, lastWithParts), collectedTextParts), usage, nil
 					}
 				default:
 					var parsed map[string]any
@@ -2002,6 +2021,12 @@ func collectGeminiSSE(body io.Reader, isOAuth bool) (map[string]any, *ClaudeUsag
 						}
 						if parts := extractGeminiParts(parsed); len(parts) > 0 {
 							lastWithParts = parsed
+							// Collect text from each part for aggregation
+							for _, part := range parts {
+								if text, ok := part["text"].(string); ok && text != "" {
+									collectedTextParts = append(collectedTextParts, text)
+								}
+							}
 						}
 					}
 				}
@@ -2016,7 +2041,7 @@ func collectGeminiSSE(body io.Reader, isOAuth bool) (map[string]any, *ClaudeUsag
 		}
 	}
 
-	return pickGeminiCollectResult(last, lastWithParts), usage, nil
+	return mergeCollectedTextParts(pickGeminiCollectResult(last, lastWithParts), collectedTextParts), usage, nil
 }
 
 func pickGeminiCollectResult(last map[string]any, lastWithParts map[string]any) map[string]any {
@@ -2029,6 +2054,83 @@ func pickGeminiCollectResult(last map[string]any, lastWithParts map[string]any)
 	return map[string]any{}
 }
 
+// mergeCollectedTextParts merges all collected text chunks into the final response.
+// This fixes the issue where non-streaming responses only returned the last chunk
+// instead of the complete aggregated text.
+func mergeCollectedTextParts(response map[string]any, textParts []string) map[string]any {
+	if len(textParts) == 0 {
+		return response
+	}
+
+	// Join all text parts
+	mergedText := strings.Join(textParts, "")
+
+	// Deep copy response
+	result := make(map[string]any)
+	for k, v := range response {
+		result[k] = v
+	}
+
+	// Get or create candidates
+	candidates, ok := result["candidates"].([]any)
+	if !ok || len(candidates) == 0 {
+		candidates = []any{map[string]any{}}
+	}
+
+	// Get first candidate
+	candidate, ok := candidates[0].(map[string]any)
+	if !ok {
+		candidate = make(map[string]any)
+		candidates[0] = candidate
+	}
+
+	// Get or create content
+	content, ok := candidate["content"].(map[string]any)
+	if !ok {
+		content = map[string]any{"role": "model"}
+		candidate["content"] = content
+	}
+
+	// Get existing parts
+	existingParts, ok := content["parts"].([]any)
+	if !ok {
+		existingParts = []any{}
+	}
+
+	// Find and update first text part, or create new one
+	newParts := make([]any, 0, len(existingParts)+1)
+	textUpdated := false
+
+	for _, p := range existingParts {
+		pm, ok := p.(map[string]any)
+		if !ok {
+			newParts = append(newParts, p)
+			continue
+		}
+		if _, hasText := pm["text"]; hasText && !textUpdated {
+			// Replace with merged text
+			newPart := make(map[string]any)
+			for k, v := range pm {
+				newPart[k] = v
+			}
+			newPart["text"] = mergedText
+			newParts = append(newParts, newPart)
+			textUpdated = true
+		} else {
+			newParts = append(newParts, pm)
+		}
+	}
+
+	if !textUpdated {
+		newParts = append([]any{map[string]any{"text": mergedText}}, newParts...)
+	}
+
+	content["parts"] = newParts
+	result["candidates"] = candidates
+
+	return result
+}
+
 type geminiNativeStreamResult struct {
 	usage        *ClaudeUsage
 	firstTokenMs *int
@@ -2947,3 +3049,26 @@ func convertClaudeGenerationConfig(req map[string]any) map[string]any {
 	}
 	return out
 }
+
+// extractImageSize 从 Gemini 请求中提取 image_size 参数
+func (s *GeminiMessagesCompatService) extractImageSize(body []byte) string {
+	var req struct {
+		GenerationConfig *struct {
+			ImageConfig *struct {
+				ImageSize string `json:"imageSize"`
+			} `json:"imageConfig"`
+		} `json:"generationConfig"`
+	}
+	if err := json.Unmarshal(body, &req); err != nil {
+		return "2K"
+	}
+
+	if req.GenerationConfig != nil && req.GenerationConfig.ImageConfig != nil {
+		size := strings.ToUpper(strings.TrimSpace(req.GenerationConfig.ImageConfig.ImageSize))
+		if size == "1K" || size == "2K" || size == "4K" {
+			return size
+		}
+	}
+
+	return "2K"
+}

backend/internal/service/gemini_native_signature_cleaner.go

@@ -0,0 +1,72 @@
+package service
+
+import (
+	"encoding/json"
+)
+
+// CleanGeminiNativeThoughtSignatures 从 Gemini 原生 API 请求中移除 thoughtSignature 字段，
+// 以避免跨账号签名验证错误。
+//
+// 当粘性会话切换账号时（例如原账号异常、不可调度等），旧账号返回的 thoughtSignature
+// 会导致新账号的签名验证失败。通过移除这些签名，让新账号重新生成有效的签名。
+//
+// CleanGeminiNativeThoughtSignatures removes thoughtSignature fields from Gemini native API requests
+// to avoid cross-account signature validation errors.
+//
+// When sticky session switches accounts (e.g., original account becomes unavailable),
+// thoughtSignatures from the old account will cause validation failures on the new account.
+// By removing these signatures, we allow the new account to generate valid signatures.
+func CleanGeminiNativeThoughtSignatures(body []byte) []byte {
+	if len(body) == 0 {
+		return body
+	}
+
+	// 解析 JSON
+	var data any
+	if err := json.Unmarshal(body, &data); err != nil {
+		// 如果解析失败，返回原始 body（可能不是 JSON 或格式不正确）
+		return body
+	}
+
+	// 递归清理 thoughtSignature
+	cleaned := cleanThoughtSignaturesRecursive(data)
+
+	// 重新序列化
+	result, err := json.Marshal(cleaned)
+	if err != nil {
+		// 如果序列化失败，返回原始 body
+		return body
+	}
+
+	return result
+}
+
+// cleanThoughtSignaturesRecursive 递归遍历数据结构，移除所有 thoughtSignature 字段
+func cleanThoughtSignaturesRecursive(data any) any {
+	switch v := data.(type) {
+	case map[string]any:
+		// 创建新的 map，移除 thoughtSignature
+		result := make(map[string]any, len(v))
+		for key, value := range v {
+			// 跳过 thoughtSignature 字段
+			if key == "thoughtSignature" {
+				continue
+			}
+			// 递归处理嵌套结构
+			result[key] = cleanThoughtSignaturesRecursive(value)
+		}
+		return result
+
+	case []any:
+		// 递归处理数组中的每个元素
+		result := make([]any, len(v))
+		for i, item := range v {
+			result[i] = cleanThoughtSignaturesRecursive(item)
+		}
+		return result
+
+	default:
+		// 基本类型（string, number, bool, null）直接返回
+		return v
+	}
+}

backend/internal/service/openai_gateway_service.go

@@ -60,6 +60,92 @@ type OpenAICodexUsageSnapshot struct {
 	UpdatedAt                   string   `json:"updated_at,omitempty"`
 }
 
+// NormalizedCodexLimits contains normalized 5h/7d rate limit data
+type NormalizedCodexLimits struct {
+	Used5hPercent   *float64
+	Reset5hSeconds  *int
+	Window5hMinutes *int
+	Used7dPercent   *float64
+	Reset7dSeconds  *int
+	Window7dMinutes *int
+}
+
+// Normalize converts primary/secondary fields to canonical 5h/7d fields.
+// Strategy: Compare window_minutes to determine which is 5h vs 7d.
+// Returns nil if snapshot is nil or has no useful data.
+func (s *OpenAICodexUsageSnapshot) Normalize() *NormalizedCodexLimits {
+	if s == nil {
+		return nil
+	}
+
+	result := &NormalizedCodexLimits{}
+
+	primaryMins := 0
+	secondaryMins := 0
+	hasPrimaryWindow := false
+	hasSecondaryWindow := false
+
+	if s.PrimaryWindowMinutes != nil {
+		primaryMins = *s.PrimaryWindowMinutes
+		hasPrimaryWindow = true
+	}
+	if s.SecondaryWindowMinutes != nil {
+		secondaryMins = *s.SecondaryWindowMinutes
+		hasSecondaryWindow = true
+	}
+
+	// Determine mapping based on window_minutes
+	use5hFromPrimary := false
+	use7dFromPrimary := false
+
+	if hasPrimaryWindow && hasSecondaryWindow {
+		// Both known: smaller window is 5h, larger is 7d
+		if primaryMins < secondaryMins {
+			use5hFromPrimary = true
+		} else {
+			use7dFromPrimary = true
+		}
+	} else if hasPrimaryWindow {
+		// Only primary known: classify by threshold (<=360 min = 6h -> 5h window)
+		if primaryMins <= 360 {
+			use5hFromPrimary = true
+		} else {
+			use7dFromPrimary = true
+		}
+	} else if hasSecondaryWindow {
+		// Only secondary known: classify by threshold
+		if secondaryMins <= 360 {
+			// 5h from secondary, so primary (if any data) is 7d
+			use7dFromPrimary = true
+		} else {
+			// 7d from secondary, so primary (if any data) is 5h
+			use5hFromPrimary = true
+		}
+	} else {
+		// No window_minutes: fall back to legacy assumption (primary=7d, secondary=5h)
+		use7dFromPrimary = true
+	}
+
+	// Assign values
+	if use5hFromPrimary {
+		result.Used5hPercent = s.PrimaryUsedPercent
+		result.Reset5hSeconds = s.PrimaryResetAfterSeconds
+		result.Window5hMinutes = s.PrimaryWindowMinutes
+		result.Used7dPercent = s.SecondaryUsedPercent
+		result.Reset7dSeconds = s.SecondaryResetAfterSeconds
+		result.Window7dMinutes = s.SecondaryWindowMinutes
+	} else if use7dFromPrimary {
+		result.Used7dPercent = s.PrimaryUsedPercent
+		result.Reset7dSeconds = s.PrimaryResetAfterSeconds
+		result.Window7dMinutes = s.PrimaryWindowMinutes
+		result.Used5hPercent = s.SecondaryUsedPercent
+		result.Reset5hSeconds = s.SecondaryResetAfterSeconds
+		result.Window5hMinutes = s.SecondaryWindowMinutes
+	}
+
+	return result
+}
+
 // OpenAIUsage represents OpenAI API response usage
 type OpenAIUsage struct {
 	InputTokens              int `json:"input_tokens"`
@@ -867,7 +953,7 @@ func (s *OpenAIGatewayService) Forward(ctx context.Context, c *gin.Context, acco
 
 	// Extract and save Codex usage snapshot from response headers (for OAuth accounts)
 	if account.Type == AccountTypeOAuth {
-		if snapshot := extractCodexUsageHeaders(resp.Header); snapshot != nil {
+		if snapshot := ParseCodexRateLimitHeaders(resp.Header); snapshot != nil {
 			s.updateCodexUsageSnapshot(ctx, account.ID, snapshot)
 		}
 	}
@@ -1665,8 +1751,9 @@ func (s *OpenAIGatewayService) RecordUsage(ctx context.Context, input *OpenAIRec
 	return nil
 }
 
-// extractCodexUsageHeaders extracts Codex usage limits from response headers
-func extractCodexUsageHeaders(headers http.Header) *OpenAICodexUsageSnapshot {
+// ParseCodexRateLimitHeaders extracts Codex usage limits from response headers.
+// Exported for use in ratelimit_service when handling OpenAI 429 responses.
+func ParseCodexRateLimitHeaders(headers http.Header) *OpenAICodexUsageSnapshot {
 	snapshot := &OpenAICodexUsageSnapshot{}
 	hasData := false
 
@@ -1740,6 +1827,8 @@ func (s *OpenAIGatewayService) updateCodexUsageSnapshot(ctx context.Context, acc
 
 	// Convert snapshot to map for merging into Extra
 	updates := make(map[string]any)
+
+	// Save raw primary/secondary fields for debugging/tracing
 	if snapshot.PrimaryUsedPercent != nil {
 		updates["codex_primary_used_percent"] = *snapshot.PrimaryUsedPercent
 	}
@@ -1763,109 +1852,25 @@ func (s *OpenAIGatewayService) updateCodexUsageSnapshot(ctx context.Context, acc
 	}
 	updates["codex_usage_updated_at"] = snapshot.UpdatedAt
 
-	// Normalize to canonical 5h/7d fields based on window_minutes
-	// This fixes the issue where OpenAI's primary/secondary naming is reversed
-	// Strategy: Compare the two windows and assign the smaller one to 5h, larger one to 7d
-
-	// IMPORTANT: We can only reliably determine window type from window_minutes field
-	// The reset_after_seconds is remaining time, not window size, so it cannot be used for comparison
-
-	var primaryWindowMins, secondaryWindowMins int
-	var hasPrimaryWindow, hasSecondaryWindow bool
-
-	// Only use window_minutes for reliable window size comparison
-	if snapshot.PrimaryWindowMinutes != nil {
-		primaryWindowMins = *snapshot.PrimaryWindowMinutes
-		hasPrimaryWindow = true
-	}
-
-	if snapshot.SecondaryWindowMinutes != nil {
-		secondaryWindowMins = *snapshot.SecondaryWindowMinutes
-		hasSecondaryWindow = true
-	}
-
-	// Determine which is 5h and which is 7d
-	var use5hFromPrimary, use7dFromPrimary bool
-	var use5hFromSecondary, use7dFromSecondary bool
-
-	if hasPrimaryWindow && hasSecondaryWindow {
-		// Both window sizes known: compare and assign smaller to 5h, larger to 7d
-		if primaryWindowMins < secondaryWindowMins {
-			use5hFromPrimary = true
-			use7dFromSecondary = true
-		} else {
-			use5hFromSecondary = true
-			use7dFromPrimary = true
+	// Normalize to canonical 5h/7d fields
+	if normalized := snapshot.Normalize(); normalized != nil {
+		if normalized.Used5hPercent != nil {
+			updates["codex_5h_used_percent"] = *normalized.Used5hPercent
 		}
-	} else if hasPrimaryWindow {
-		// Only primary window size known: classify by absolute threshold
-		if primaryWindowMins <= 360 {
-			use5hFromPrimary = true
-		} else {
-			use7dFromPrimary = true
+		if normalized.Reset5hSeconds != nil {
+			updates["codex_5h_reset_after_seconds"] = *normalized.Reset5hSeconds
 		}
-	} else if hasSecondaryWindow {
-		// Only secondary window size known: classify by absolute threshold
-		if secondaryWindowMins <= 360 {
-			use5hFromSecondary = true
-		} else {
-			use7dFromSecondary = true
+		if normalized.Window5hMinutes != nil {
+			updates["codex_5h_window_minutes"] = *normalized.Window5hMinutes
 		}
-	} else {
-		// No window_minutes available: cannot reliably determine window types
-		// Fall back to legacy assumption (may be incorrect)
-		// Assume primary=7d, secondary=5h based on historical observation
-		if snapshot.SecondaryUsedPercent != nil || snapshot.SecondaryResetAfterSeconds != nil || snapshot.SecondaryWindowMinutes != nil {
-			use5hFromSecondary = true
+		if normalized.Used7dPercent != nil {
+			updates["codex_7d_used_percent"] = *normalized.Used7dPercent
 		}
-		if snapshot.PrimaryUsedPercent != nil || snapshot.PrimaryResetAfterSeconds != nil || snapshot.PrimaryWindowMinutes != nil {
-			use7dFromPrimary = true
+		if normalized.Reset7dSeconds != nil {
+			updates["codex_7d_reset_after_seconds"] = *normalized.Reset7dSeconds
 		}
-	}
-
-	// Write canonical 5h fields
-	if use5hFromPrimary {
-		if snapshot.PrimaryUsedPercent != nil {
-			updates["codex_5h_used_percent"] = *snapshot.PrimaryUsedPercent
-		}
-		if snapshot.PrimaryResetAfterSeconds != nil {
-			updates["codex_5h_reset_after_seconds"] = *snapshot.PrimaryResetAfterSeconds
-		}
-		if snapshot.PrimaryWindowMinutes != nil {
-			updates["codex_5h_window_minutes"] = *snapshot.PrimaryWindowMinutes
-		}
-	} else if use5hFromSecondary {
-		if snapshot.SecondaryUsedPercent != nil {
-			updates["codex_5h_used_percent"] = *snapshot.SecondaryUsedPercent
-		}
-		if snapshot.SecondaryResetAfterSeconds != nil {
-			updates["codex_5h_reset_after_seconds"] = *snapshot.SecondaryResetAfterSeconds
-		}
-		if snapshot.SecondaryWindowMinutes != nil {
-			updates["codex_5h_window_minutes"] = *snapshot.SecondaryWindowMinutes
-		}
-	}
-
-	// Write canonical 7d fields
-	if use7dFromPrimary {
-		if snapshot.PrimaryUsedPercent != nil {
-			updates["codex_7d_used_percent"] = *snapshot.PrimaryUsedPercent
-		}
-		if snapshot.PrimaryResetAfterSeconds != nil {
-			updates["codex_7d_reset_after_seconds"] = *snapshot.PrimaryResetAfterSeconds
-		}
-		if snapshot.PrimaryWindowMinutes != nil {
-			updates["codex_7d_window_minutes"] = *snapshot.PrimaryWindowMinutes
-		}
-	} else if use7dFromSecondary {
-		if snapshot.SecondaryUsedPercent != nil {
-			updates["codex_7d_used_percent"] = *snapshot.SecondaryUsedPercent
-		}
-		if snapshot.SecondaryResetAfterSeconds != nil {
-			updates["codex_7d_reset_after_seconds"] = *snapshot.SecondaryResetAfterSeconds
-		}
-		if snapshot.SecondaryWindowMinutes != nil {
-			updates["codex_7d_window_minutes"] = *snapshot.SecondaryWindowMinutes
+		if normalized.Window7dMinutes != nil {
+			updates["codex_7d_window_minutes"] = *normalized.Window7dMinutes
 		}
 	}
 

backend/internal/service/openai_oauth_service.go

@@ -2,9 +2,10 @@ package service
 
 import (
 	"context"
-	"fmt"
+	"net/http"
 	"time"
 
+	infraerrors "github.com/Wei-Shaw/sub2api/internal/pkg/errors"
 	"github.com/Wei-Shaw/sub2api/internal/pkg/openai"
 )
 
@@ -35,12 +36,12 @@ func (s *OpenAIOAuthService) GenerateAuthURL(ctx context.Context, proxyID *int64
 	// Generate PKCE values
 	state, err := openai.GenerateState()
 	if err != nil {
-		return nil, fmt.Errorf("failed to generate state: %w", err)
+		return nil, infraerrors.Newf(http.StatusInternalServerError, "OPENAI_OAUTH_STATE_FAILED", "failed to generate state: %v", err)
 	}
 
 	codeVerifier, err := openai.GenerateCodeVerifier()
 	if err != nil {
-		return nil, fmt.Errorf("failed to generate code verifier: %w", err)
+		return nil, infraerrors.Newf(http.StatusInternalServerError, "OPENAI_OAUTH_VERIFIER_FAILED", "failed to generate code verifier: %v", err)
 	}
 
 	codeChallenge := openai.GenerateCodeChallenge(codeVerifier)
@@ -48,14 +49,17 @@ func (s *OpenAIOAuthService) GenerateAuthURL(ctx context.Context, proxyID *int64
 	// Generate session ID
 	sessionID, err := openai.GenerateSessionID()
 	if err != nil {
-		return nil, fmt.Errorf("failed to generate session ID: %w", err)
+		return nil, infraerrors.Newf(http.StatusInternalServerError, "OPENAI_OAUTH_SESSION_FAILED", "failed to generate session ID: %v", err)
 	}
 
 	// Get proxy URL if specified
 	var proxyURL string
 	if proxyID != nil {
 		proxy, err := s.proxyRepo.GetByID(ctx, *proxyID)
-		if err == nil && proxy != nil {
+		if err != nil {
+			return nil, infraerrors.Newf(http.StatusBadRequest, "OPENAI_OAUTH_PROXY_NOT_FOUND", "proxy not found: %v", err)
+		}
+		if proxy != nil {
 			proxyURL = proxy.URL()
 		}
 	}
@@ -110,14 +114,17 @@ func (s *OpenAIOAuthService) ExchangeCode(ctx context.Context, input *OpenAIExch
 	// Get session
 	session, ok := s.sessionStore.Get(input.SessionID)
 	if !ok {
-		return nil, fmt.Errorf("session not found or expired")
+		return nil, infraerrors.New(http.StatusBadRequest, "OPENAI_OAUTH_SESSION_NOT_FOUND", "session not found or expired")
 	}
 
-	// Get proxy URL
+	// Get proxy URL: prefer input.ProxyID, fallback to session.ProxyURL
 	proxyURL := session.ProxyURL
 	if input.ProxyID != nil {
 		proxy, err := s.proxyRepo.GetByID(ctx, *input.ProxyID)
-		if err == nil && proxy != nil {
+		if err != nil {
+			return nil, infraerrors.Newf(http.StatusBadRequest, "OPENAI_OAUTH_PROXY_NOT_FOUND", "proxy not found: %v", err)
+		}
+		if proxy != nil {
 			proxyURL = proxy.URL()
 		}
 	}
@@ -131,7 +138,7 @@ func (s *OpenAIOAuthService) ExchangeCode(ctx context.Context, input *OpenAIExch
 	// Exchange code for token
 	tokenResp, err := s.oauthClient.ExchangeCode(ctx, input.Code, session.CodeVerifier, redirectURI, proxyURL)
 	if err != nil {
-		return nil, fmt.Errorf("failed to exchange code: %w", err)
+		return nil, err
 	}
 
 	// Parse ID token to get user info
@@ -201,12 +208,12 @@ func (s *OpenAIOAuthService) RefreshToken(ctx context.Context, refreshToken stri
 // RefreshAccountToken refreshes token for an OpenAI account
 func (s *OpenAIOAuthService) RefreshAccountToken(ctx context.Context, account *Account) (*OpenAITokenInfo, error) {
 	if !account.IsOpenAI() {
-		return nil, fmt.Errorf("account is not an OpenAI account")
+		return nil, infraerrors.New(http.StatusBadRequest, "OPENAI_OAUTH_INVALID_ACCOUNT", "account is not an OpenAI account")
 	}
 
 	refreshToken := account.GetOpenAIRefreshToken()
 	if refreshToken == "" {
-		return nil, fmt.Errorf("no refresh token available")
+		return nil, infraerrors.New(http.StatusBadRequest, "OPENAI_OAUTH_NO_REFRESH_TOKEN", "no refresh token available")
 	}
 
 	var proxyURL string

backend/internal/service/ratelimit_service.go

@@ -343,9 +343,48 @@ func (s *RateLimitService) handleCustomErrorCode(ctx context.Context, account *A
 // handle429 处理429限流错误
 // 解析响应头获取重置时间，标记账号为限流状态
 func (s *RateLimitService) handle429(ctx context.Context, account *Account, headers http.Header, responseBody []byte) {
-	// 解析重置时间戳
+	// 1. OpenAI 平台：优先尝试解析 x-codex-* 响应头（用于 rate_limit_exceeded）
+	if account.Platform == PlatformOpenAI {
+		if resetAt := s.calculateOpenAI429ResetTime(headers); resetAt != nil {
+			if err := s.accountRepo.SetRateLimited(ctx, account.ID, *resetAt); err != nil {
+				slog.Warn("rate_limit_set_failed", "account_id", account.ID, "error", err)
+				return
+			}
+			slog.Info("openai_account_rate_limited", "account_id", account.ID, "reset_at", *resetAt)
+			return
+		}
+	}
+
+	// 2. 尝试从响应头解析重置时间（Anthropic）
 	resetTimestamp := headers.Get("anthropic-ratelimit-unified-reset")
+
+	// 3. 如果响应头没有，尝试从响应体解析（OpenAI usage_limit_reached, Gemini）
 	if resetTimestamp == "" {
+		switch account.Platform {
+		case PlatformOpenAI:
+			// 尝试解析 OpenAI 的 usage_limit_reached 错误
+			if resetAt := parseOpenAIRateLimitResetTime(responseBody); resetAt != nil {
+				resetTime := time.Unix(*resetAt, 0)
+				if err := s.accountRepo.SetRateLimited(ctx, account.ID, resetTime); err != nil {
+					slog.Warn("rate_limit_set_failed", "account_id", account.ID, "error", err)
+					return
+				}
+				slog.Info("account_rate_limited", "account_id", account.ID, "platform", account.Platform, "reset_at", resetTime, "reset_in", time.Until(resetTime).Truncate(time.Second))
+				return
+			}
+		case PlatformGemini, PlatformAntigravity:
+			// 尝试解析 Gemini 格式（用于其他平台）
+			if resetAt := ParseGeminiRateLimitResetTime(responseBody); resetAt != nil {
+				resetTime := time.Unix(*resetAt, 0)
+				if err := s.accountRepo.SetRateLimited(ctx, account.ID, resetTime); err != nil {
+					slog.Warn("rate_limit_set_failed", "account_id", account.ID, "error", err)
+					return
+				}
+				slog.Info("account_rate_limited", "account_id", account.ID, "platform", account.Platform, "reset_at", resetTime, "reset_in", time.Until(resetTime).Truncate(time.Second))
+				return
+			}
+		}
+
 		// 没有重置时间，使用默认5分钟
 		resetAt := time.Now().Add(5 * time.Minute)
 		if s.shouldScopeClaudeSonnetRateLimit(account, responseBody) {
@@ -356,6 +395,7 @@ func (s *RateLimitService) handle429(ctx context.Context, account *Account, head
 			}
 			return
 		}
+		slog.Warn("rate_limit_no_reset_time", "account_id", account.ID, "platform", account.Platform, "using_default", "5m")
 		if err := s.accountRepo.SetRateLimited(ctx, account.ID, resetAt); err != nil {
 			slog.Warn("rate_limit_set_failed", "account_id", account.ID, "error", err)
 		}
@@ -419,6 +459,108 @@ func (s *RateLimitService) shouldScopeClaudeSonnetRateLimit(account *Account, re
 	return strings.Contains(msg, "sonnet")
 }
 
+// calculateOpenAI429ResetTime 从 OpenAI 429 响应头计算正确的重置时间
+// 返回 nil 表示无法从响应头中确定重置时间
+func (s *RateLimitService) calculateOpenAI429ResetTime(headers http.Header) *time.Time {
+	snapshot := ParseCodexRateLimitHeaders(headers)
+	if snapshot == nil {
+		return nil
+	}
+
+	normalized := snapshot.Normalize()
+	if normalized == nil {
+		return nil
+	}
+
+	now := time.Now()
+
+	// 判断哪个限制被触发（used_percent >= 100）
+	is7dExhausted := normalized.Used7dPercent != nil && *normalized.Used7dPercent >= 100
+	is5hExhausted := normalized.Used5hPercent != nil && *normalized.Used5hPercent >= 100
+
+	// 优先使用被触发限制的重置时间
+	if is7dExhausted && normalized.Reset7dSeconds != nil {
+		resetAt := now.Add(time.Duration(*normalized.Reset7dSeconds) * time.Second)
+		slog.Info("openai_429_7d_limit_exhausted", "reset_after_seconds", *normalized.Reset7dSeconds, "reset_at", resetAt)
+		return &resetAt
+	}
+	if is5hExhausted && normalized.Reset5hSeconds != nil {
+		resetAt := now.Add(time.Duration(*normalized.Reset5hSeconds) * time.Second)
+		slog.Info("openai_429_5h_limit_exhausted", "reset_after_seconds", *normalized.Reset5hSeconds, "reset_at", resetAt)
+		return &resetAt
+	}
+
+	// 都未达到100%但收到429，使用较长的重置时间
+	var maxResetSecs int
+	if normalized.Reset7dSeconds != nil && *normalized.Reset7dSeconds > maxResetSecs {
+		maxResetSecs = *normalized.Reset7dSeconds
+	}
+	if normalized.Reset5hSeconds != nil && *normalized.Reset5hSeconds > maxResetSecs {
+		maxResetSecs = *normalized.Reset5hSeconds
+	}
+	if maxResetSecs > 0 {
+		resetAt := now.Add(time.Duration(maxResetSecs) * time.Second)
+		slog.Info("openai_429_using_max_reset", "max_reset_seconds", maxResetSecs, "reset_at", resetAt)
+		return &resetAt
+	}
+
+	return nil
+}
+
+// parseOpenAIRateLimitResetTime 解析 OpenAI 格式的 429 响应，返回重置时间的 Unix 时间戳
+// OpenAI 的 usage_limit_reached 错误格式：
+//
+//	{
+//	  "error": {
+//	    "message": "The usage limit has been reached",
+//	    "type": "usage_limit_reached",
+//	    "resets_at": 1769404154,
+//	    "resets_in_seconds": 133107
+//	  }
+//	}
+func parseOpenAIRateLimitResetTime(body []byte) *int64 {
+	var parsed map[string]any
+	if err := json.Unmarshal(body, &parsed); err != nil {
+		return nil
+	}
+
+	errObj, ok := parsed["error"].(map[string]any)
+	if !ok {
+		return nil
+	}
+
+	// 检查是否为 usage_limit_reached 或 rate_limit_exceeded 类型
+	errType, _ := errObj["type"].(string)
+	if errType != "usage_limit_reached" && errType != "rate_limit_exceeded" {
+		return nil
+	}
+
+	// 优先使用 resets_at（Unix 时间戳）
+	if resetsAt, ok := errObj["resets_at"].(float64); ok {
+		ts := int64(resetsAt)
+		return &ts
+	}
+	if resetsAt, ok := errObj["resets_at"].(string); ok {
+		if ts, err := strconv.ParseInt(resetsAt, 10, 64); err == nil {
+			return &ts
+		}
+	}
+
+	// 如果没有 resets_at，尝试使用 resets_in_seconds
+	if resetsInSeconds, ok := errObj["resets_in_seconds"].(float64); ok {
+		ts := time.Now().Unix() + int64(resetsInSeconds)
+		return &ts
+	}
+	if resetsInSeconds, ok := errObj["resets_in_seconds"].(string); ok {
+		if sec, err := strconv.ParseInt(resetsInSeconds, 10, 64); err == nil {
+			ts := time.Now().Unix() + sec
+			return &ts
+		}
+	}
+
+	return nil
+}
+
 // handle529 处理529过载错误
 // 根据配置设置过载冷却时间
 func (s *RateLimitService) handle529(ctx context.Context, account *Account) {

backend/internal/service/ratelimit_service_openai_test.go

@@ -0,0 +1,364 @@
+package service
+
+import (
+	"net/http"
+	"testing"
+	"time"
+)
+
+func TestCalculateOpenAI429ResetTime_7dExhausted(t *testing.T) {
+	svc := &RateLimitService{}
+
+	// Simulate headers when 7d limit is exhausted (100% used)
+	// Primary = 7d (10080 minutes), Secondary = 5h (300 minutes)
+	headers := http.Header{}
+	headers.Set("x-codex-primary-used-percent", "100")
+	headers.Set("x-codex-primary-reset-after-seconds", "384607") // ~4.5 days
+	headers.Set("x-codex-primary-window-minutes", "10080")       // 7 days
+	headers.Set("x-codex-secondary-used-percent", "3")
+	headers.Set("x-codex-secondary-reset-after-seconds", "17369") // ~4.8 hours
+	headers.Set("x-codex-secondary-window-minutes", "300")        // 5 hours
+
+	before := time.Now()
+	resetAt := svc.calculateOpenAI429ResetTime(headers)
+	after := time.Now()
+
+	if resetAt == nil {
+		t.Fatal("expected non-nil resetAt")
+	}
+
+	// Should be approximately 384607 seconds from now
+	expectedDuration := 384607 * time.Second
+	minExpected := before.Add(expectedDuration)
+	maxExpected := after.Add(expectedDuration)
+
+	if resetAt.Before(minExpected) || resetAt.After(maxExpected) {
+		t.Errorf("resetAt %v not in expected range [%v, %v]", resetAt, minExpected, maxExpected)
+	}
+}
+
+func TestCalculateOpenAI429ResetTime_5hExhausted(t *testing.T) {
+	svc := &RateLimitService{}
+
+	// Simulate headers when 5h limit is exhausted (100% used)
+	headers := http.Header{}
+	headers.Set("x-codex-primary-used-percent", "50")
+	headers.Set("x-codex-primary-reset-after-seconds", "500000")
+	headers.Set("x-codex-primary-window-minutes", "10080") // 7 days
+	headers.Set("x-codex-secondary-used-percent", "100")
+	headers.Set("x-codex-secondary-reset-after-seconds", "3600") // 1 hour
+	headers.Set("x-codex-secondary-window-minutes", "300")       // 5 hours
+
+	before := time.Now()
+	resetAt := svc.calculateOpenAI429ResetTime(headers)
+	after := time.Now()
+
+	if resetAt == nil {
+		t.Fatal("expected non-nil resetAt")
+	}
+
+	// Should be approximately 3600 seconds from now
+	expectedDuration := 3600 * time.Second
+	minExpected := before.Add(expectedDuration)
+	maxExpected := after.Add(expectedDuration)
+
+	if resetAt.Before(minExpected) || resetAt.After(maxExpected) {
+		t.Errorf("resetAt %v not in expected range [%v, %v]", resetAt, minExpected, maxExpected)
+	}
+}
+
+func TestCalculateOpenAI429ResetTime_NeitherExhausted_UsesMax(t *testing.T) {
+	svc := &RateLimitService{}
+
+	// Neither limit at 100%, should use the longer reset time
+	headers := http.Header{}
+	headers.Set("x-codex-primary-used-percent", "80")
+	headers.Set("x-codex-primary-reset-after-seconds", "100000")
+	headers.Set("x-codex-primary-window-minutes", "10080")
+	headers.Set("x-codex-secondary-used-percent", "90")
+	headers.Set("x-codex-secondary-reset-after-seconds", "5000")
+	headers.Set("x-codex-secondary-window-minutes", "300")
+
+	before := time.Now()
+	resetAt := svc.calculateOpenAI429ResetTime(headers)
+	after := time.Now()
+
+	if resetAt == nil {
+		t.Fatal("expected non-nil resetAt")
+	}
+
+	// Should use the max (100000 seconds from 7d window)
+	expectedDuration := 100000 * time.Second
+	minExpected := before.Add(expectedDuration)
+	maxExpected := after.Add(expectedDuration)
+
+	if resetAt.Before(minExpected) || resetAt.After(maxExpected) {
+		t.Errorf("resetAt %v not in expected range [%v, %v]", resetAt, minExpected, maxExpected)
+	}
+}
+
+func TestCalculateOpenAI429ResetTime_NoCodexHeaders(t *testing.T) {
+	svc := &RateLimitService{}
+
+	// No codex headers at all
+	headers := http.Header{}
+	headers.Set("content-type", "application/json")
+
+	resetAt := svc.calculateOpenAI429ResetTime(headers)
+
+	if resetAt != nil {
+		t.Errorf("expected nil resetAt when no codex headers, got %v", resetAt)
+	}
+}
+
+func TestCalculateOpenAI429ResetTime_ReversedWindowOrder(t *testing.T) {
+	svc := &RateLimitService{}
+
+	// Test when OpenAI sends primary as 5h and secondary as 7d (reversed)
+	headers := http.Header{}
+	headers.Set("x-codex-primary-used-percent", "100")         // This is 5h
+	headers.Set("x-codex-primary-reset-after-seconds", "3600") // 1 hour
+	headers.Set("x-codex-primary-window-minutes", "300")       // 5 hours - smaller!
+	headers.Set("x-codex-secondary-used-percent", "50")
+	headers.Set("x-codex-secondary-reset-after-seconds", "500000")
+	headers.Set("x-codex-secondary-window-minutes", "10080") // 7 days - larger!
+
+	before := time.Now()
+	resetAt := svc.calculateOpenAI429ResetTime(headers)
+	after := time.Now()
+
+	if resetAt == nil {
+		t.Fatal("expected non-nil resetAt")
+	}
+
+	// Should correctly identify that primary is 5h (smaller window) and use its reset time
+	expectedDuration := 3600 * time.Second
+	minExpected := before.Add(expectedDuration)
+	maxExpected := after.Add(expectedDuration)
+
+	if resetAt.Before(minExpected) || resetAt.After(maxExpected) {
+		t.Errorf("resetAt %v not in expected range [%v, %v]", resetAt, minExpected, maxExpected)
+	}
+}
+
+func TestNormalizedCodexLimits(t *testing.T) {
+	// Test the Normalize() method directly
+	pUsed := 100.0
+	pReset := 384607
+	pWindow := 10080
+	sUsed := 3.0
+	sReset := 17369
+	sWindow := 300
+
+	snapshot := &OpenAICodexUsageSnapshot{
+		PrimaryUsedPercent:         &pUsed,
+		PrimaryResetAfterSeconds:   &pReset,
+		PrimaryWindowMinutes:       &pWindow,
+		SecondaryUsedPercent:       &sUsed,
+		SecondaryResetAfterSeconds: &sReset,
+		SecondaryWindowMinutes:     &sWindow,
+	}
+
+	normalized := snapshot.Normalize()
+	if normalized == nil {
+		t.Fatal("expected non-nil normalized")
+	}
+
+	// Primary has larger window (10080 > 300), so primary should be 7d
+	if normalized.Used7dPercent == nil || *normalized.Used7dPercent != 100.0 {
+		t.Errorf("expected Used7dPercent=100, got %v", normalized.Used7dPercent)
+	}
+	if normalized.Reset7dSeconds == nil || *normalized.Reset7dSeconds != 384607 {
+		t.Errorf("expected Reset7dSeconds=384607, got %v", normalized.Reset7dSeconds)
+	}
+	if normalized.Used5hPercent == nil || *normalized.Used5hPercent != 3.0 {
+		t.Errorf("expected Used5hPercent=3, got %v", normalized.Used5hPercent)
+	}
+	if normalized.Reset5hSeconds == nil || *normalized.Reset5hSeconds != 17369 {
+		t.Errorf("expected Reset5hSeconds=17369, got %v", normalized.Reset5hSeconds)
+	}
+}
+
+func TestNormalizedCodexLimits_OnlyPrimaryData(t *testing.T) {
+	// Test when only primary has data, no window_minutes
+	pUsed := 80.0
+	pReset := 50000
+
+	snapshot := &OpenAICodexUsageSnapshot{
+		PrimaryUsedPercent:       &pUsed,
+		PrimaryResetAfterSeconds: &pReset,
+		// No window_minutes, no secondary data
+	}
+
+	normalized := snapshot.Normalize()
+	if normalized == nil {
+		t.Fatal("expected non-nil normalized")
+	}
+
+	// Legacy assumption: primary=7d, secondary=5h
+	if normalized.Used7dPercent == nil || *normalized.Used7dPercent != 80.0 {
+		t.Errorf("expected Used7dPercent=80, got %v", normalized.Used7dPercent)
+	}
+	if normalized.Reset7dSeconds == nil || *normalized.Reset7dSeconds != 50000 {
+		t.Errorf("expected Reset7dSeconds=50000, got %v", normalized.Reset7dSeconds)
+	}
+	// Secondary (5h) should be nil
+	if normalized.Used5hPercent != nil {
+		t.Errorf("expected Used5hPercent=nil, got %v", *normalized.Used5hPercent)
+	}
+	if normalized.Reset5hSeconds != nil {
+		t.Errorf("expected Reset5hSeconds=nil, got %v", *normalized.Reset5hSeconds)
+	}
+}
+
+func TestNormalizedCodexLimits_OnlySecondaryData(t *testing.T) {
+	// Test when only secondary has data, no window_minutes
+	sUsed := 60.0
+	sReset := 3000
+
+	snapshot := &OpenAICodexUsageSnapshot{
+		SecondaryUsedPercent:       &sUsed,
+		SecondaryResetAfterSeconds: &sReset,
+		// No window_minutes, no primary data
+	}
+
+	normalized := snapshot.Normalize()
+	if normalized == nil {
+		t.Fatal("expected non-nil normalized")
+	}
+
+	// Legacy assumption: primary=7d, secondary=5h
+	// So secondary goes to 5h
+	if normalized.Used5hPercent == nil || *normalized.Used5hPercent != 60.0 {
+		t.Errorf("expected Used5hPercent=60, got %v", normalized.Used5hPercent)
+	}
+	if normalized.Reset5hSeconds == nil || *normalized.Reset5hSeconds != 3000 {
+		t.Errorf("expected Reset5hSeconds=3000, got %v", normalized.Reset5hSeconds)
+	}
+	// Primary (7d) should be nil
+	if normalized.Used7dPercent != nil {
+		t.Errorf("expected Used7dPercent=nil, got %v", *normalized.Used7dPercent)
+	}
+}
+
+func TestNormalizedCodexLimits_BothDataNoWindowMinutes(t *testing.T) {
+	// Test when both have data but no window_minutes
+	pUsed := 100.0
+	pReset := 400000
+	sUsed := 50.0
+	sReset := 10000
+
+	snapshot := &OpenAICodexUsageSnapshot{
+		PrimaryUsedPercent:         &pUsed,
+		PrimaryResetAfterSeconds:   &pReset,
+		SecondaryUsedPercent:       &sUsed,
+		SecondaryResetAfterSeconds: &sReset,
+		// No window_minutes
+	}
+
+	normalized := snapshot.Normalize()
+	if normalized == nil {
+		t.Fatal("expected non-nil normalized")
+	}
+
+	// Legacy assumption: primary=7d, secondary=5h
+	if normalized.Used7dPercent == nil || *normalized.Used7dPercent != 100.0 {
+		t.Errorf("expected Used7dPercent=100, got %v", normalized.Used7dPercent)
+	}
+	if normalized.Reset7dSeconds == nil || *normalized.Reset7dSeconds != 400000 {
+		t.Errorf("expected Reset7dSeconds=400000, got %v", normalized.Reset7dSeconds)
+	}
+	if normalized.Used5hPercent == nil || *normalized.Used5hPercent != 50.0 {
+		t.Errorf("expected Used5hPercent=50, got %v", normalized.Used5hPercent)
+	}
+	if normalized.Reset5hSeconds == nil || *normalized.Reset5hSeconds != 10000 {
+		t.Errorf("expected Reset5hSeconds=10000, got %v", normalized.Reset5hSeconds)
+	}
+}
+
+func TestHandle429_AnthropicPlatformUnaffected(t *testing.T) {
+	// Verify that Anthropic platform accounts still use the original logic
+	// This test ensures we don't break existing Claude account rate limiting
+
+	svc := &RateLimitService{}
+
+	// Simulate Anthropic 429 headers
+	headers := http.Header{}
+	headers.Set("anthropic-ratelimit-unified-reset", "1737820800") // A future Unix timestamp
+
+	// For Anthropic platform, calculateOpenAI429ResetTime should return nil
+	// because it only handles OpenAI platform
+	resetAt := svc.calculateOpenAI429ResetTime(headers)
+
+	// Should return nil since there are no x-codex-* headers
+	if resetAt != nil {
+		t.Errorf("expected nil for Anthropic headers, got %v", resetAt)
+	}
+}
+
+func TestCalculateOpenAI429ResetTime_UserProvidedScenario(t *testing.T) {
+	// This is the exact scenario from the user:
+	// codex_7d_used_percent: 100
+	// codex_7d_reset_after_seconds: 384607 (约4.5天后重置)
+	// codex_5h_used_percent: 3
+	// codex_5h_reset_after_seconds: 17369 (约4.8小时后重置)
+
+	svc := &RateLimitService{}
+
+	// Simulate headers matching user's data
+	// Note: We need to map the canonical 5h/7d back to primary/secondary
+	// Based on typical OpenAI behavior: primary=7d (larger window), secondary=5h (smaller window)
+	headers := http.Header{}
+	headers.Set("x-codex-primary-used-percent", "100")
+	headers.Set("x-codex-primary-reset-after-seconds", "384607")
+	headers.Set("x-codex-primary-window-minutes", "10080") // 7 days = 10080 minutes
+	headers.Set("x-codex-secondary-used-percent", "3")
+	headers.Set("x-codex-secondary-reset-after-seconds", "17369")
+	headers.Set("x-codex-secondary-window-minutes", "300") // 5 hours = 300 minutes
+
+	before := time.Now()
+	resetAt := svc.calculateOpenAI429ResetTime(headers)
+	after := time.Now()
+
+	if resetAt == nil {
+		t.Fatal("expected non-nil resetAt for user scenario")
+	}
+
+	// Should use the 7d reset time (384607 seconds) since 7d limit is exhausted (100%)
+	expectedDuration := 384607 * time.Second
+	minExpected := before.Add(expectedDuration)
+	maxExpected := after.Add(expectedDuration)
+
+	if resetAt.Before(minExpected) || resetAt.After(maxExpected) {
+		t.Errorf("resetAt %v not in expected range [%v, %v]", resetAt, minExpected, maxExpected)
+	}
+
+	// Verify it's approximately 4.45 days (384607 seconds)
+	duration := resetAt.Sub(before)
+	actualDays := duration.Hours() / 24.0
+
+	// 384607 / 86400 = ~4.45 days
+	if actualDays < 4.4 || actualDays > 4.5 {
+		t.Errorf("expected ~4.45 days, got %.2f days", actualDays)
+	}
+
+	t.Logf("User scenario: reset_at=%v, duration=%.2f days", resetAt, actualDays)
+}
+
+func TestCalculateOpenAI429ResetTime_5MinFallbackWhenNoReset(t *testing.T) {
+	// Test that we return nil when there's used_percent but no reset_after_seconds
+	// This should cause the caller to use the default 5-minute fallback
+
+	svc := &RateLimitService{}
+
+	headers := http.Header{}
+	headers.Set("x-codex-primary-used-percent", "100")
+	// No reset_after_seconds!
+
+	resetAt := svc.calculateOpenAI429ResetTime(headers)
+
+	// Should return nil since there's no reset time available
+	if resetAt != nil {
+		t.Errorf("expected nil when no reset_after_seconds, got %v", resetAt)
+	}
+}

backend/internal/service/setting_service.go

@@ -61,6 +61,8 @@ func (s *SettingService) GetPublicSettings(ctx context.Context) (*PublicSettings
 		SettingKeyRegistrationEnabled,
 		SettingKeyEmailVerifyEnabled,
 		SettingKeyPromoCodeEnabled,
+		SettingKeyPasswordResetEnabled,
+		SettingKeyTotpEnabled,
 		SettingKeyTurnstileEnabled,
 		SettingKeyTurnstileSiteKey,
 		SettingKeySiteName,
@@ -71,6 +73,8 @@ func (s *SettingService) GetPublicSettings(ctx context.Context) (*PublicSettings
 		SettingKeyDocURL,
 		SettingKeyHomeContent,
 		SettingKeyHideCcsImportButton,
+		SettingKeyPurchaseSubscriptionEnabled,
+		SettingKeyPurchaseSubscriptionURL,
 		SettingKeyLinuxDoConnectEnabled,
 	}
 
@@ -86,21 +90,29 @@ func (s *SettingService) GetPublicSettings(ctx context.Context) (*PublicSettings
 		linuxDoEnabled = s.cfg != nil && s.cfg.LinuxDo.Enabled
 	}
 
+	// Password reset requires email verification to be enabled
+	emailVerifyEnabled := settings[SettingKeyEmailVerifyEnabled] == "true"
+	passwordResetEnabled := emailVerifyEnabled && settings[SettingKeyPasswordResetEnabled] == "true"
+
 	return &PublicSettings{
-		RegistrationEnabled: settings[SettingKeyRegistrationEnabled] == "true",
-		EmailVerifyEnabled:  settings[SettingKeyEmailVerifyEnabled] == "true",
-		PromoCodeEnabled:    settings[SettingKeyPromoCodeEnabled] != "false", // 默认启用
-		TurnstileEnabled:    settings[SettingKeyTurnstileEnabled] == "true",
-		TurnstileSiteKey:    settings[SettingKeyTurnstileSiteKey],
-		SiteName:            s.getStringOrDefault(settings, SettingKeySiteName, "Sub2API"),
-		SiteLogo:            settings[SettingKeySiteLogo],
-		SiteSubtitle:        s.getStringOrDefault(settings, SettingKeySiteSubtitle, "Subscription to API Conversion Platform"),
-		APIBaseURL:          settings[SettingKeyAPIBaseURL],
-		ContactInfo:         settings[SettingKeyContactInfo],
-		DocURL:              settings[SettingKeyDocURL],
-		HomeContent:         settings[SettingKeyHomeContent],
-		HideCcsImportButton: settings[SettingKeyHideCcsImportButton] == "true",
-		LinuxDoOAuthEnabled: linuxDoEnabled,
+		RegistrationEnabled:         settings[SettingKeyRegistrationEnabled] == "true",
+		EmailVerifyEnabled:          emailVerifyEnabled,
+		PromoCodeEnabled:            settings[SettingKeyPromoCodeEnabled] != "false", // 默认启用
+		PasswordResetEnabled:        passwordResetEnabled,
+		TotpEnabled:                 settings[SettingKeyTotpEnabled] == "true",
+		TurnstileEnabled:            settings[SettingKeyTurnstileEnabled] == "true",
+		TurnstileSiteKey:            settings[SettingKeyTurnstileSiteKey],
+		SiteName:                    s.getStringOrDefault(settings, SettingKeySiteName, "Sub2API"),
+		SiteLogo:                    settings[SettingKeySiteLogo],
+		SiteSubtitle:                s.getStringOrDefault(settings, SettingKeySiteSubtitle, "Subscription to API Conversion Platform"),
+		APIBaseURL:                  settings[SettingKeyAPIBaseURL],
+		ContactInfo:                 settings[SettingKeyContactInfo],
+		DocURL:                      settings[SettingKeyDocURL],
+		HomeContent:                 settings[SettingKeyHomeContent],
+		HideCcsImportButton:         settings[SettingKeyHideCcsImportButton] == "true",
+		PurchaseSubscriptionEnabled: settings[SettingKeyPurchaseSubscriptionEnabled] == "true",
+		PurchaseSubscriptionURL:     strings.TrimSpace(settings[SettingKeyPurchaseSubscriptionURL]),
+		LinuxDoOAuthEnabled:         linuxDoEnabled,
 	}, nil
 }
 
@@ -125,37 +137,45 @@ func (s *SettingService) GetPublicSettingsForInjection(ctx context.Context) (any
 
 	// Return a struct that matches the frontend's expected format
 	return &struct {
-		RegistrationEnabled bool   `json:"registration_enabled"`
-		EmailVerifyEnabled  bool   `json:"email_verify_enabled"`
-		PromoCodeEnabled    bool   `json:"promo_code_enabled"`
-		TurnstileEnabled    bool   `json:"turnstile_enabled"`
-		TurnstileSiteKey    string `json:"turnstile_site_key,omitempty"`
-		SiteName            string `json:"site_name"`
-		SiteLogo            string `json:"site_logo,omitempty"`
-		SiteSubtitle        string `json:"site_subtitle,omitempty"`
-		APIBaseURL          string `json:"api_base_url,omitempty"`
-		ContactInfo         string `json:"contact_info,omitempty"`
-		DocURL              string `json:"doc_url,omitempty"`
-		HomeContent         string `json:"home_content,omitempty"`
-		HideCcsImportButton bool   `json:"hide_ccs_import_button"`
-		LinuxDoOAuthEnabled bool   `json:"linuxdo_oauth_enabled"`
-		Version             string `json:"version,omitempty"`
+		RegistrationEnabled         bool   `json:"registration_enabled"`
+		EmailVerifyEnabled          bool   `json:"email_verify_enabled"`
+		PromoCodeEnabled            bool   `json:"promo_code_enabled"`
+		PasswordResetEnabled        bool   `json:"password_reset_enabled"`
+		TotpEnabled                 bool   `json:"totp_enabled"`
+		TurnstileEnabled            bool   `json:"turnstile_enabled"`
+		TurnstileSiteKey            string `json:"turnstile_site_key,omitempty"`
+		SiteName                    string `json:"site_name"`
+		SiteLogo                    string `json:"site_logo,omitempty"`
+		SiteSubtitle                string `json:"site_subtitle,omitempty"`
+		APIBaseURL                  string `json:"api_base_url,omitempty"`
+		ContactInfo                 string `json:"contact_info,omitempty"`
+		DocURL                      string `json:"doc_url,omitempty"`
+		HomeContent                 string `json:"home_content,omitempty"`
+		HideCcsImportButton         bool   `json:"hide_ccs_import_button"`
+		PurchaseSubscriptionEnabled bool   `json:"purchase_subscription_enabled"`
+		PurchaseSubscriptionURL     string `json:"purchase_subscription_url,omitempty"`
+		LinuxDoOAuthEnabled         bool   `json:"linuxdo_oauth_enabled"`
+		Version                     string `json:"version,omitempty"`
 	}{
-		RegistrationEnabled: settings.RegistrationEnabled,
-		EmailVerifyEnabled:  settings.EmailVerifyEnabled,
-		PromoCodeEnabled:    settings.PromoCodeEnabled,
-		TurnstileEnabled:    settings.TurnstileEnabled,
-		TurnstileSiteKey:    settings.TurnstileSiteKey,
-		SiteName:            settings.SiteName,
-		SiteLogo:            settings.SiteLogo,
-		SiteSubtitle:        settings.SiteSubtitle,
-		APIBaseURL:          settings.APIBaseURL,
-		ContactInfo:         settings.ContactInfo,
-		DocURL:              settings.DocURL,
-		HomeContent:         settings.HomeContent,
-		HideCcsImportButton: settings.HideCcsImportButton,
-		LinuxDoOAuthEnabled: settings.LinuxDoOAuthEnabled,
-		Version:             s.version,
+		RegistrationEnabled:         settings.RegistrationEnabled,
+		EmailVerifyEnabled:          settings.EmailVerifyEnabled,
+		PromoCodeEnabled:            settings.PromoCodeEnabled,
+		PasswordResetEnabled:        settings.PasswordResetEnabled,
+		TotpEnabled:                 settings.TotpEnabled,
+		TurnstileEnabled:            settings.TurnstileEnabled,
+		TurnstileSiteKey:            settings.TurnstileSiteKey,
+		SiteName:                    settings.SiteName,
+		SiteLogo:                    settings.SiteLogo,
+		SiteSubtitle:                settings.SiteSubtitle,
+		APIBaseURL:                  settings.APIBaseURL,
+		ContactInfo:                 settings.ContactInfo,
+		DocURL:                      settings.DocURL,
+		HomeContent:                 settings.HomeContent,
+		HideCcsImportButton:         settings.HideCcsImportButton,
+		PurchaseSubscriptionEnabled: settings.PurchaseSubscriptionEnabled,
+		PurchaseSubscriptionURL:     settings.PurchaseSubscriptionURL,
+		LinuxDoOAuthEnabled:         settings.LinuxDoOAuthEnabled,
+		Version:                     s.version,
 	}, nil
 }
 
@@ -167,6 +187,8 @@ func (s *SettingService) UpdateSettings(ctx context.Context, settings *SystemSet
 	updates[SettingKeyRegistrationEnabled] = strconv.FormatBool(settings.RegistrationEnabled)
 	updates[SettingKeyEmailVerifyEnabled] = strconv.FormatBool(settings.EmailVerifyEnabled)
 	updates[SettingKeyPromoCodeEnabled] = strconv.FormatBool(settings.PromoCodeEnabled)
+	updates[SettingKeyPasswordResetEnabled] = strconv.FormatBool(settings.PasswordResetEnabled)
+	updates[SettingKeyTotpEnabled] = strconv.FormatBool(settings.TotpEnabled)
 
 	// 邮件服务设置（只有非空才更新密码）
 	updates[SettingKeySMTPHost] = settings.SMTPHost
@@ -203,6 +225,8 @@ func (s *SettingService) UpdateSettings(ctx context.Context, settings *SystemSet
 	updates[SettingKeyDocURL] = settings.DocURL
 	updates[SettingKeyHomeContent] = settings.HomeContent
 	updates[SettingKeyHideCcsImportButton] = strconv.FormatBool(settings.HideCcsImportButton)
+	updates[SettingKeyPurchaseSubscriptionEnabled] = strconv.FormatBool(settings.PurchaseSubscriptionEnabled)
+	updates[SettingKeyPurchaseSubscriptionURL] = strings.TrimSpace(settings.PurchaseSubscriptionURL)
 
 	// 默认配置
 	updates[SettingKeyDefaultConcurrency] = strconv.Itoa(settings.DefaultConcurrency)
@@ -262,6 +286,35 @@ func (s *SettingService) IsPromoCodeEnabled(ctx context.Context) bool {
 	return value != "false"
 }
 
+// IsPasswordResetEnabled 检查是否启用密码重置功能
+// 要求：必须同时开启邮件验证
+func (s *SettingService) IsPasswordResetEnabled(ctx context.Context) bool {
+	// Password reset requires email verification to be enabled
+	if !s.IsEmailVerifyEnabled(ctx) {
+		return false
+	}
+	value, err := s.settingRepo.GetValue(ctx, SettingKeyPasswordResetEnabled)
+	if err != nil {
+		return false // 默认关闭
+	}
+	return value == "true"
+}
+
+// IsTotpEnabled 检查是否启用 TOTP 双因素认证功能
+func (s *SettingService) IsTotpEnabled(ctx context.Context) bool {
+	value, err := s.settingRepo.GetValue(ctx, SettingKeyTotpEnabled)
+	if err != nil {
+		return false // 默认关闭
+	}
+	return value == "true"
+}
+
+// IsTotpEncryptionKeyConfigured 检查 TOTP 加密密钥是否已手动配置
+// 只有手动配置了密钥才允许在管理后台启用 TOTP 功能
+func (s *SettingService) IsTotpEncryptionKeyConfigured() bool {
+	return s.cfg.Totp.EncryptionKeyConfigured
+}
+
 // GetSiteName 获取网站名称
 func (s *SettingService) GetSiteName(ctx context.Context) string {
 	value, err := s.settingRepo.GetValue(ctx, SettingKeySiteName)
@@ -309,15 +362,17 @@ func (s *SettingService) InitializeDefaultSettings(ctx context.Context) error {
 
 	// 初始化默认设置
 	defaults := map[string]string{
-		SettingKeyRegistrationEnabled: "true",
-		SettingKeyEmailVerifyEnabled:  "false",
-		SettingKeyPromoCodeEnabled:    "true", // 默认启用优惠码功能
-		SettingKeySiteName:            "Sub2API",
-		SettingKeySiteLogo:            "",
-		SettingKeyDefaultConcurrency:  strconv.Itoa(s.cfg.Default.UserConcurrency),
-		SettingKeyDefaultBalance:      strconv.FormatFloat(s.cfg.Default.UserBalance, 'f', 8, 64),
-		SettingKeySMTPPort:            "587",
-		SettingKeySMTPUseTLS:          "false",
+		SettingKeyRegistrationEnabled:         "true",
+		SettingKeyEmailVerifyEnabled:          "false",
+		SettingKeyPromoCodeEnabled:            "true", // 默认启用优惠码功能
+		SettingKeySiteName:                    "Sub2API",
+		SettingKeySiteLogo:                    "",
+		SettingKeyPurchaseSubscriptionEnabled: "false",
+		SettingKeyPurchaseSubscriptionURL:     "",
+		SettingKeyDefaultConcurrency:          strconv.Itoa(s.cfg.Default.UserConcurrency),
+		SettingKeyDefaultBalance:              strconv.FormatFloat(s.cfg.Default.UserBalance, 'f', 8, 64),
+		SettingKeySMTPPort:                    "587",
+		SettingKeySMTPUseTLS:                  "false",
 		// Model fallback defaults
 		SettingKeyEnableModelFallback:      "false",
 		SettingKeyFallbackModelAnthropic:   "claude-3-5-sonnet-20241022",
@@ -340,10 +395,13 @@ func (s *SettingService) InitializeDefaultSettings(ctx context.Context) error {
 
 // parseSettings 解析设置到结构体
 func (s *SettingService) parseSettings(settings map[string]string) *SystemSettings {
+	emailVerifyEnabled := settings[SettingKeyEmailVerifyEnabled] == "true"
 	result := &SystemSettings{
 		RegistrationEnabled:          settings[SettingKeyRegistrationEnabled] == "true",
-		EmailVerifyEnabled:           settings[SettingKeyEmailVerifyEnabled] == "true",
+		EmailVerifyEnabled:           emailVerifyEnabled,
 		PromoCodeEnabled:             settings[SettingKeyPromoCodeEnabled] != "false", // 默认启用
+		PasswordResetEnabled:         emailVerifyEnabled && settings[SettingKeyPasswordResetEnabled] == "true",
+		TotpEnabled:                  settings[SettingKeyTotpEnabled] == "true",
 		SMTPHost:                     settings[SettingKeySMTPHost],
 		SMTPUsername:                 settings[SettingKeySMTPUsername],
 		SMTPFrom:                     settings[SettingKeySMTPFrom],
@@ -361,6 +419,8 @@ func (s *SettingService) parseSettings(settings map[string]string) *SystemSettin
 		DocURL:                       settings[SettingKeyDocURL],
 		HomeContent:                  settings[SettingKeyHomeContent],
 		HideCcsImportButton:          settings[SettingKeyHideCcsImportButton] == "true",
+		PurchaseSubscriptionEnabled:  settings[SettingKeyPurchaseSubscriptionEnabled] == "true",
+		PurchaseSubscriptionURL:      strings.TrimSpace(settings[SettingKeyPurchaseSubscriptionURL]),
 	}
 
 	// 解析整数类型

backend/internal/service/settings_view.go

@@ -1,9 +1,11 @@
 package service
 
 type SystemSettings struct {
-	RegistrationEnabled bool
-	EmailVerifyEnabled  bool
-	PromoCodeEnabled    bool
+	RegistrationEnabled  bool
+	EmailVerifyEnabled   bool
+	PromoCodeEnabled     bool
+	PasswordResetEnabled bool
+	TotpEnabled          bool // TOTP 双因素认证
 
 	SMTPHost               string
 	SMTPPort               int
@@ -26,14 +28,16 @@ type SystemSettings struct {
 	LinuxDoConnectClientSecretConfigured bool
 	LinuxDoConnectRedirectURL            string
 
-	SiteName            string
-	SiteLogo            string
-	SiteSubtitle        string
-	APIBaseURL          string
-	ContactInfo         string
-	DocURL              string
-	HomeContent         string
-	HideCcsImportButton bool
+	SiteName                    string
+	SiteLogo                    string
+	SiteSubtitle                string
+	APIBaseURL                  string
+	ContactInfo                 string
+	DocURL                      string
+	HomeContent                 string
+	HideCcsImportButton         bool
+	PurchaseSubscriptionEnabled bool
+	PurchaseSubscriptionURL     string
 
 	DefaultConcurrency int
 	DefaultBalance     float64
@@ -57,19 +61,25 @@ type SystemSettings struct {
 }
 
 type PublicSettings struct {
-	RegistrationEnabled bool
-	EmailVerifyEnabled  bool
-	PromoCodeEnabled    bool
-	TurnstileEnabled    bool
-	TurnstileSiteKey    string
-	SiteName            string
-	SiteLogo            string
-	SiteSubtitle        string
-	APIBaseURL          string
-	ContactInfo         string
-	DocURL              string
-	HomeContent         string
-	HideCcsImportButton bool
+	RegistrationEnabled  bool
+	EmailVerifyEnabled   bool
+	PromoCodeEnabled     bool
+	PasswordResetEnabled bool
+	TotpEnabled          bool // TOTP 双因素认证
+	TurnstileEnabled     bool
+	TurnstileSiteKey     string
+	SiteName             string
+	SiteLogo             string
+	SiteSubtitle         string
+	APIBaseURL           string
+	ContactInfo          string
+	DocURL               string
+	HomeContent          string
+	HideCcsImportButton  bool
+
+	PurchaseSubscriptionEnabled bool
+	PurchaseSubscriptionURL     string
+
 	LinuxDoOAuthEnabled bool
 	Version             string
 }

backend/internal/service/subscription_expiry_service.go

@@ -0,0 +1,71 @@
+package service
+
+import (
+	"context"
+	"log"
+	"sync"
+	"time"
+)
+
+// SubscriptionExpiryService periodically updates expired subscription status.
+type SubscriptionExpiryService struct {
+	userSubRepo UserSubscriptionRepository
+	interval    time.Duration
+	stopCh      chan struct{}
+	stopOnce    sync.Once
+	wg          sync.WaitGroup
+}
+
+func NewSubscriptionExpiryService(userSubRepo UserSubscriptionRepository, interval time.Duration) *SubscriptionExpiryService {
+	return &SubscriptionExpiryService{
+		userSubRepo: userSubRepo,
+		interval:    interval,
+		stopCh:      make(chan struct{}),
+	}
+}
+
+func (s *SubscriptionExpiryService) Start() {
+	if s == nil || s.userSubRepo == nil || s.interval <= 0 {
+		return
+	}
+	s.wg.Add(1)
+	go func() {
+		defer s.wg.Done()
+		ticker := time.NewTicker(s.interval)
+		defer ticker.Stop()
+
+		s.runOnce()
+		for {
+			select {
+			case <-ticker.C:
+				s.runOnce()
+			case <-s.stopCh:
+				return
+			}
+		}
+	}()
+}
+
+func (s *SubscriptionExpiryService) Stop() {
+	if s == nil {
+		return
+	}
+	s.stopOnce.Do(func() {
+		close(s.stopCh)
+	})
+	s.wg.Wait()
+}
+
+func (s *SubscriptionExpiryService) runOnce() {
+	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+	defer cancel()
+
+	updated, err := s.userSubRepo.BatchUpdateExpiredStatus(ctx)
+	if err != nil {
+		log.Printf("[SubscriptionExpiry] Update expired subscriptions failed: %v", err)
+		return
+	}
+	if updated > 0 {
+		log.Printf("[SubscriptionExpiry] Updated %d expired subscriptions", updated)
+	}
+}

backend/internal/service/subscription_service.go

@@ -324,18 +324,31 @@ func (s *SubscriptionService) ExtendSubscription(ctx context.Context, subscripti
 		days = -MaxValidityDays
 	}
 
+	now := time.Now()
+	isExpired := !sub.ExpiresAt.After(now)
+
+	// 如果订阅已过期，不允许负向调整
+	if isExpired && days < 0 {
+		return nil, infraerrors.BadRequest("CANNOT_SHORTEN_EXPIRED", "cannot shorten an expired subscription")
+	}
+
 	// 计算新的过期时间
-	newExpiresAt := sub.ExpiresAt.AddDate(0, 0, days)
+	var newExpiresAt time.Time
+	if isExpired {
+		// 已过期：从当前时间开始增加天数
+		newExpiresAt = now.AddDate(0, 0, days)
+	} else {
+		// 未过期：从原过期时间增加/减少天数
+		newExpiresAt = sub.ExpiresAt.AddDate(0, 0, days)
+	}
+
 	if newExpiresAt.After(MaxExpiresAt) {
 		newExpiresAt = MaxExpiresAt
 	}
 
-	// 如果是缩短（负数），检查新的过期时间必须大于当前时间
-	if days < 0 {
-		now := time.Now()
-		if !newExpiresAt.After(now) {
-			return nil, ErrAdjustWouldExpire
-		}
+	// 检查新的过期时间必须大于当前时间
+	if !newExpiresAt.After(now) {
+		return nil, ErrAdjustWouldExpire
 	}
 
 	if err := s.userSubRepo.ExtendExpiry(ctx, subscriptionID, newExpiresAt); err != nil {
@@ -383,6 +396,7 @@ func (s *SubscriptionService) ListUserSubscriptions(ctx context.Context, userID
 		return nil, err
 	}
 	normalizeExpiredWindows(subs)
+	normalizeSubscriptionStatus(subs)
 	return subs, nil
 }
 
@@ -404,17 +418,19 @@ func (s *SubscriptionService) ListGroupSubscriptions(ctx context.Context, groupI
 		return nil, nil, err
 	}
 	normalizeExpiredWindows(subs)
+	normalizeSubscriptionStatus(subs)
 	return subs, pag, nil
 }
 
-// List 获取所有订阅（分页，支持筛选）
-func (s *SubscriptionService) List(ctx context.Context, page, pageSize int, userID, groupID *int64, status string) ([]UserSubscription, *pagination.PaginationResult, error) {
+// List 获取所有订阅（分页，支持筛选和排序）
+func (s *SubscriptionService) List(ctx context.Context, page, pageSize int, userID, groupID *int64, status, sortBy, sortOrder string) ([]UserSubscription, *pagination.PaginationResult, error) {
 	params := pagination.PaginationParams{Page: page, PageSize: pageSize}
-	subs, pag, err := s.userSubRepo.List(ctx, params, userID, groupID, status)
+	subs, pag, err := s.userSubRepo.List(ctx, params, userID, groupID, status, sortBy, sortOrder)
 	if err != nil {
 		return nil, nil, err
 	}
 	normalizeExpiredWindows(subs)
+	normalizeSubscriptionStatus(subs)
 	return subs, pag, nil
 }
 
@@ -441,6 +457,18 @@ func normalizeExpiredWindows(subs []UserSubscription) {
 	}
 }
 
+// normalizeSubscriptionStatus 根据实际过期时间修正状态（仅影响返回数据，不影响数据库）
+// 这确保前端显示正确的状态，即使定时任务尚未更新数据库
+func normalizeSubscriptionStatus(subs []UserSubscription) {
+	now := time.Now()
+	for i := range subs {
+		sub := &subs[i]
+		if sub.Status == SubscriptionStatusActive && !sub.ExpiresAt.After(now) {
+			sub.Status = SubscriptionStatusExpired
+		}
+	}
+}
+
 // startOfDay 返回给定时间所在日期的零点（保持原时区）
 func startOfDay(t time.Time) time.Time {
 	return time.Date(t.Year(), t.Month(), t.Day(), 0, 0, 0, 0, t.Location())
@@ -659,11 +687,6 @@ func (s *SubscriptionService) GetUserSubscriptionsWithProgress(ctx context.Conte
 	return progresses, nil
 }
 
-// UpdateExpiredSubscriptions 更新过期订阅状态（定时任务调用）
-func (s *SubscriptionService) UpdateExpiredSubscriptions(ctx context.Context) (int64, error) {
-	return s.userSubRepo.BatchUpdateExpiredStatus(ctx)
-}
-
 // ValidateSubscription 验证订阅是否有效
 func (s *SubscriptionService) ValidateSubscription(ctx context.Context, sub *UserSubscription) error {
 	if sub.Status == SubscriptionStatusExpired {

backend/internal/service/token_refresh_service.go

@@ -237,7 +237,8 @@ func (s *TokenRefreshService) refreshWithRetry(ctx context.Context, account *Acc
 }
 
 // isNonRetryableRefreshError 判断是否为不可重试的刷新错误
-// 这些错误通常表示凭证已失效，需要用户重新授权
+// 这些错误通常表示凭证已失效或配置确实缺失，需要用户重新授权
+// 注意：missing_project_id 错误只在真正缺失（从未获取过）时返回，临时获取失败不会返回此错误
 func isNonRetryableRefreshError(err error) bool {
 	if err == nil {
 		return false

backend/internal/service/totp_service.go

@@ -0,0 +1,506 @@
+package service
+
+import (
+	"context"
+	"crypto/rand"
+	"crypto/subtle"
+	"encoding/hex"
+	"fmt"
+	"log/slog"
+	"time"
+
+	"github.com/pquerna/otp/totp"
+
+	infraerrors "github.com/Wei-Shaw/sub2api/internal/pkg/errors"
+)
+
+var (
+	ErrTotpNotEnabled      = infraerrors.BadRequest("TOTP_NOT_ENABLED", "totp feature is not enabled")
+	ErrTotpAlreadyEnabled  = infraerrors.BadRequest("TOTP_ALREADY_ENABLED", "totp is already enabled for this account")
+	ErrTotpNotSetup        = infraerrors.BadRequest("TOTP_NOT_SETUP", "totp is not set up for this account")
+	ErrTotpInvalidCode     = infraerrors.BadRequest("TOTP_INVALID_CODE", "invalid totp code")
+	ErrTotpSetupExpired    = infraerrors.BadRequest("TOTP_SETUP_EXPIRED", "totp setup session expired")
+	ErrTotpTooManyAttempts = infraerrors.TooManyRequests("TOTP_TOO_MANY_ATTEMPTS", "too many verification attempts, please try again later")
+	ErrVerifyCodeRequired  = infraerrors.BadRequest("VERIFY_CODE_REQUIRED", "email verification code is required")
+	ErrPasswordRequired    = infraerrors.BadRequest("PASSWORD_REQUIRED", "password is required")
+)
+
+// TotpCache defines cache operations for TOTP service
+type TotpCache interface {
+	// Setup session methods
+	GetSetupSession(ctx context.Context, userID int64) (*TotpSetupSession, error)
+	SetSetupSession(ctx context.Context, userID int64, session *TotpSetupSession, ttl time.Duration) error
+	DeleteSetupSession(ctx context.Context, userID int64) error
+
+	// Login session methods (for 2FA login flow)
+	GetLoginSession(ctx context.Context, tempToken string) (*TotpLoginSession, error)
+	SetLoginSession(ctx context.Context, tempToken string, session *TotpLoginSession, ttl time.Duration) error
+	DeleteLoginSession(ctx context.Context, tempToken string) error
+
+	// Rate limiting
+	IncrementVerifyAttempts(ctx context.Context, userID int64) (int, error)
+	GetVerifyAttempts(ctx context.Context, userID int64) (int, error)
+	ClearVerifyAttempts(ctx context.Context, userID int64) error
+}
+
+// SecretEncryptor defines encryption operations for TOTP secrets
+type SecretEncryptor interface {
+	Encrypt(plaintext string) (string, error)
+	Decrypt(ciphertext string) (string, error)
+}
+
+// TotpSetupSession represents a TOTP setup session
+type TotpSetupSession struct {
+	Secret     string // Plain text TOTP secret (not encrypted yet)
+	SetupToken string // Random token to verify setup request
+	CreatedAt  time.Time
+}
+
+// TotpLoginSession represents a pending 2FA login session
+type TotpLoginSession struct {
+	UserID      int64
+	Email       string
+	TokenExpiry time.Time
+}
+
+// TotpStatus represents the TOTP status for a user
+type TotpStatus struct {
+	Enabled        bool       `json:"enabled"`
+	EnabledAt      *time.Time `json:"enabled_at,omitempty"`
+	FeatureEnabled bool       `json:"feature_enabled"`
+}
+
+// TotpSetupResponse represents the response for initiating TOTP setup
+type TotpSetupResponse struct {
+	Secret     string `json:"secret"`
+	QRCodeURL  string `json:"qr_code_url"`
+	SetupToken string `json:"setup_token"`
+	Countdown  int    `json:"countdown"` // seconds until setup expires
+}
+
+const (
+	totpSetupTTL    = 5 * time.Minute
+	totpLoginTTL    = 5 * time.Minute
+	totpAttemptsTTL = 15 * time.Minute
+	maxTotpAttempts = 5
+	totpIssuer      = "Sub2API"
+)
+
+// TotpService handles TOTP operations
+type TotpService struct {
+	userRepo          UserRepository
+	encryptor         SecretEncryptor
+	cache             TotpCache
+	settingService    *SettingService
+	emailService      *EmailService
+	emailQueueService *EmailQueueService
+}
+
+// NewTotpService creates a new TOTP service
+func NewTotpService(
+	userRepo UserRepository,
+	encryptor SecretEncryptor,
+	cache TotpCache,
+	settingService *SettingService,
+	emailService *EmailService,
+	emailQueueService *EmailQueueService,
+) *TotpService {
+	return &TotpService{
+		userRepo:          userRepo,
+		encryptor:         encryptor,
+		cache:             cache,
+		settingService:    settingService,
+		emailService:      emailService,
+		emailQueueService: emailQueueService,
+	}
+}
+
+// GetStatus returns the TOTP status for a user
+func (s *TotpService) GetStatus(ctx context.Context, userID int64) (*TotpStatus, error) {
+	featureEnabled := s.settingService.IsTotpEnabled(ctx)
+
+	user, err := s.userRepo.GetByID(ctx, userID)
+	if err != nil {
+		return nil, fmt.Errorf("get user: %w", err)
+	}
+
+	return &TotpStatus{
+		Enabled:        user.TotpEnabled,
+		EnabledAt:      user.TotpEnabledAt,
+		FeatureEnabled: featureEnabled,
+	}, nil
+}
+
+// InitiateSetup starts the TOTP setup process
+// If email verification is enabled, emailCode is required; otherwise password is required
+func (s *TotpService) InitiateSetup(ctx context.Context, userID int64, emailCode, password string) (*TotpSetupResponse, error) {
+	// Check if TOTP feature is enabled globally
+	if !s.settingService.IsTotpEnabled(ctx) {
+		return nil, ErrTotpNotEnabled
+	}
+
+	// Get user and check if TOTP is already enabled
+	user, err := s.userRepo.GetByID(ctx, userID)
+	if err != nil {
+		return nil, fmt.Errorf("get user: %w", err)
+	}
+
+	if user.TotpEnabled {
+		return nil, ErrTotpAlreadyEnabled
+	}
+
+	// Verify identity based on email verification setting
+	if s.settingService.IsEmailVerifyEnabled(ctx) {
+		// Email verification enabled - verify email code
+		if emailCode == "" {
+			return nil, ErrVerifyCodeRequired
+		}
+		if err := s.emailService.VerifyCode(ctx, user.Email, emailCode); err != nil {
+			return nil, err
+		}
+	} else {
+		// Email verification disabled - verify password
+		if password == "" {
+			return nil, ErrPasswordRequired
+		}
+		if !user.CheckPassword(password) {
+			return nil, ErrPasswordIncorrect
+		}
+	}
+
+	// Generate a new TOTP key
+	key, err := totp.Generate(totp.GenerateOpts{
+		Issuer:      totpIssuer,
+		AccountName: user.Email,
+	})
+	if err != nil {
+		return nil, fmt.Errorf("generate totp key: %w", err)
+	}
+
+	// Generate a random setup token
+	setupToken, err := generateRandomToken(32)
+	if err != nil {
+		return nil, fmt.Errorf("generate setup token: %w", err)
+	}
+
+	// Store the setup session in cache
+	session := &TotpSetupSession{
+		Secret:     key.Secret(),
+		SetupToken: setupToken,
+		CreatedAt:  time.Now(),
+	}
+
+	if err := s.cache.SetSetupSession(ctx, userID, session, totpSetupTTL); err != nil {
+		return nil, fmt.Errorf("store setup session: %w", err)
+	}
+
+	return &TotpSetupResponse{
+		Secret:     key.Secret(),
+		QRCodeURL:  key.URL(),
+		SetupToken: setupToken,
+		Countdown:  int(totpSetupTTL.Seconds()),
+	}, nil
+}
+
+// CompleteSetup completes the TOTP setup by verifying the code
+func (s *TotpService) CompleteSetup(ctx context.Context, userID int64, totpCode, setupToken string) error {
+	// Check if TOTP feature is enabled globally
+	if !s.settingService.IsTotpEnabled(ctx) {
+		return ErrTotpNotEnabled
+	}
+
+	// Get the setup session
+	session, err := s.cache.GetSetupSession(ctx, userID)
+	if err != nil {
+		return ErrTotpSetupExpired
+	}
+
+	if session == nil {
+		return ErrTotpSetupExpired
+	}
+
+	// Verify the setup token (constant-time comparison)
+	if subtle.ConstantTimeCompare([]byte(session.SetupToken), []byte(setupToken)) != 1 {
+		return ErrTotpSetupExpired
+	}
+
+	// Verify the TOTP code
+	if !totp.Validate(totpCode, session.Secret) {
+		return ErrTotpInvalidCode
+	}
+
+	setupSecretPrefix := "N/A"
+	if len(session.Secret) >= 4 {
+		setupSecretPrefix = session.Secret[:4]
+	}
+	slog.Debug("totp_complete_setup_before_encrypt",
+		"user_id", userID,
+		"secret_len", len(session.Secret),
+		"secret_prefix", setupSecretPrefix)
+
+	// Encrypt the secret
+	encryptedSecret, err := s.encryptor.Encrypt(session.Secret)
+	if err != nil {
+		return fmt.Errorf("encrypt totp secret: %w", err)
+	}
+
+	slog.Debug("totp_complete_setup_encrypted",
+		"user_id", userID,
+		"encrypted_len", len(encryptedSecret))
+
+	// Verify encryption by decrypting
+	decrypted, decErr := s.encryptor.Decrypt(encryptedSecret)
+	if decErr != nil {
+		slog.Debug("totp_complete_setup_verify_failed",
+			"user_id", userID,
+			"error", decErr)
+	} else {
+		decryptedPrefix := "N/A"
+		if len(decrypted) >= 4 {
+			decryptedPrefix = decrypted[:4]
+		}
+		slog.Debug("totp_complete_setup_verified",
+			"user_id", userID,
+			"original_len", len(session.Secret),
+			"decrypted_len", len(decrypted),
+			"match", session.Secret == decrypted,
+			"decrypted_prefix", decryptedPrefix)
+	}
+
+	// Update user with encrypted TOTP secret
+	if err := s.userRepo.UpdateTotpSecret(ctx, userID, &encryptedSecret); err != nil {
+		return fmt.Errorf("update totp secret: %w", err)
+	}
+
+	// Enable TOTP for the user
+	if err := s.userRepo.EnableTotp(ctx, userID); err != nil {
+		return fmt.Errorf("enable totp: %w", err)
+	}
+
+	// Clean up the setup session
+	_ = s.cache.DeleteSetupSession(ctx, userID)
+
+	return nil
+}
+
+// Disable disables TOTP for a user
+// If email verification is enabled, emailCode is required; otherwise password is required
+func (s *TotpService) Disable(ctx context.Context, userID int64, emailCode, password string) error {
+	// Get user
+	user, err := s.userRepo.GetByID(ctx, userID)
+	if err != nil {
+		return fmt.Errorf("get user: %w", err)
+	}
+
+	if !user.TotpEnabled {
+		return ErrTotpNotSetup
+	}
+
+	// Verify identity based on email verification setting
+	if s.settingService.IsEmailVerifyEnabled(ctx) {
+		// Email verification enabled - verify email code
+		if emailCode == "" {
+			return ErrVerifyCodeRequired
+		}
+		if err := s.emailService.VerifyCode(ctx, user.Email, emailCode); err != nil {
+			return err
+		}
+	} else {
+		// Email verification disabled - verify password
+		if password == "" {
+			return ErrPasswordRequired
+		}
+		if !user.CheckPassword(password) {
+			return ErrPasswordIncorrect
+		}
+	}
+
+	// Disable TOTP
+	if err := s.userRepo.DisableTotp(ctx, userID); err != nil {
+		return fmt.Errorf("disable totp: %w", err)
+	}
+
+	return nil
+}
+
+// VerifyCode verifies a TOTP code for a user
+func (s *TotpService) VerifyCode(ctx context.Context, userID int64, code string) error {
+	slog.Debug("totp_verify_code_called",
+		"user_id", userID,
+		"code_len", len(code))
+
+	// Check rate limiting
+	attempts, err := s.cache.GetVerifyAttempts(ctx, userID)
+	if err == nil && attempts >= maxTotpAttempts {
+		return ErrTotpTooManyAttempts
+	}
+
+	// Get user
+	user, err := s.userRepo.GetByID(ctx, userID)
+	if err != nil {
+		slog.Debug("totp_verify_get_user_failed",
+			"user_id", userID,
+			"error", err)
+		return infraerrors.InternalServer("TOTP_VERIFY_ERROR", "failed to verify totp code")
+	}
+
+	if !user.TotpEnabled || user.TotpSecretEncrypted == nil {
+		slog.Debug("totp_verify_not_setup",
+			"user_id", userID,
+			"enabled", user.TotpEnabled,
+			"has_secret", user.TotpSecretEncrypted != nil)
+		return ErrTotpNotSetup
+	}
+
+	slog.Debug("totp_verify_encrypted_secret",
+		"user_id", userID,
+		"encrypted_len", len(*user.TotpSecretEncrypted))
+
+	// Decrypt the secret
+	secret, err := s.encryptor.Decrypt(*user.TotpSecretEncrypted)
+	if err != nil {
+		slog.Debug("totp_verify_decrypt_failed",
+			"user_id", userID,
+			"error", err)
+		return infraerrors.InternalServer("TOTP_VERIFY_ERROR", "failed to verify totp code")
+	}
+
+	secretPrefix := "N/A"
+	if len(secret) >= 4 {
+		secretPrefix = secret[:4]
+	}
+	slog.Debug("totp_verify_decrypted",
+		"user_id", userID,
+		"secret_len", len(secret),
+		"secret_prefix", secretPrefix)
+
+	// Verify the code
+	valid := totp.Validate(code, secret)
+	slog.Debug("totp_verify_result",
+		"user_id", userID,
+		"valid", valid,
+		"secret_len", len(secret),
+		"secret_prefix", secretPrefix,
+		"server_time", time.Now().UTC().Format(time.RFC3339))
+
+	if !valid {
+		// Increment failed attempts
+		_, _ = s.cache.IncrementVerifyAttempts(ctx, userID)
+		return ErrTotpInvalidCode
+	}
+
+	// Clear attempt counter on success
+	_ = s.cache.ClearVerifyAttempts(ctx, userID)
+
+	return nil
+}
+
+// CreateLoginSession creates a temporary login session for 2FA
+func (s *TotpService) CreateLoginSession(ctx context.Context, userID int64, email string) (string, error) {
+	// Generate a random temp token
+	tempToken, err := generateRandomToken(32)
+	if err != nil {
+		return "", fmt.Errorf("generate temp token: %w", err)
+	}
+
+	session := &TotpLoginSession{
+		UserID:      userID,
+		Email:       email,
+		TokenExpiry: time.Now().Add(totpLoginTTL),
+	}
+
+	if err := s.cache.SetLoginSession(ctx, tempToken, session, totpLoginTTL); err != nil {
+		return "", fmt.Errorf("store login session: %w", err)
+	}
+
+	return tempToken, nil
+}
+
+// GetLoginSession retrieves a login session
+func (s *TotpService) GetLoginSession(ctx context.Context, tempToken string) (*TotpLoginSession, error) {
+	return s.cache.GetLoginSession(ctx, tempToken)
+}
+
+// DeleteLoginSession deletes a login session
+func (s *TotpService) DeleteLoginSession(ctx context.Context, tempToken string) error {
+	return s.cache.DeleteLoginSession(ctx, tempToken)
+}
+
+// IsTotpEnabledForUser checks if TOTP is enabled for a specific user
+func (s *TotpService) IsTotpEnabledForUser(ctx context.Context, userID int64) (bool, error) {
+	user, err := s.userRepo.GetByID(ctx, userID)
+	if err != nil {
+		return false, fmt.Errorf("get user: %w", err)
+	}
+	return user.TotpEnabled, nil
+}
+
+// MaskEmail masks an email address for display
+func MaskEmail(email string) string {
+	if len(email) < 3 {
+		return "***"
+	}
+
+	atIdx := -1
+	for i, c := range email {
+		if c == '@' {
+			atIdx = i
+			break
+		}
+	}
+
+	if atIdx == -1 || atIdx < 1 {
+		return email[:1] + "***"
+	}
+
+	localPart := email[:atIdx]
+	domain := email[atIdx:]
+
+	if len(localPart) <= 2 {
+		return localPart[:1] + "***" + domain
+	}
+
+	return localPart[:1] + "***" + localPart[len(localPart)-1:] + domain
+}
+
+// generateRandomToken generates a random hex-encoded token
+func generateRandomToken(byteLength int) (string, error) {
+	b := make([]byte, byteLength)
+	if _, err := rand.Read(b); err != nil {
+		return "", err
+	}
+	return hex.EncodeToString(b), nil
+}
+
+// VerificationMethod represents the method required for TOTP operations
+type VerificationMethod struct {
+	Method string `json:"method"` // "email" or "password"
+}
+
+// GetVerificationMethod returns the verification method for TOTP operations
+func (s *TotpService) GetVerificationMethod(ctx context.Context) *VerificationMethod {
+	if s.settingService.IsEmailVerifyEnabled(ctx) {
+		return &VerificationMethod{Method: "email"}
+	}
+	return &VerificationMethod{Method: "password"}
+}
+
+// SendVerifyCode sends an email verification code for TOTP operations
+func (s *TotpService) SendVerifyCode(ctx context.Context, userID int64) error {
+	// Check if email verification is enabled
+	if !s.settingService.IsEmailVerifyEnabled(ctx) {
+		return infraerrors.BadRequest("EMAIL_VERIFY_NOT_ENABLED", "email verification is not enabled")
+	}
+
+	// Get user email
+	user, err := s.userRepo.GetByID(ctx, userID)
+	if err != nil {
+		return fmt.Errorf("get user: %w", err)
+	}
+
+	// Get site name for email
+	siteName := s.settingService.GetSiteName(ctx)
+
+	// Send verification code via queue
+	return s.emailQueueService.EnqueueVerifyCode(user.Email, siteName)
+}

backend/internal/service/user.go

@@ -21,6 +21,11 @@ type User struct {
 	CreatedAt     time.Time
 	UpdatedAt     time.Time
 
+	// TOTP 双因素认证字段
+	TotpSecretEncrypted *string    // AES-256-GCM 加密的 TOTP 密钥
+	TotpEnabled         bool       // 是否启用 TOTP
+	TotpEnabledAt       *time.Time // TOTP 启用时间
+
 	APIKeys       []APIKey
 	Subscriptions []UserSubscription
 }

backend/internal/service/user_service.go

@@ -38,6 +38,11 @@ type UserRepository interface {
 	UpdateConcurrency(ctx context.Context, id int64, amount int) error
 	ExistsByEmail(ctx context.Context, email string) (bool, error)
 	RemoveGroupFromAllowedGroups(ctx context.Context, groupID int64) (int64, error)
+
+	// TOTP 相关方法
+	UpdateTotpSecret(ctx context.Context, userID int64, encryptedSecret *string) error
+	EnableTotp(ctx context.Context, userID int64) error
+	DisableTotp(ctx context.Context, userID int64) error
 }
 
 // UpdateProfileRequest 更新用户资料请求

backend/internal/service/user_subscription_port.go

@@ -18,7 +18,7 @@ type UserSubscriptionRepository interface {
 	ListByUserID(ctx context.Context, userID int64) ([]UserSubscription, error)
 	ListActiveByUserID(ctx context.Context, userID int64) ([]UserSubscription, error)
 	ListByGroupID(ctx context.Context, groupID int64, params pagination.PaginationParams) ([]UserSubscription, *pagination.PaginationResult, error)
-	List(ctx context.Context, params pagination.PaginationParams, userID, groupID *int64, status string) ([]UserSubscription, *pagination.PaginationResult, error)
+	List(ctx context.Context, params pagination.PaginationParams, userID, groupID *int64, status, sortBy, sortOrder string) ([]UserSubscription, *pagination.PaginationResult, error)
 
 	ExistsByUserIDAndGroupID(ctx context.Context, userID, groupID int64) (bool, error)
 	ExtendExpiry(ctx context.Context, subscriptionID int64, newExpiresAt time.Time) error

backend/internal/service/wire.go

@@ -72,6 +72,13 @@ func ProvideAccountExpiryService(accountRepo AccountRepository) *AccountExpirySe
 	return svc
 }
 
+// ProvideSubscriptionExpiryService creates and starts SubscriptionExpiryService.
+func ProvideSubscriptionExpiryService(userSubRepo UserSubscriptionRepository) *SubscriptionExpiryService {
+	svc := NewSubscriptionExpiryService(userSubRepo, time.Minute)
+	svc.Start()
+	return svc
+}
+
 // ProvideTimingWheelService creates and starts TimingWheelService
 func ProvideTimingWheelService() (*TimingWheelService, error) {
 	svc, err := NewTimingWheelService()
@@ -256,6 +263,7 @@ var ProviderSet = wire.NewSet(
 	ProvideUpdateService,
 	ProvideTokenRefreshService,
 	ProvideAccountExpiryService,
+	ProvideSubscriptionExpiryService,
 	ProvideTimingWheelService,
 	ProvideDashboardAggregationService,
 	ProvideUsageCleanupService,
@@ -263,4 +271,5 @@ var ProviderSet = wire.NewSet(
 	NewAntigravityQuotaFetcher,
 	NewUserAttributeService,
 	NewUsageCache,
+	NewTotpService,
 )

backend/internal/util/urlvalidator/validator.go

@@ -46,7 +46,7 @@ func ValidateURLFormat(raw string, allowInsecureHTTP bool) (string, error) {
 		}
 	}
 
-	return trimmed, nil
+	return strings.TrimRight(trimmed, "/"), nil
 }
 
 func ValidateHTTPSURL(raw string, opts ValidationOptions) (string, error) {

backend/internal/util/urlvalidator/validator_test.go

@@ -21,4 +21,31 @@ func TestValidateURLFormat(t *testing.T) {
 	if _, err := ValidateURLFormat("https://example.com:bad", true); err == nil {
 		t.Fatalf("expected invalid port to fail")
 	}
+
+	// 验证末尾斜杠被移除
+	normalized, err := ValidateURLFormat("https://example.com/", false)
+	if err != nil {
+		t.Fatalf("expected trailing slash url to pass, got %v", err)
+	}
+	if normalized != "https://example.com" {
+		t.Fatalf("expected trailing slash to be removed, got %s", normalized)
+	}
+
+	// 验证多个末尾斜杠被移除
+	normalized, err = ValidateURLFormat("https://example.com///", false)
+	if err != nil {
+		t.Fatalf("expected multiple trailing slashes to pass, got %v", err)
+	}
+	if normalized != "https://example.com" {
+		t.Fatalf("expected all trailing slashes to be removed, got %s", normalized)
+	}
+
+	// 验证带路径的 URL 末尾斜杠被移除
+	normalized, err = ValidateURLFormat("https://example.com/api/v1/", false)
+	if err != nil {
+		t.Fatalf("expected trailing slash url with path to pass, got %v", err)
+	}
+	if normalized != "https://example.com/api/v1" {
+		t.Fatalf("expected trailing slash to be removed from path, got %s", normalized)
+	}
 }

backend/migrations/044_add_user_totp.sql

@@ -0,0 +1,12 @@
+-- 为 users 表添加 TOTP 双因素认证字段
+ALTER TABLE users
+  ADD COLUMN IF NOT EXISTS totp_secret_encrypted TEXT DEFAULT NULL,
+  ADD COLUMN IF NOT EXISTS totp_enabled BOOLEAN NOT NULL DEFAULT FALSE,
+  ADD COLUMN IF NOT EXISTS totp_enabled_at TIMESTAMPTZ DEFAULT NULL;
+
+COMMENT ON COLUMN users.totp_secret_encrypted IS 'AES-256-GCM 加密的 TOTP 密钥';
+COMMENT ON COLUMN users.totp_enabled IS '是否启用 TOTP 双因素认证';
+COMMENT ON COLUMN users.totp_enabled_at IS 'TOTP 启用时间';
+
+-- 创建索引以支持快速查询启用 2FA 的用户
+CREATE INDEX IF NOT EXISTS idx_users_totp_enabled ON users(totp_enabled) WHERE deleted_at IS NULL AND totp_enabled = true;

deploy/.env.example

@@ -61,6 +61,18 @@ ADMIN_PASSWORD=
 JWT_SECRET=
 JWT_EXPIRE_HOUR=24
 
+# -----------------------------------------------------------------------------
+# TOTP (2FA) Configuration
+# TOTP（双因素认证）配置
+# -----------------------------------------------------------------------------
+# IMPORTANT: Set a fixed encryption key for TOTP secrets. If left empty, a
+# random key will be generated on each startup, causing all existing TOTP
+# configurations to become invalid (users won't be able to login with 2FA).
+# Generate a secure key: openssl rand -hex 32
+# 重要：设置固定的 TOTP 加密密钥。如果留空，每次启动将生成随机密钥，
+# 导致现有的 TOTP 配置失效（用户无法使用双因素认证登录）。
+TOTP_ENCRYPTION_KEY=
+
 # -----------------------------------------------------------------------------
 # Configuration File (Optional)
 # -----------------------------------------------------------------------------

deploy/config.example.yaml

@@ -403,6 +403,21 @@ jwt:
   # 令牌过期时间（小时，最大 24）
   expire_hour: 24
 
+# =============================================================================
+# TOTP (2FA) Configuration
+# TOTP 双因素认证配置
+# =============================================================================
+totp:
+  # IMPORTANT: Set a fixed encryption key for TOTP secrets.
+  # 重要：设置固定的 TOTP 加密密钥。
+  # If left empty, a random key will be generated on each startup, causing all
+  # existing TOTP configurations to become invalid (users won't be able to
+  # login with 2FA).
+  # 如果留空，每次启动将生成随机密钥，导致现有的 TOTP 配置失效（用户无法使用
+  # 双因素认证登录）。
+  # Generate with / 生成命令: openssl rand -hex 32
+  encryption_key: ""
+
 # =============================================================================
 # LinuxDo Connect OAuth Login (SSO)
 # LinuxDo Connect OAuth 登录（用于 Sub2API 用户登录）

deploy/docker-compose.yml

@@ -79,6 +79,16 @@ services:
       - JWT_SECRET=${JWT_SECRET:-}
       - JWT_EXPIRE_HOUR=${JWT_EXPIRE_HOUR:-24}
 
+      # =======================================================================
+      # TOTP (2FA) Configuration
+      # =======================================================================
+      # IMPORTANT: Set a fixed encryption key for TOTP secrets. If left empty,
+      # a random key will be generated on each startup, causing all existing
+      # TOTP configurations to become invalid (users won't be able to login
+      # with 2FA).
+      # Generate a secure key: openssl rand -hex 32
+      - TOTP_ENCRYPTION_KEY=${TOTP_ENCRYPTION_KEY:-}
+
       # =======================================================================
       # Timezone Configuration
       # This affects ALL time operations in the application:

frontend/package-lock.json

@@ -15,6 +15,7 @@
         "driver.js": "^1.4.0",
         "file-saver": "^2.0.5",
         "pinia": "^2.1.7",
+        "qrcode": "^1.5.4",
         "vue": "^3.4.0",
         "vue-chartjs": "^5.3.0",
         "vue-i18n": "^9.14.5",
@@ -25,6 +26,7 @@
         "@types/file-saver": "^2.0.7",
         "@types/mdx": "^2.0.13",
         "@types/node": "^20.10.5",
+        "@types/qrcode": "^1.5.6",
         "@typescript-eslint/eslint-plugin": "^7.18.0",
         "@typescript-eslint/parser": "^7.18.0",
         "@vitejs/plugin-vue": "^5.2.3",
@@ -1680,6 +1682,16 @@
       "integrity": "sha512-dISoDXWWQwUquiKsyZ4Ng+HX2KsPL7LyHKHQwgGFEA3IaKac4Obd+h2a/a6waisAoepJlBcx9paWqjA8/HVjCw==",
       "license": "MIT"
     },
+    "node_modules/@types/qrcode": {
+      "version": "1.5.6",
+      "resolved": "https://registry.npmmirror.com/@types/qrcode/-/qrcode-1.5.6.tgz",
+      "integrity": "sha512-te7NQcV2BOvdj2b1hCAHzAoMNuj65kNBMz0KBaxM6c3VGBOhU0dURQKOtH8CFNI/dsKkwlv32p26qYQTWoB5bw==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@types/node": "*"
+      }
+    },
     "node_modules/@types/web-bluetooth": {
       "version": "0.0.20",
       "resolved": "https://registry.npmjs.org/@types/web-bluetooth/-/web-bluetooth-0.0.20.tgz",
@@ -2354,7 +2366,6 @@
       "version": "5.0.1",
       "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-5.0.1.tgz",
       "integrity": "sha512-quJQXlTSUGL2LH9SUXo8VwsY4soanhgo6LNSm84E1LBcE8s3O0wpdiRzyR9z/ZZJMlMWv37qOOb9pdJlMUEKFQ==",
-      "dev": true,
       "license": "MIT",
       "engines": {
         "node": ">=8"
@@ -2364,7 +2375,6 @@
       "version": "4.3.0",
       "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-4.3.0.tgz",
       "integrity": "sha512-zbB9rCJAT1rbjiVDb2hqKFHNYLxgtk8NURxZ3IZwD3F6NtxbXZQCnnSi1Lkx+IDohdPlFp222wVALIheZJQSEg==",
-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "color-convert": "^2.0.1"
@@ -2646,6 +2656,15 @@
         "node": ">=6"
       }
     },
+    "node_modules/camelcase": {
+      "version": "5.3.1",
+      "resolved": "https://registry.npmmirror.com/camelcase/-/camelcase-5.3.1.tgz",
+      "integrity": "sha512-L28STB170nwWS63UjtlEOE3dldQApaJXZkOI1uMFfzf3rRuPegHaHesyee+YxQ+W6SvRDQV6UrdOdRiR153wJg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=6"
+      }
+    },
     "node_modules/camelcase-css": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/camelcase-css/-/camelcase-css-2.0.1.tgz",
@@ -2784,6 +2803,51 @@
         "node": ">= 6"
       }
     },
+    "node_modules/cliui": {
+      "version": "6.0.0",
+      "resolved": "https://registry.npmmirror.com/cliui/-/cliui-6.0.0.tgz",
+      "integrity": "sha512-t6wbgtoCXvAzst7QgXxJYqPt0usEfbgQdftEPbLL/cvv6HPE5VgvqCuAIDR0NgU52ds6rFwqrgakNLrHEjCbrQ==",
+      "license": "ISC",
+      "dependencies": {
+        "string-width": "^4.2.0",
+        "strip-ansi": "^6.0.0",
+        "wrap-ansi": "^6.2.0"
+      }
+    },
+    "node_modules/cliui/node_modules/emoji-regex": {
+      "version": "8.0.0",
+      "resolved": "https://registry.npmmirror.com/emoji-regex/-/emoji-regex-8.0.0.tgz",
+      "integrity": "sha512-MSjYzcWNOA0ewAHpz0MxpYFvwg6yjy1NG3xteoqz644VCo/RPgnr1/GGt+ic3iJTzQ8Eu3TdM14SawnVUmGE6A==",
+      "license": "MIT"
+    },
+    "node_modules/cliui/node_modules/string-width": {
+      "version": "4.2.3",
+      "resolved": "https://registry.npmmirror.com/string-width/-/string-width-4.2.3.tgz",
+      "integrity": "sha512-wKyQRQpjJ0sIp62ErSZdGsjMJWsap5oRNihHhu6G7JVO/9jIB6UyevL+tXuOqrng8j/cxKTWyWUwvSTriiZz/g==",
+      "license": "MIT",
+      "dependencies": {
+        "emoji-regex": "^8.0.0",
+        "is-fullwidth-code-point": "^3.0.0",
+        "strip-ansi": "^6.0.1"
+      },
+      "engines": {
+        "node": ">=8"
+      }
+    },
+    "node_modules/cliui/node_modules/wrap-ansi": {
+      "version": "6.2.0",
+      "resolved": "https://registry.npmmirror.com/wrap-ansi/-/wrap-ansi-6.2.0.tgz",
+      "integrity": "sha512-r6lPcBGxZXlIcymEu7InxDMhdW0KDxpLgoFLcguasxCaJ/SOIZwINatK9KY/tf+ZrlywOKU0UDj3ATXUBfxJXA==",
+      "license": "MIT",
+      "dependencies": {
+        "ansi-styles": "^4.0.0",
+        "string-width": "^4.1.0",
+        "strip-ansi": "^6.0.0"
+      },
+      "engines": {
+        "node": ">=8"
+      }
+    },
     "node_modules/clsx": {
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/clsx/-/clsx-2.1.1.tgz",
@@ -2806,7 +2870,6 @@
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-2.0.1.tgz",
       "integrity": "sha512-RRECPsj7iu/xb5oKYcsFHSppFNnsj/52OVTRKb4zP5onXwVF3zVmmToNcOfGC+CRDpfK/U584fMg38ZHCaElKQ==",
-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "color-name": "~1.1.4"
@@ -2819,7 +2882,6 @@
       "version": "1.1.4",
       "resolved": "https://registry.npmjs.org/color-name/-/color-name-1.1.4.tgz",
       "integrity": "sha512-dOy+3AuW3a2wNbZHIuMZpTcgjGuLU/uBL/ubcZF9OXbDo8ff4O8yVp5Bf0efS8uEoYo5q4Fx7dY9OgQGXgAsQA==",
-      "dev": true,
       "license": "MIT"
     },
     "node_modules/combined-stream": {
@@ -2989,6 +3051,15 @@
         }
       }
     },
+    "node_modules/decamelize": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmmirror.com/decamelize/-/decamelize-1.2.0.tgz",
+      "integrity": "sha512-z2S+W9X73hAUUki+N+9Za2lBlun89zigOyGrsax+KUQ6wKW4ZoWpEYBkGhQjwAjjDCkWxhY0VKEhk8wzY7F5cA==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
     "node_modules/decimal.js": {
       "version": "10.6.0",
       "resolved": "https://registry.npmjs.org/decimal.js/-/decimal.js-10.6.0.tgz",
@@ -3029,6 +3100,12 @@
       "dev": true,
       "license": "Apache-2.0"
     },
+    "node_modules/dijkstrajs": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmmirror.com/dijkstrajs/-/dijkstrajs-1.0.3.tgz",
+      "integrity": "sha512-qiSlmBq9+BCdCA/L46dw8Uy93mloxsPSbwnm5yrKn2vMPiy8KyAskTF6zuV/j5BMsmOGZDPs7KjU+mjb670kfA==",
+      "license": "MIT"
+    },
     "node_modules/dir-glob": {
       "version": "3.0.1",
       "resolved": "https://registry.npmjs.org/dir-glob/-/dir-glob-3.0.1.tgz",
@@ -3759,6 +3836,15 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
+    "node_modules/get-caller-file": {
+      "version": "2.0.5",
+      "resolved": "https://registry.npmmirror.com/get-caller-file/-/get-caller-file-2.0.5.tgz",
+      "integrity": "sha512-DyFP3BM/3YHTQOCUL/w0OZHR0lpKeGrxotcHWcqNEdnltqFwXVfhEBQ94eIo34AfQpo0rGki4cyIiftY06h2Fg==",
+      "license": "ISC",
+      "engines": {
+        "node": "6.* || 8.* || >= 10.*"
+      }
+    },
     "node_modules/get-intrinsic": {
       "version": "1.3.0",
       "resolved": "https://registry.npmjs.org/get-intrinsic/-/get-intrinsic-1.3.0.tgz",
@@ -4156,7 +4242,6 @@
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-3.0.0.tgz",
       "integrity": "sha512-zymm5+u+sCsSWyD9qNaejV3DFvhCKclKdizYaJUuHA83RLjb7nSuGnddCHGv0hk+KY7BMAlsWeK4Ueg6EV6XQg==",
-      "dev": true,
       "license": "MIT",
       "engines": {
         "node": ">=8"
@@ -4883,6 +4968,15 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
+    "node_modules/p-try": {
+      "version": "2.2.0",
+      "resolved": "https://registry.npmmirror.com/p-try/-/p-try-2.2.0.tgz",
+      "integrity": "sha512-R4nPAVTAU0B9D35/Gk3uJf/7XYbQcyohSKdvAxIRSNghFl4e71hVoGnBNQz9cWaXxO2I10KTC+3jMdvvoKw6dQ==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=6"
+      }
+    },
     "node_modules/package-json-from-dist": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/package-json-from-dist/-/package-json-from-dist-1.0.1.tgz",
@@ -4957,7 +5051,6 @@
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/path-exists/-/path-exists-4.0.0.tgz",
       "integrity": "sha512-ak9Qy5Q7jYb2Wwcey5Fpvg2KoAc/ZIhLSLOSBmRmygPsGwkVVt0fZa0qrtMz+m6tJTAHfZQ8FnmB4MG4LWy7/w==",
-      "dev": true,
       "license": "MIT",
       "engines": {
         "node": ">=8"
@@ -5093,6 +5186,15 @@
         "node": ">= 6"
       }
     },
+    "node_modules/pngjs": {
+      "version": "5.0.0",
+      "resolved": "https://registry.npmmirror.com/pngjs/-/pngjs-5.0.0.tgz",
+      "integrity": "sha512-40QW5YalBNfQo5yRYmiw7Yz6TKKVr3h6970B2YE+3fQpsWcrbj1PzJgxeJ19DRQjhMbKPIuMY8rFaXc8moolVw==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=10.13.0"
+      }
+    },
     "node_modules/polished": {
       "version": "4.3.1",
       "resolved": "https://registry.npmjs.org/polished/-/polished-4.3.1.tgz",
@@ -5313,6 +5415,23 @@
         "node": ">=6"
       }
     },
+    "node_modules/qrcode": {
+      "version": "1.5.4",
+      "resolved": "https://registry.npmmirror.com/qrcode/-/qrcode-1.5.4.tgz",
+      "integrity": "sha512-1ca71Zgiu6ORjHqFBDpnSMTR2ReToX4l1Au1VFLyVeBTFavzQnv5JxMFr3ukHVKpSrSA2MCk0lNJSykjUfz7Zg==",
+      "license": "MIT",
+      "dependencies": {
+        "dijkstrajs": "^1.0.1",
+        "pngjs": "^5.0.0",
+        "yargs": "^15.3.1"
+      },
+      "bin": {
+        "qrcode": "bin/qrcode"
+      },
+      "engines": {
+        "node": ">=10.13.0"
+      }
+    },
     "node_modules/querystringify": {
       "version": "2.2.0",
       "resolved": "https://registry.npmjs.org/querystringify/-/querystringify-2.2.0.tgz",
@@ -5370,6 +5489,21 @@
         "node": ">=8.10.0"
       }
     },
+    "node_modules/require-directory": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmmirror.com/require-directory/-/require-directory-2.1.1.tgz",
+      "integrity": "sha512-fGxEI7+wsG9xrvdjsrlmL22OMTTiHRwAMroiEeMgq8gzoLC/PQr7RsRDSTLUg/bZAZtF+TVIkHc6/4RIKrui+Q==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
+    "node_modules/require-main-filename": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmmirror.com/require-main-filename/-/require-main-filename-2.0.0.tgz",
+      "integrity": "sha512-NKN5kMDylKuldxYLSUfrbo5Tuzh4hd+2E8NPPX02mZtn1VuREQToYe/ZdlJy+J3uCpfaiGF05e7B8W0iXbQHmg==",
+      "license": "ISC"
+    },
     "node_modules/requires-port": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/requires-port/-/requires-port-1.0.0.tgz",
@@ -5543,6 +5677,12 @@
         "node": ">=10"
       }
     },
+    "node_modules/set-blocking": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmmirror.com/set-blocking/-/set-blocking-2.0.0.tgz",
+      "integrity": "sha512-KiKBS8AnWGEyLzofFfmvKwpdPzqiy16LvQfK3yv/fVH7Bj13/wl3JSR1J+rfgRE9q7xUJK4qvgS8raSOeLUehw==",
+      "license": "ISC"
+    },
     "node_modules/shebang-command": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/shebang-command/-/shebang-command-2.0.0.tgz",
@@ -5714,7 +5854,6 @@
       "version": "6.0.1",
       "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-6.0.1.tgz",
       "integrity": "sha512-Y38VPSHcqkFrCpFnQ9vuSXmquuv5oXOKpGeT6aGrr3o3Gc9AlVa6JBfUSOCnbxGGZF+/0ooI7KrPuUSztUdU5A==",
-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "ansi-regex": "^5.0.1"
@@ -6715,6 +6854,12 @@
         "node": ">= 8"
       }
     },
+    "node_modules/which-module": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmmirror.com/which-module/-/which-module-2.0.1.tgz",
+      "integrity": "sha512-iBdZ57RDvnOR9AGBhML2vFZf7h8vmBjhoaZqODJBFWHVtKkDmKuHai3cx5PgVMrX5YDNp27AofYbAwctSS+vhQ==",
+      "license": "ISC"
+    },
     "node_modules/why-is-node-running": {
       "version": "2.3.0",
       "resolved": "https://registry.npmjs.org/why-is-node-running/-/why-is-node-running-2.3.0.tgz",
@@ -6928,6 +7073,12 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/y18n": {
+      "version": "4.0.3",
+      "resolved": "https://registry.npmmirror.com/y18n/-/y18n-4.0.3.tgz",
+      "integrity": "sha512-JKhqTOwSrqNA1NY5lSztJ1GrBiUodLMmIZuLiDaMRJ+itFd+ABVE8XBjOvIWL+rSqNDC74LCSFmlb/U4UZ4hJQ==",
+      "license": "ISC"
+    },
     "node_modules/yaml": {
       "version": "1.10.2",
       "resolved": "https://registry.npmjs.org/yaml/-/yaml-1.10.2.tgz",
@@ -6937,6 +7088,113 @@
         "node": ">= 6"
       }
     },
+    "node_modules/yargs": {
+      "version": "15.4.1",
+      "resolved": "https://registry.npmmirror.com/yargs/-/yargs-15.4.1.tgz",
+      "integrity": "sha512-aePbxDmcYW++PaqBsJ+HYUFwCdv4LVvdnhBy78E57PIor8/OVvhMrADFFEDh8DHDFRv/O9i3lPhsENjO7QX0+A==",
+      "license": "MIT",
+      "dependencies": {
+        "cliui": "^6.0.0",
+        "decamelize": "^1.2.0",
+        "find-up": "^4.1.0",
+        "get-caller-file": "^2.0.1",
+        "require-directory": "^2.1.1",
+        "require-main-filename": "^2.0.0",
+        "set-blocking": "^2.0.0",
+        "string-width": "^4.2.0",
+        "which-module": "^2.0.0",
+        "y18n": "^4.0.0",
+        "yargs-parser": "^18.1.2"
+      },
+      "engines": {
+        "node": ">=8"
+      }
+    },
+    "node_modules/yargs-parser": {
+      "version": "18.1.3",
+      "resolved": "https://registry.npmmirror.com/yargs-parser/-/yargs-parser-18.1.3.tgz",
+      "integrity": "sha512-o50j0JeToy/4K6OZcaQmW6lyXXKhq7csREXcDwk2omFPJEwUNOVtJKvmDr9EI1fAJZUyZcRF7kxGBWmRXudrCQ==",
+      "license": "ISC",
+      "dependencies": {
+        "camelcase": "^5.0.0",
+        "decamelize": "^1.2.0"
+      },
+      "engines": {
+        "node": ">=6"
+      }
+    },
+    "node_modules/yargs/node_modules/emoji-regex": {
+      "version": "8.0.0",
+      "resolved": "https://registry.npmmirror.com/emoji-regex/-/emoji-regex-8.0.0.tgz",
+      "integrity": "sha512-MSjYzcWNOA0ewAHpz0MxpYFvwg6yjy1NG3xteoqz644VCo/RPgnr1/GGt+ic3iJTzQ8Eu3TdM14SawnVUmGE6A==",
+      "license": "MIT"
+    },
+    "node_modules/yargs/node_modules/find-up": {
+      "version": "4.1.0",
+      "resolved": "https://registry.npmmirror.com/find-up/-/find-up-4.1.0.tgz",
+      "integrity": "sha512-PpOwAdQ/YlXQ2vj8a3h8IipDuYRi3wceVQQGYWxNINccq40Anw7BlsEXCMbt1Zt+OLA6Fq9suIpIWD0OsnISlw==",
+      "license": "MIT",
+      "dependencies": {
+        "locate-path": "^5.0.0",
+        "path-exists": "^4.0.0"
+      },
+      "engines": {
+        "node": ">=8"
+      }
+    },
+    "node_modules/yargs/node_modules/locate-path": {
+      "version": "5.0.0",
+      "resolved": "https://registry.npmmirror.com/locate-path/-/locate-path-5.0.0.tgz",
+      "integrity": "sha512-t7hw9pI+WvuwNJXwk5zVHpyhIqzg2qTlklJOf0mVxGSbe3Fp2VieZcduNYjaLDoy6p9uGpQEGWG87WpMKlNq8g==",
+      "license": "MIT",
+      "dependencies": {
+        "p-locate": "^4.1.0"
+      },
+      "engines": {
+        "node": ">=8"
+      }
+    },
+    "node_modules/yargs/node_modules/p-limit": {
+      "version": "2.3.0",
+      "resolved": "https://registry.npmmirror.com/p-limit/-/p-limit-2.3.0.tgz",
+      "integrity": "sha512-//88mFWSJx8lxCzwdAABTJL2MyWB12+eIY7MDL2SqLmAkeKU9qxRvWuSyTjm3FUmpBEMuFfckAIqEaVGUDxb6w==",
+      "license": "MIT",
+      "dependencies": {
+        "p-try": "^2.0.0"
+      },
+      "engines": {
+        "node": ">=6"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
+    "node_modules/yargs/node_modules/p-locate": {
+      "version": "4.1.0",
+      "resolved": "https://registry.npmmirror.com/p-locate/-/p-locate-4.1.0.tgz",
+      "integrity": "sha512-R79ZZ/0wAxKGu3oYMlz8jy/kbhsNrS7SKZ7PxEHBgJ5+F2mtFW2fK2cOtBh1cHYkQsbzFV7I+EoRKe6Yt0oK7A==",
+      "license": "MIT",
+      "dependencies": {
+        "p-limit": "^2.2.0"
+      },
+      "engines": {
+        "node": ">=8"
+      }
+    },
+    "node_modules/yargs/node_modules/string-width": {
+      "version": "4.2.3",
+      "resolved": "https://registry.npmmirror.com/string-width/-/string-width-4.2.3.tgz",
+      "integrity": "sha512-wKyQRQpjJ0sIp62ErSZdGsjMJWsap5oRNihHhu6G7JVO/9jIB6UyevL+tXuOqrng8j/cxKTWyWUwvSTriiZz/g==",
+      "license": "MIT",
+      "dependencies": {
+        "emoji-regex": "^8.0.0",
+        "is-fullwidth-code-point": "^3.0.0",
+        "strip-ansi": "^6.0.1"
+      },
+      "engines": {
+        "node": ">=8"
+      }
+    },
     "node_modules/yocto-queue": {
       "version": "0.1.0",
       "resolved": "https://registry.npmjs.org/yocto-queue/-/yocto-queue-0.1.0.tgz",

frontend/package.json

@@ -22,6 +22,7 @@
     "driver.js": "^1.4.0",
     "file-saver": "^2.0.5",
     "pinia": "^2.1.7",
+    "qrcode": "^1.5.4",
     "vue": "^3.4.0",
     "vue-chartjs": "^5.3.0",
     "vue-i18n": "^9.14.5",
@@ -32,6 +33,7 @@
     "@types/file-saver": "^2.0.7",
     "@types/mdx": "^2.0.13",
     "@types/node": "^20.10.5",
+    "@types/qrcode": "^1.5.6",
     "@typescript-eslint/eslint-plugin": "^7.18.0",
     "@typescript-eslint/parser": "^7.18.0",
     "@vitejs/plugin-vue": "^5.2.3",

frontend/pnpm-lock.yaml

@@ -29,6 +29,9 @@ importers:
       pinia:
         specifier: ^2.1.7
         version: 2.3.1(typescript@5.6.3)(vue@3.5.26(typescript@5.6.3))
+      qrcode:
+        specifier: ^1.5.4
+        version: 1.5.4
       vue:
         specifier: ^3.4.0
         version: 3.5.26(typescript@5.6.3)
@@ -54,6 +57,9 @@ importers:
       '@types/node':
         specifier: ^20.10.5
         version: 20.19.27
+      '@types/qrcode':
+        specifier: ^1.5.6
+        version: 1.5.6
       '@typescript-eslint/eslint-plugin':
         specifier: ^7.18.0
         version: 7.18.0(@typescript-eslint/parser@7.18.0(eslint@8.57.1)(typescript@5.6.3))(eslint@8.57.1)(typescript@5.6.3)
@@ -1239,56 +1245,67 @@ packages:
     resolution: {integrity: sha512-EHMUcDwhtdRGlXZsGSIuXSYwD5kOT9NVnx9sqzYiwAc91wfYOE1g1djOEDseZJKKqtHAHGwnGPQu3kytmfaXLQ==}
     cpu: [arm]
     os: [linux]
+    libc: [glibc]
 
   '@rollup/rollup-linux-arm-musleabihf@4.54.0':
     resolution: {integrity: sha512-+pBrqEjaakN2ySv5RVrj/qLytYhPKEUwk+e3SFU5jTLHIcAtqh2rLrd/OkbNuHJpsBgxsD8ccJt5ga/SeG0JmA==}
     cpu: [arm]
     os: [linux]
+    libc: [musl]
 
   '@rollup/rollup-linux-arm64-gnu@4.54.0':
     resolution: {integrity: sha512-NSqc7rE9wuUaRBsBp5ckQ5CVz5aIRKCwsoa6WMF7G01sX3/qHUw/z4pv+D+ahL1EIKy6Enpcnz1RY8pf7bjwng==}
     cpu: [arm64]
     os: [linux]
+    libc: [glibc]
 
   '@rollup/rollup-linux-arm64-musl@4.54.0':
     resolution: {integrity: sha512-gr5vDbg3Bakga5kbdpqx81m2n9IX8M6gIMlQQIXiLTNeQW6CucvuInJ91EuCJ/JYvc+rcLLsDFcfAD1K7fMofg==}
     cpu: [arm64]
     os: [linux]
+    libc: [musl]
 
   '@rollup/rollup-linux-loong64-gnu@4.54.0':
     resolution: {integrity: sha512-gsrtB1NA3ZYj2vq0Rzkylo9ylCtW/PhpLEivlgWe0bpgtX5+9j9EZa0wtZiCjgu6zmSeZWyI/e2YRX1URozpIw==}
     cpu: [loong64]
     os: [linux]
+    libc: [glibc]
 
   '@rollup/rollup-linux-ppc64-gnu@4.54.0':
     resolution: {integrity: sha512-y3qNOfTBStmFNq+t4s7Tmc9hW2ENtPg8FeUD/VShI7rKxNW7O4fFeaYbMsd3tpFlIg1Q8IapFgy7Q9i2BqeBvA==}
     cpu: [ppc64]
     os: [linux]
+    libc: [glibc]
 
   '@rollup/rollup-linux-riscv64-gnu@4.54.0':
     resolution: {integrity: sha512-89sepv7h2lIVPsFma8iwmccN7Yjjtgz0Rj/Ou6fEqg3HDhpCa+Et+YSufy27i6b0Wav69Qv4WBNl3Rs6pwhebQ==}
     cpu: [riscv64]
     os: [linux]
+    libc: [glibc]
 
   '@rollup/rollup-linux-riscv64-musl@4.54.0':
     resolution: {integrity: sha512-ZcU77ieh0M2Q8Ur7D5X7KvK+UxbXeDHwiOt/CPSBTI1fBmeDMivW0dPkdqkT4rOgDjrDDBUed9x4EgraIKoR2A==}
     cpu: [riscv64]
     os: [linux]
+    libc: [musl]
 
   '@rollup/rollup-linux-s390x-gnu@4.54.0':
     resolution: {integrity: sha512-2AdWy5RdDF5+4YfG/YesGDDtbyJlC9LHmL6rZw6FurBJ5n4vFGupsOBGfwMRjBYH7qRQowT8D/U4LoSvVwOhSQ==}
     cpu: [s390x]
     os: [linux]
+    libc: [glibc]
 
   '@rollup/rollup-linux-x64-gnu@4.54.0':
     resolution: {integrity: sha512-WGt5J8Ij/rvyqpFexxk3ffKqqbLf9AqrTBbWDk7ApGUzaIs6V+s2s84kAxklFwmMF/vBNGrVdYgbblCOFFezMQ==}
     cpu: [x64]
     os: [linux]
+    libc: [glibc]
 
   '@rollup/rollup-linux-x64-musl@4.54.0':
     resolution: {integrity: sha512-JzQmb38ATzHjxlPHuTH6tE7ojnMKM2kYNzt44LO/jJi8BpceEC8QuXYA908n8r3CNuG/B3BV8VR3Hi1rYtmPiw==}
     cpu: [x64]
     os: [linux]
+    libc: [musl]
 
   '@rollup/rollup-openharmony-arm64@4.54.0':
     resolution: {integrity: sha512-huT3fd0iC7jigGh7n3q/+lfPcXxBi+om/Rs3yiFxjvSxbSB6aohDFXbWvlspaqjeOh+hx7DDHS+5Es5qRkWkZg==}
@@ -1479,6 +1496,9 @@ packages:
   '@types/parse-json@4.0.2':
     resolution: {integrity: sha512-dISoDXWWQwUquiKsyZ4Ng+HX2KsPL7LyHKHQwgGFEA3IaKac4Obd+h2a/a6waisAoepJlBcx9paWqjA8/HVjCw==}
 
+  '@types/qrcode@1.5.6':
+    resolution: {integrity: sha512-te7NQcV2BOvdj2b1hCAHzAoMNuj65kNBMz0KBaxM6c3VGBOhU0dURQKOtH8CFNI/dsKkwlv32p26qYQTWoB5bw==}
+
   '@types/react@19.2.7':
     resolution: {integrity: sha512-MWtvHrGZLFttgeEj28VXHxpmwYbor/ATPYbBfSFZEIRK0ecCFLl2Qo55z52Hss+UV9CRN7trSeq1zbgx7YDWWg==}
 
@@ -1832,6 +1852,10 @@ packages:
     resolution: {integrity: sha512-QOSvevhslijgYwRx6Rv7zKdMF8lbRmx+uQGx2+vDc+KI/eBnsy9kit5aj23AgGu3pa4t9AgwbnXWqS+iOY+2aA==}
     engines: {node: '>= 6'}
 
+  camelcase@5.3.1:
+    resolution: {integrity: sha512-L28STB170nwWS63UjtlEOE3dldQApaJXZkOI1uMFfzf3rRuPegHaHesyee+YxQ+W6SvRDQV6UrdOdRiR153wJg==}
+    engines: {node: '>=6'}
+
   caniuse-lite@1.0.30001761:
     resolution: {integrity: sha512-JF9ptu1vP2coz98+5051jZ4PwQgd2ni8A+gYSN7EA7dPKIMf0pDlSUxhdmVOaV3/fYK5uWBkgSXJaRLr4+3A6g==}
 
@@ -1895,6 +1919,9 @@ packages:
   classnames@2.5.1:
     resolution: {integrity: sha512-saHYOzhIQs6wy2sVxTM6bUDsQO4F50V9RQ22qBpEdCW+I+/Wmke2HOl6lS6dTpdxVhb88/I6+Hs+438c3lfUow==}
 
+  cliui@6.0.0:
+    resolution: {integrity: sha512-t6wbgtoCXvAzst7QgXxJYqPt0usEfbgQdftEPbLL/cvv6HPE5VgvqCuAIDR0NgU52ds6rFwqrgakNLrHEjCbrQ==}
+
   clsx@1.2.1:
     resolution: {integrity: sha512-EcR6r5a8bj6pu3ycsa/E/cKVGuTgZJZdsyUYHOksG/UHIiKfjxzRxYJpyVBwYaQeOvghal9fcc4PidlgzugAQg==}
     engines: {node: '>=6'}
@@ -2164,6 +2191,10 @@ packages:
       supports-color:
         optional: true
 
+  decamelize@1.2.0:
+    resolution: {integrity: sha512-z2S+W9X73hAUUki+N+9Za2lBlun89zigOyGrsax+KUQ6wKW4ZoWpEYBkGhQjwAjjDCkWxhY0VKEhk8wzY7F5cA==}
+    engines: {node: '>=0.10.0'}
+
   decimal.js@10.6.0:
     resolution: {integrity: sha512-YpgQiITW3JXGntzdUmyUR1V812Hn8T1YVXhCu+wO3OpS4eU9l4YdD3qjyiKdV6mvV29zapkMeD390UVEf2lkUg==}
 
@@ -2198,6 +2229,9 @@ packages:
   didyoumean@1.2.2:
     resolution: {integrity: sha512-gxtyfqMg7GKyhQmb056K7M3xszy/myH8w+B4RT+QXBQsvAOdc3XymqDDPHx1BgPgsdAA5SIifona89YtRATDzw==}
 
+  dijkstrajs@1.0.3:
+    resolution: {integrity: sha512-qiSlmBq9+BCdCA/L46dw8Uy93mloxsPSbwnm5yrKn2vMPiy8KyAskTF6zuV/j5BMsmOGZDPs7KjU+mjb670kfA==}
+
   dir-glob@3.0.1:
     resolution: {integrity: sha512-WkrWp9GR4KXfKGYzOLmTuGVi1UWFfws377n9cc55/tb6DuqyF6pcQ5AbiHEshaDpY9v6oaSr2XCDidGmMwdzIA==}
     engines: {node: '>=8'}
@@ -2424,6 +2458,10 @@ packages:
   find-root@1.1.0:
     resolution: {integrity: sha512-NKfW6bec6GfKc0SGx1e07QZY9PE99u0Bft/0rzSD5k3sO/vwkVUpDUKVm5Gpp5Ue3YfShPFTX2070tDs5kB9Ng==}
 
+  find-up@4.1.0:
+    resolution: {integrity: sha512-PpOwAdQ/YlXQ2vj8a3h8IipDuYRi3wceVQQGYWxNINccq40Anw7BlsEXCMbt1Zt+OLA6Fq9suIpIWD0OsnISlw==}
+    engines: {node: '>=8'}
+
   find-up@5.0.0:
     resolution: {integrity: sha512-78/PXT1wlLLDgTzDs7sjq9hzz0vXD+zn+7wypEe4fXQxCmdmqfGsEPQxmiCSQI3ajFV91bVSsvNtrJRiW6nGng==}
     engines: {node: '>=10'}
@@ -2488,6 +2526,10 @@ packages:
   function-bind@1.1.2:
     resolution: {integrity: sha512-7XHNxH7qX9xG5mIwxkhumTox/MIRNcOgDrxWsMt2pAr23WHp6MrRlN7FBSFpCpr+oVO0F744iUgR82nJMfG2SA==}
 
+  get-caller-file@2.0.5:
+    resolution: {integrity: sha512-DyFP3BM/3YHTQOCUL/w0OZHR0lpKeGrxotcHWcqNEdnltqFwXVfhEBQ94eIo34AfQpo0rGki4cyIiftY06h2Fg==}
+    engines: {node: 6.* || 8.* || >= 10.*}
+
   get-east-asian-width@1.4.0:
     resolution: {integrity: sha512-QZjmEOC+IT1uk6Rx0sX22V6uHWVwbdbxf1faPqJ1QhLdGgsRGCZoyaQBm/piRdJy/D2um6hM1UP7ZEeQ4EkP+Q==}
     engines: {node: '>=18'}
@@ -2856,6 +2898,10 @@ packages:
   lit@3.3.2:
     resolution: {integrity: sha512-NF9zbsP79l4ao2SNrH3NkfmFgN/hBYSQo90saIVI1o5GpjAdCPVstVzO1MrLOakHoEhYkrtRjPK6Ob521aoYWQ==}
 
+  locate-path@5.0.0:
+    resolution: {integrity: sha512-t7hw9pI+WvuwNJXwk5zVHpyhIqzg2qTlklJOf0mVxGSbe3Fp2VieZcduNYjaLDoy6p9uGpQEGWG87WpMKlNq8g==}
+    engines: {node: '>=8'}
+
   locate-path@6.0.0:
     resolution: {integrity: sha512-iPZK6eYjbxRu3uB4/WZ3EsEIMJFMqAoopl3R+zuq0UjcAm/MO6KCweDgPfP3elTztoKP3KtnVHxTn2NHBSDVUw==}
     engines: {node: '>=10'}
@@ -3239,14 +3285,26 @@ packages:
     resolution: {integrity: sha512-6IpQ7mKUxRcZNLIObR0hz7lxsapSSIYNZJwXPGeF0mTVqGKFIXj1DQcMoT22S3ROcLyY/rz0PWaWZ9ayWmad9g==}
     engines: {node: '>= 0.8.0'}
 
+  p-limit@2.3.0:
+    resolution: {integrity: sha512-//88mFWSJx8lxCzwdAABTJL2MyWB12+eIY7MDL2SqLmAkeKU9qxRvWuSyTjm3FUmpBEMuFfckAIqEaVGUDxb6w==}
+    engines: {node: '>=6'}
+
   p-limit@3.1.0:
     resolution: {integrity: sha512-TYOanM3wGwNGsZN2cVTYPArw454xnXj5qmWF1bEoAc4+cU/ol7GVh7odevjp1FNHduHc3KZMcFduxU5Xc6uJRQ==}
     engines: {node: '>=10'}
 
+  p-locate@4.1.0:
+    resolution: {integrity: sha512-R79ZZ/0wAxKGu3oYMlz8jy/kbhsNrS7SKZ7PxEHBgJ5+F2mtFW2fK2cOtBh1cHYkQsbzFV7I+EoRKe6Yt0oK7A==}
+    engines: {node: '>=8'}
+
   p-locate@5.0.0:
     resolution: {integrity: sha512-LaNjtRWUBY++zB5nE/NwcaoMylSPk+S+ZHNB1TzdbMJMny6dynpAGt7X/tl/QYq3TIeE6nxHppbo2LGymrG5Pw==}
     engines: {node: '>=10'}
 
+  p-try@2.2.0:
+    resolution: {integrity: sha512-R4nPAVTAU0B9D35/Gk3uJf/7XYbQcyohSKdvAxIRSNghFl4e71hVoGnBNQz9cWaXxO2I10KTC+3jMdvvoKw6dQ==}
+    engines: {node: '>=6'}
+
   package-json-from-dist@1.0.1:
     resolution: {integrity: sha512-UEZIS3/by4OC8vL3P2dTXRETpebLI2NiI5vIrjaD/5UtrkFX/tNbwjTSRAGC/+7CAo2pIcBaRgWmcBBHcsaCIw==}
 
@@ -3341,6 +3399,10 @@ packages:
   pkg-types@1.3.1:
     resolution: {integrity: sha512-/Jm5M4RvtBFVkKWRu2BLUTNP8/M2a+UwuAX+ae4770q1qVGtfjG+WTCupoZixokjmHiry8uI+dlY8KXYV5HVVQ==}
 
+  pngjs@5.0.0:
+    resolution: {integrity: sha512-40QW5YalBNfQo5yRYmiw7Yz6TKKVr3h6970B2YE+3fQpsWcrbj1PzJgxeJ19DRQjhMbKPIuMY8rFaXc8moolVw==}
+    engines: {node: '>=10.13.0'}
+
   points-on-curve@0.2.0:
     resolution: {integrity: sha512-0mYKnYYe9ZcqMCWhUjItv/oHjvgEsfKvnUTg8sAtnHr3GVy7rGkXCb6d5cSyqrWqL4k81b9CPg3urd+T7aop3A==}
 
@@ -3421,6 +3483,11 @@ packages:
     resolution: {integrity: sha512-vYt7UD1U9Wg6138shLtLOvdAu+8DsC/ilFtEVHcH+wydcSpNE20AfSOduf6MkRFahL5FY7X1oU7nKVZFtfq8Fg==}
     engines: {node: '>=6'}
 
+  qrcode@1.5.4:
+    resolution: {integrity: sha512-1ca71Zgiu6ORjHqFBDpnSMTR2ReToX4l1Au1VFLyVeBTFavzQnv5JxMFr3ukHVKpSrSA2MCk0lNJSykjUfz7Zg==}
+    engines: {node: '>=10.13.0'}
+    hasBin: true
+
   query-string@9.3.1:
     resolution: {integrity: sha512-5fBfMOcDi5SA9qj5jZhWAcTtDfKF5WFdd2uD9nVNlbxVv1baq65aALy6qofpNEGELHvisjjasxQp7BlM9gvMzw==}
     engines: {node: '>=18'}
@@ -3664,6 +3731,13 @@ packages:
   remark-stringify@11.0.0:
     resolution: {integrity: sha512-1OSmLd3awB/t8qdoEOMazZkNsfVTeY4fTsgzcQFdXNq8ToTN4ZGwrMnlda4K6smTFKD+GRV6O48i6Z4iKgPPpw==}
 
+  require-directory@2.1.1:
+    resolution: {integrity: sha512-fGxEI7+wsG9xrvdjsrlmL22OMTTiHRwAMroiEeMgq8gzoLC/PQr7RsRDSTLUg/bZAZtF+TVIkHc6/4RIKrui+Q==}
+    engines: {node: '>=0.10.0'}
+
+  require-main-filename@2.0.0:
+    resolution: {integrity: sha512-NKN5kMDylKuldxYLSUfrbo5Tuzh4hd+2E8NPPX02mZtn1VuREQToYe/ZdlJy+J3uCpfaiGF05e7B8W0iXbQHmg==}
+
   requires-port@1.0.0:
     resolution: {integrity: sha512-KigOCHcocU3XODJxsu8i/j8T9tzT4adHiecwORRQ0ZZFcp7ahwXuRU1m+yuO90C5ZUyGeGfocHDI14M3L3yDAQ==}
 
@@ -3739,6 +3813,9 @@ packages:
     engines: {node: '>=10'}
     hasBin: true
 
+  set-blocking@2.0.0:
+    resolution: {integrity: sha512-KiKBS8AnWGEyLzofFfmvKwpdPzqiy16LvQfK3yv/fVH7Bj13/wl3JSR1J+rfgRE9q7xUJK4qvgS8raSOeLUehw==}
+
   set-value@2.0.1:
     resolution: {integrity: sha512-JxHc1weCN68wRY0fhCoXpyK55m/XPHafOmK4UWD7m2CI14GMcFypt4w/0+NV5f/ZMby2F6S2wwA7fgynh9gWSw==}
     engines: {node: '>=0.10.0'}
@@ -4263,6 +4340,9 @@ packages:
     resolution: {integrity: sha512-De72GdQZzNTUBBChsXueQUnPKDkg/5A5zp7pFDuQAj5UFoENpiACU0wlCvzpAGnTkj++ihpKwKyYewn/XNUbKw==}
     engines: {node: '>=18'}
 
+  which-module@2.0.1:
+    resolution: {integrity: sha512-iBdZ57RDvnOR9AGBhML2vFZf7h8vmBjhoaZqODJBFWHVtKkDmKuHai3cx5PgVMrX5YDNp27AofYbAwctSS+vhQ==}
+
   which@2.0.2:
     resolution: {integrity: sha512-BLI3Tl1TW3Pvl70l3yq3Y64i+awpwXqsGBYWkkqMtnbXgrMD+yj7rhW0kuEDxzJaYXGjEW5ogapKNMEKNMjibA==}
     engines: {node: '>= 8'}
@@ -4285,6 +4365,10 @@ packages:
     resolution: {integrity: sha512-OELeY0Q61OXpdUfTp+oweA/vtLVg5VDOXh+3he3PNzLGG/y0oylSOC1xRVj0+l4vQ3tj/bB1HVHv1ocXkQceFA==}
     engines: {node: '>=0.8'}
 
+  wrap-ansi@6.2.0:
+    resolution: {integrity: sha512-r6lPcBGxZXlIcymEu7InxDMhdW0KDxpLgoFLcguasxCaJ/SOIZwINatK9KY/tf+ZrlywOKU0UDj3ATXUBfxJXA==}
+    engines: {node: '>=8'}
+
   wrap-ansi@7.0.0:
     resolution: {integrity: sha512-YVGIj2kamLSTxw6NsZjoBxfSwsn0ycdesmc4p+Q21c5zPuZ1pl+NfxVdxPtdHvmNVOQ6XSYG4AUtyt/Fi7D16Q==}
     engines: {node: '>=10'}
@@ -4324,10 +4408,21 @@ packages:
   xmlchars@2.2.0:
     resolution: {integrity: sha512-JZnDKK8B0RCDw84FNdDAIpZK+JuJw+s7Lz8nksI7SIuU3UXJJslUthsi+uWBUYOwPFwW7W7PRLRfUKpxjtjFCw==}
 
+  y18n@4.0.3:
+    resolution: {integrity: sha512-JKhqTOwSrqNA1NY5lSztJ1GrBiUodLMmIZuLiDaMRJ+itFd+ABVE8XBjOvIWL+rSqNDC74LCSFmlb/U4UZ4hJQ==}
+
   yaml@1.10.2:
     resolution: {integrity: sha512-r3vXyErRCYJ7wg28yvBY5VSoAF8ZvlcW9/BwUzEtUsjvX/DKs24dIkuwjtuprwJJHsbyUbLApepYTR1BN4uHrg==}
     engines: {node: '>= 6'}
 
+  yargs-parser@18.1.3:
+    resolution: {integrity: sha512-o50j0JeToy/4K6OZcaQmW6lyXXKhq7csREXcDwk2omFPJEwUNOVtJKvmDr9EI1fAJZUyZcRF7kxGBWmRXudrCQ==}
+    engines: {node: '>=6'}
+
+  yargs@15.4.1:
+    resolution: {integrity: sha512-aePbxDmcYW++PaqBsJ+HYUFwCdv4LVvdnhBy78E57PIor8/OVvhMrADFFEDh8DHDFRv/O9i3lPhsENjO7QX0+A==}
+    engines: {node: '>=8'}
+
   yocto-queue@0.1.0:
     resolution: {integrity: sha512-rVksvsnNCdJ/ohGc6xgPwyN8eheCxsiLM8mxuE/t/mOVqJewPuO1miLpTHQiRgTKCLexL4MeAFVagts7HmNZ2Q==}
     engines: {node: '>=10'}
@@ -5838,6 +5933,10 @@ snapshots:
 
   '@types/parse-json@4.0.2': {}
 
+  '@types/qrcode@1.5.6':
+    dependencies:
+      '@types/node': 20.19.27
+
   '@types/react@19.2.7':
     dependencies:
       csstype: 3.2.3
@@ -6321,6 +6420,8 @@ snapshots:
 
   camelcase-css@2.0.1: {}
 
+  camelcase@5.3.1: {}
+
   caniuse-lite@1.0.30001761: {}
 
   ccount@2.0.1: {}
@@ -6395,6 +6496,12 @@ snapshots:
 
   classnames@2.5.1: {}
 
+  cliui@6.0.0:
+    dependencies:
+      string-width: 4.2.3
+      strip-ansi: 6.0.1
+      wrap-ansi: 6.2.0
+
   clsx@1.2.1: {}
 
   clsx@2.1.1: {}
@@ -6668,6 +6775,8 @@ snapshots:
     dependencies:
       ms: 2.1.3
 
+  decamelize@1.2.0: {}
+
   decimal.js@10.6.0: {}
 
   decode-named-character-reference@1.2.0:
@@ -6694,6 +6803,8 @@ snapshots:
 
   didyoumean@1.2.2: {}
 
+  dijkstrajs@1.0.3: {}
+
   dir-glob@3.0.1:
     dependencies:
       path-type: 4.0.0
@@ -6978,6 +7089,11 @@ snapshots:
 
   find-root@1.1.0: {}
 
+  find-up@4.1.0:
+    dependencies:
+      locate-path: 5.0.0
+      path-exists: 4.0.0
+
   find-up@5.0.0:
     dependencies:
       locate-path: 6.0.0
@@ -7029,6 +7145,8 @@ snapshots:
 
   function-bind@1.1.2: {}
 
+  get-caller-file@2.0.5: {}
+
   get-east-asian-width@1.4.0: {}
 
   get-intrinsic@1.3.0:
@@ -7521,6 +7639,10 @@ snapshots:
       lit-element: 4.2.2
       lit-html: 3.3.2
 
+  locate-path@5.0.0:
+    dependencies:
+      p-locate: 4.1.0
+
   locate-path@6.0.0:
     dependencies:
       p-locate: 5.0.0
@@ -8194,14 +8316,24 @@ snapshots:
       type-check: 0.4.0
       word-wrap: 1.2.5
 
+  p-limit@2.3.0:
+    dependencies:
+      p-try: 2.2.0
+
   p-limit@3.1.0:
     dependencies:
       yocto-queue: 0.1.0
 
+  p-locate@4.1.0:
+    dependencies:
+      p-limit: 2.3.0
+
   p-locate@5.0.0:
     dependencies:
       p-limit: 3.1.0
 
+  p-try@2.2.0: {}
+
   package-json-from-dist@1.0.1: {}
 
   package-manager-detector@1.6.0: {}
@@ -8284,6 +8416,8 @@ snapshots:
       mlly: 1.8.0
       pathe: 2.0.3
 
+  pngjs@5.0.0: {}
+
   points-on-curve@0.2.0: {}
 
   points-on-path@0.2.1:
@@ -8352,6 +8486,12 @@ snapshots:
 
   punycode@2.3.1: {}
 
+  qrcode@1.5.4:
+    dependencies:
+      dijkstrajs: 1.0.3
+      pngjs: 5.0.0
+      yargs: 15.4.1
+
   query-string@9.3.1:
     dependencies:
       decode-uri-component: 0.4.1
@@ -8703,6 +8843,10 @@ snapshots:
       mdast-util-to-markdown: 2.1.2
       unified: 11.0.5
 
+  require-directory@2.1.1: {}
+
+  require-main-filename@2.0.0: {}
+
   requires-port@1.0.0: {}
 
   reselect@5.1.1: {}
@@ -8788,6 +8932,8 @@ snapshots:
 
   semver@7.7.3: {}
 
+  set-blocking@2.0.0: {}
+
   set-value@2.0.1:
     dependencies:
       extend-shallow: 2.0.1
@@ -9298,6 +9444,8 @@ snapshots:
       tr46: 5.1.1
       webidl-conversions: 7.0.0
 
+  which-module@2.0.1: {}
+
   which@2.0.2:
     dependencies:
       isexe: 2.0.0
@@ -9313,6 +9461,12 @@ snapshots:
 
   word@0.3.0: {}
 
+  wrap-ansi@6.2.0:
+    dependencies:
+      ansi-styles: 4.3.0
+      string-width: 4.2.3
+      strip-ansi: 6.0.1
+
   wrap-ansi@7.0.0:
     dependencies:
       ansi-styles: 4.3.0
@@ -9345,8 +9499,29 @@ snapshots:
 
   xmlchars@2.2.0: {}
 
+  y18n@4.0.3: {}
+
   yaml@1.10.2: {}
 
+  yargs-parser@18.1.3:
+    dependencies:
+      camelcase: 5.3.1
+      decamelize: 1.2.0
+
+  yargs@15.4.1:
+    dependencies:
+      cliui: 6.0.0
+      decamelize: 1.2.0
+      find-up: 4.1.0
+      get-caller-file: 2.0.5
+      require-directory: 2.1.1
+      require-main-filename: 2.0.0
+      set-blocking: 2.0.0
+      string-width: 4.2.3
+      which-module: 2.0.1
+      y18n: 4.0.3
+      yargs-parser: 18.1.3
+
   yocto-queue@0.1.0: {}
 
   zustand@3.7.2(react@19.2.3):

frontend/src/api/admin/settings.ts

@@ -13,6 +13,9 @@ export interface SystemSettings {
   registration_enabled: boolean
   email_verify_enabled: boolean
   promo_code_enabled: boolean
+  password_reset_enabled: boolean
+  totp_enabled: boolean // TOTP 双因素认证
+  totp_encryption_key_configured: boolean // TOTP 加密密钥是否已配置
   // Default settings
   default_balance: number
   default_concurrency: number
@@ -25,6 +28,8 @@ export interface SystemSettings {
   doc_url: string
   home_content: string
   hide_ccs_import_button: boolean
+  purchase_subscription_enabled: boolean
+  purchase_subscription_url: string
   // SMTP settings
   smtp_host: string
   smtp_port: number
@@ -66,6 +71,8 @@ export interface UpdateSettingsRequest {
   registration_enabled?: boolean
   email_verify_enabled?: boolean
   promo_code_enabled?: boolean
+  password_reset_enabled?: boolean
+  totp_enabled?: boolean // TOTP 双因素认证
   default_balance?: number
   default_concurrency?: number
   site_name?: string
@@ -76,6 +83,8 @@ export interface UpdateSettingsRequest {
   doc_url?: string
   home_content?: string
   hide_ccs_import_button?: boolean
+  purchase_subscription_enabled?: boolean
+  purchase_subscription_url?: string
   smtp_host?: string
   smtp_port?: number
   smtp_username?: string

frontend/src/api/admin/subscriptions.ts

@@ -17,7 +17,7 @@ import type {
  * List all subscriptions with pagination
  * @param page - Page number (default: 1)
  * @param pageSize - Items per page (default: 20)
- * @param filters - Optional filters (status, user_id, group_id)
+ * @param filters - Optional filters (status, user_id, group_id, sort_by, sort_order)
  * @returns Paginated list of subscriptions
  */
 export async function list(
@@ -27,6 +27,8 @@ export async function list(
     status?: 'active' | 'expired' | 'revoked'
     user_id?: number
     group_id?: number
+    sort_by?: string
+    sort_order?: 'asc' | 'desc'
   },
   options?: {
     signal?: AbortSignal

frontend/src/api/auth.ts

@@ -11,9 +11,23 @@ import type {
   CurrentUserResponse,
   SendVerifyCodeRequest,
   SendVerifyCodeResponse,
-  PublicSettings
+  PublicSettings,
+  TotpLoginResponse,
+  TotpLogin2FARequest
 } from '@/types'
 
+/**
+ * Login response type - can be either full auth or 2FA required
+ */
+export type LoginResponse = AuthResponse | TotpLoginResponse
+
+/**
+ * Type guard to check if login response requires 2FA
+ */
+export function isTotp2FARequired(response: LoginResponse): response is TotpLoginResponse {
+  return 'requires_2fa' in response && response.requires_2fa === true
+}
+
 /**
  * Store authentication token in localStorage
  */
@@ -38,11 +52,28 @@ export function clearAuthToken(): void {
 
 /**
  * User login
- * @param credentials - Username and password
+ * @param credentials - Email and password
+ * @returns Authentication response with token and user data, or 2FA required response
+ */
+export async function login(credentials: LoginRequest): Promise<LoginResponse> {
+  const { data } = await apiClient.post<LoginResponse>('/auth/login', credentials)
+
+  // Only store token if 2FA is not required
+  if (!isTotp2FARequired(data)) {
+    setAuthToken(data.access_token)
+    localStorage.setItem('auth_user', JSON.stringify(data.user))
+  }
+
+  return data
+}
+
+/**
+ * Complete login with 2FA code
+ * @param request - Temp token and TOTP code
  * @returns Authentication response with token and user data
  */
-export async function login(credentials: LoginRequest): Promise<AuthResponse> {
-  const { data } = await apiClient.post<AuthResponse>('/auth/login', credentials)
+export async function login2FA(request: TotpLogin2FARequest): Promise<AuthResponse> {
+  const { data } = await apiClient.post<AuthResponse>('/auth/login/2fa', request)
 
   // Store token and user data
   setAuthToken(data.access_token)
@@ -133,8 +164,61 @@ export async function validatePromoCode(code: string): Promise<ValidatePromoCode
   return data
 }
 
+/**
+ * Forgot password request
+ */
+export interface ForgotPasswordRequest {
+  email: string
+  turnstile_token?: string
+}
+
+/**
+ * Forgot password response
+ */
+export interface ForgotPasswordResponse {
+  message: string
+}
+
+/**
+ * Request password reset link
+ * @param request - Email and optional Turnstile token
+ * @returns Response with message
+ */
+export async function forgotPassword(request: ForgotPasswordRequest): Promise<ForgotPasswordResponse> {
+  const { data } = await apiClient.post<ForgotPasswordResponse>('/auth/forgot-password', request)
+  return data
+}
+
+/**
+ * Reset password request
+ */
+export interface ResetPasswordRequest {
+  email: string
+  token: string
+  new_password: string
+}
+
+/**
+ * Reset password response
+ */
+export interface ResetPasswordResponse {
+  message: string
+}
+
+/**
+ * Reset password with token
+ * @param request - Email, token, and new password
+ * @returns Response with message
+ */
+export async function resetPassword(request: ResetPasswordRequest): Promise<ResetPasswordResponse> {
+  const { data } = await apiClient.post<ResetPasswordResponse>('/auth/reset-password', request)
+  return data
+}
+
 export const authAPI = {
   login,
+  login2FA,
+  isTotp2FARequired,
   register,
   getCurrentUser,
   logout,
@@ -144,7 +228,9 @@ export const authAPI = {
   clearAuthToken,
   getPublicSettings,
   sendVerifyCode,
-  validatePromoCode
+  validatePromoCode,
+  forgotPassword,
+  resetPassword
 }
 
 export default authAPI

frontend/src/api/index.ts

@@ -7,7 +7,7 @@
 export { apiClient } from './client'
 
 // Auth API
-export { authAPI } from './auth'
+export { authAPI, isTotp2FARequired, type LoginResponse } from './auth'
 
 // User APIs
 export { keysAPI } from './keys'
@@ -15,6 +15,7 @@ export { usageAPI } from './usage'
 export { userAPI } from './user'
 export { redeemAPI, type RedeemHistoryItem } from './redeem'
 export { userGroupsAPI } from './groups'
+export { totpAPI } from './totp'
 
 // Admin APIs
 export { adminAPI } from './admin'

frontend/src/api/totp.ts

@@ -0,0 +1,83 @@
+/**
+ * TOTP (2FA) API endpoints
+ * Handles Two-Factor Authentication with Google Authenticator
+ */
+
+import { apiClient } from './client'
+import type {
+  TotpStatus,
+  TotpSetupRequest,
+  TotpSetupResponse,
+  TotpEnableRequest,
+  TotpEnableResponse,
+  TotpDisableRequest,
+  TotpVerificationMethod
+} from '@/types'
+
+/**
+ * Get TOTP status for current user
+ * @returns TOTP status including enabled state and feature availability
+ */
+export async function getStatus(): Promise<TotpStatus> {
+  const { data } = await apiClient.get<TotpStatus>('/user/totp/status')
+  return data
+}
+
+/**
+ * Get verification method for TOTP operations
+ * @returns Method ('email' or 'password') required for setup/disable
+ */
+export async function getVerificationMethod(): Promise<TotpVerificationMethod> {
+  const { data } = await apiClient.get<TotpVerificationMethod>('/user/totp/verification-method')
+  return data
+}
+
+/**
+ * Send email verification code for TOTP operations
+ * @returns Success response
+ */
+export async function sendVerifyCode(): Promise<{ success: boolean }> {
+  const { data } = await apiClient.post<{ success: boolean }>('/user/totp/send-code')
+  return data
+}
+
+/**
+ * Initiate TOTP setup - generates secret and QR code
+ * @param request - Email code or password depending on verification method
+ * @returns Setup response with secret, QR code URL, and setup token
+ */
+export async function initiateSetup(request?: TotpSetupRequest): Promise<TotpSetupResponse> {
+  const { data } = await apiClient.post<TotpSetupResponse>('/user/totp/setup', request || {})
+  return data
+}
+
+/**
+ * Complete TOTP setup by verifying the code
+ * @param request - TOTP code and setup token
+ * @returns Enable response with success status and enabled timestamp
+ */
+export async function enable(request: TotpEnableRequest): Promise<TotpEnableResponse> {
+  const { data } = await apiClient.post<TotpEnableResponse>('/user/totp/enable', request)
+  return data
+}
+
+/**
+ * Disable TOTP for current user
+ * @param request - Email code or password depending on verification method
+ * @returns Success response
+ */
+export async function disable(request: TotpDisableRequest): Promise<{ success: boolean }> {
+  const { data } = await apiClient.post<{ success: boolean }>('/user/totp/disable', request)
+  return data
+}
+
+export const totpAPI = {
+  getStatus,
+  getVerificationMethod,
+  sendVerifyCode,
+  initiateSetup,
+  enable,
+  disable
+}
+
+export default totpAPI

frontend/src/components/auth/TotpLoginModal.vue

@@ -0,0 +1,176 @@
+<template>
+  <div class="fixed inset-0 z-50 overflow-y-auto">
+    <div class="flex min-h-full items-center justify-center p-4">
+      <div class="fixed inset-0 bg-black/50 transition-opacity"></div>
+
+      <div class="relative w-full max-w-md transform rounded-xl bg-white p-6 shadow-xl transition-all dark:bg-dark-800">
+        <!-- Header -->
+        <div class="mb-6 text-center">
+          <div class="mx-auto flex h-12 w-12 items-center justify-center rounded-full bg-primary-100 dark:bg-primary-900/30">
+            <svg class="h-6 w-6 text-primary-600 dark:text-primary-400" fill="none" viewBox="0 0 24 24" stroke="currentColor" stroke-width="1.5">
+              <path stroke-linecap="round" stroke-linejoin="round" d="M9 12.75L11.25 15 15 9.75m-3-7.036A11.959 11.959 0 013.598 6 11.99 11.99 0 003 9.749c0 5.592 3.824 10.29 9 11.623 5.176-1.332 9-6.03 9-11.622 0-1.31-.21-2.571-.598-3.751h-.152c-3.196 0-6.1-1.248-8.25-3.285z" />
+            </svg>
+          </div>
+          <h3 class="mt-4 text-xl font-semibold text-gray-900 dark:text-white">
+            {{ t('profile.totp.loginTitle') }}
+          </h3>
+          <p class="mt-2 text-sm text-gray-500 dark:text-gray-400">
+            {{ t('profile.totp.loginHint') }}
+          </p>
+          <p v-if="userEmailMasked" class="mt-1 text-sm font-medium text-gray-700 dark:text-gray-300">
+            {{ userEmailMasked }}
+          </p>
+        </div>
+
+        <!-- Code Input -->
+        <div class="mb-6">
+          <div class="flex justify-center gap-2">
+            <input
+              v-for="(_, index) in 6"
+              :key="index"
+              :ref="(el) => setInputRef(el, index)"
+              type="text"
+              maxlength="1"
+              inputmode="numeric"
+              pattern="[0-9]"
+              class="h-12 w-10 rounded-lg border border-gray-300 text-center text-lg font-semibold focus:border-primary-500 focus:ring-primary-500 dark:border-dark-600 dark:bg-dark-700"
+              :disabled="verifying"
+              @input="handleCodeInput($event, index)"
+              @keydown="handleKeydown($event, index)"
+              @paste="handlePaste"
+            />
+          </div>
+          <!-- Loading indicator -->
+          <div v-if="verifying" class="mt-3 flex items-center justify-center gap-2 text-sm text-gray-500">
+            <div class="animate-spin rounded-full h-4 w-4 border-b-2 border-primary-500"></div>
+            {{ t('common.verifying') }}
+          </div>
+        </div>
+
+        <!-- Error -->
+        <div v-if="error" class="mb-4 rounded-lg bg-red-50 p-3 text-sm text-red-700 dark:bg-red-900/30 dark:text-red-400">
+          {{ error }}
+        </div>
+
+        <!-- Cancel button only -->
+        <button
+          type="button"
+          class="btn btn-secondary w-full"
+          :disabled="verifying"
+          @click="$emit('cancel')"
+        >
+          {{ t('common.cancel') }}
+        </button>
+      </div>
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { ref, watch, nextTick, onMounted } from 'vue'
+import { useI18n } from 'vue-i18n'
+
+defineProps<{
+  tempToken: string
+  userEmailMasked?: string
+}>()
+
+const emit = defineEmits<{
+  verify: [code: string]
+  cancel: []
+}>()
+
+const { t } = useI18n()
+
+const verifying = ref(false)
+const error = ref('')
+const code = ref<string[]>(['', '', '', '', '', ''])
+const inputRefs = ref<(HTMLInputElement | null)[]>([])
+
+// Watch for code changes and auto-submit when 6 digits are entered
+watch(
+  () => code.value.join(''),
+  (newCode) => {
+    if (newCode.length === 6 && !verifying.value) {
+      emit('verify', newCode)
+    }
+  }
+)
+
+defineExpose({
+  setVerifying: (value: boolean) => { verifying.value = value },
+  setError: (message: string) => {
+    error.value = message
+    code.value = ['', '', '', '', '', '']
+    // Clear input DOM values
+    inputRefs.value.forEach(input => {
+      if (input) input.value = ''
+    })
+    nextTick(() => {
+      inputRefs.value[0]?.focus()
+    })
+  }
+})
+
+const setInputRef = (el: any, index: number) => {
+  inputRefs.value[index] = el as HTMLInputElement | null
+}
+
+const handleCodeInput = (event: Event, index: number) => {
+  const input = event.target as HTMLInputElement
+  const value = input.value.replace(/[^0-9]/g, '')
+  code.value[index] = value
+
+  if (value && index < 5) {
+    nextTick(() => {
+      inputRefs.value[index + 1]?.focus()
+    })
+  }
+}
+
+const handleKeydown = (event: KeyboardEvent, index: number) => {
+  if (event.key === 'Backspace') {
+    const input = event.target as HTMLInputElement
+    // If current cell is empty and not the first, move to previous cell
+    if (!input.value && index > 0) {
+      event.preventDefault()
+      inputRefs.value[index - 1]?.focus()
+    }
+    // Otherwise, let the browser handle the backspace naturally
+    // The input event will sync code.value via handleCodeInput
+  }
+}
+
+const handlePaste = (event: ClipboardEvent) => {
+  event.preventDefault()
+  const pastedData = event.clipboardData?.getData('text') || ''
+  const digits = pastedData.replace(/[^0-9]/g, '').slice(0, 6).split('')
+
+  // Update both the ref and the input elements
+  digits.forEach((digit, index) => {
+    code.value[index] = digit
+    if (inputRefs.value[index]) {
+      inputRefs.value[index]!.value = digit
+    }
+  })
+
+  // Clear remaining inputs if pasted less than 6 digits
+  for (let i = digits.length; i < 6; i++) {
+    code.value[i] = ''
+    if (inputRefs.value[i]) {
+      inputRefs.value[i]!.value = ''
+    }
+  }
+
+  const focusIndex = Math.min(digits.length, 5)
+  nextTick(() => {
+    inputRefs.value[focusIndex]?.focus()
+  })
+}
+
+onMounted(() => {
+  nextTick(() => {
+    inputRefs.value[0]?.focus()
+  })
+})
+</script>

frontend/src/components/common/DataTable.vue

@@ -181,6 +181,10 @@ import Icon from '@/components/icons/Icon.vue'
 
 const { t } = useI18n()
 
+const emit = defineEmits<{
+  sort: [key: string, order: 'asc' | 'desc']
+}>()
+
 // 表格容器引用
 const tableWrapperRef = ref<HTMLElement | null>(null)
 const isScrollable = ref(false)
@@ -289,6 +293,11 @@ interface Props {
    * If provided, DataTable will load the stored sort state on mount.
    */
   sortStorageKey?: string
+  /**
+   * Enable server-side sorting mode. When true, clicking sort headers
+   * will emit 'sort' events instead of performing client-side sorting.
+   */
+  serverSideSort?: boolean
 }
 
 const props = withDefaults(defineProps<Props>(), {
@@ -296,7 +305,8 @@ const props = withDefaults(defineProps<Props>(), {
   stickyFirstColumn: true,
   stickyActionsColumn: true,
   expandableActions: true,
-  defaultSortOrder: 'asc'
+  defaultSortOrder: 'asc',
+  serverSideSort: false
 })
 
 const sortKey = ref<string>('')
@@ -448,16 +458,26 @@ watch(actionsExpanded, async () => {
 })
 
 const handleSort = (key: string) => {
+  let newOrder: 'asc' | 'desc' = 'asc'
   if (sortKey.value === key) {
-    sortOrder.value = sortOrder.value === 'asc' ? 'desc' : 'asc'
-  } else {
+    newOrder = sortOrder.value === 'asc' ? 'desc' : 'asc'
+  }
+
+  if (props.serverSideSort) {
+    // Server-side sort mode: emit event and update internal state for UI feedback
     sortKey.value = key
-    sortOrder.value = 'asc'
+    sortOrder.value = newOrder
+    emit('sort', key, newOrder)
+  } else {
+    // Client-side sort mode: just update internal state
+    sortKey.value = key
+    sortOrder.value = newOrder
   }
 }
 
 const sortedData = computed(() => {
-  if (!sortKey.value || !props.data) return props.data
+  // Server-side sort mode: return data as-is (server handles sorting)
+  if (props.serverSideSort || !sortKey.value || !props.data) return props.data
 
   const key = sortKey.value
   const order = sortOrder.value

frontend/src/components/layout/AppSidebar.vue

@@ -421,6 +421,16 @@ const userNavItems = computed(() => {
     { path: '/keys', label: t('nav.apiKeys'), icon: KeyIcon },
     { path: '/usage', label: t('nav.usage'), icon: ChartIcon, hideInSimpleMode: true },
     { path: '/subscriptions', label: t('nav.mySubscriptions'), icon: CreditCardIcon, hideInSimpleMode: true },
+    ...(appStore.cachedPublicSettings?.purchase_subscription_enabled
+      ? [
+          {
+            path: '/purchase',
+            label: t('nav.buySubscription'),
+            icon: CreditCardIcon,
+            hideInSimpleMode: true
+          }
+        ]
+      : []),
     { path: '/redeem', label: t('nav.redeem'), icon: GiftIcon, hideInSimpleMode: true },
     { path: '/profile', label: t('nav.profile'), icon: UserIcon }
   ]
@@ -433,6 +443,16 @@ const personalNavItems = computed(() => {
     { path: '/keys', label: t('nav.apiKeys'), icon: KeyIcon },
     { path: '/usage', label: t('nav.usage'), icon: ChartIcon, hideInSimpleMode: true },
     { path: '/subscriptions', label: t('nav.mySubscriptions'), icon: CreditCardIcon, hideInSimpleMode: true },
+    ...(appStore.cachedPublicSettings?.purchase_subscription_enabled
+      ? [
+          {
+            path: '/purchase',
+            label: t('nav.buySubscription'),
+            icon: CreditCardIcon,
+            hideInSimpleMode: true
+          }
+        ]
+      : []),
     { path: '/redeem', label: t('nav.redeem'), icon: GiftIcon, hideInSimpleMode: true },
     { path: '/profile', label: t('nav.profile'), icon: UserIcon }
   ]

frontend/src/components/user/profile/ProfileTotpCard.vue

@@ -0,0 +1,154 @@
+<template>
+  <div class="card">
+    <div class="border-b border-gray-100 px-6 py-4 dark:border-dark-700">
+      <h2 class="text-lg font-medium text-gray-900 dark:text-white">
+        {{ t('profile.totp.title') }}
+      </h2>
+      <p class="mt-1 text-sm text-gray-500 dark:text-gray-400">
+        {{ t('profile.totp.description') }}
+      </p>
+    </div>
+    <div class="px-6 py-6">
+      <!-- Loading state -->
+      <div v-if="loading" class="flex items-center justify-center py-8">
+        <div class="animate-spin rounded-full h-8 w-8 border-b-2 border-primary-500"></div>
+      </div>
+
+      <!-- Feature disabled globally -->
+      <div v-else-if="status && !status.feature_enabled" class="flex items-center gap-4 py-4">
+        <div class="flex-shrink-0 rounded-full bg-gray-100 p-3 dark:bg-dark-700">
+          <svg class="h-6 w-6 text-gray-400" fill="none" viewBox="0 0 24 24" stroke="currentColor" stroke-width="1.5">
+            <path stroke-linecap="round" stroke-linejoin="round" d="M12 9v3.75m-9.303 3.376c-.866 1.5.217 3.374 1.948 3.374h14.71c1.73 0 2.813-1.874 1.948-3.374L13.949 3.378c-.866-1.5-3.032-1.5-3.898 0L2.697 16.126zM12 15.75h.007v.008H12v-.008z" />
+          </svg>
+        </div>
+        <div>
+          <p class="font-medium text-gray-700 dark:text-gray-300">
+            {{ t('profile.totp.featureDisabled') }}
+          </p>
+          <p class="text-sm text-gray-500 dark:text-gray-400">
+            {{ t('profile.totp.featureDisabledHint') }}
+          </p>
+        </div>
+      </div>
+
+      <!-- 2FA Enabled -->
+      <div v-else-if="status?.enabled" class="flex items-center justify-between">
+        <div class="flex items-center gap-4">
+          <div class="flex-shrink-0 rounded-full bg-green-100 p-3 dark:bg-green-900/30">
+            <svg class="h-6 w-6 text-green-600 dark:text-green-400" fill="none" viewBox="0 0 24 24" stroke="currentColor" stroke-width="1.5">
+              <path stroke-linecap="round" stroke-linejoin="round" d="M9 12.75L11.25 15 15 9.75m-3-7.036A11.959 11.959 0 013.598 6 11.99 11.99 0 003 9.749c0 5.592 3.824 10.29 9 11.623 5.176-1.332 9-6.03 9-11.622 0-1.31-.21-2.571-.598-3.751h-.152c-3.196 0-6.1-1.248-8.25-3.285z" />
+            </svg>
+          </div>
+          <div>
+            <p class="font-medium text-gray-900 dark:text-white">
+              {{ t('profile.totp.enabled') }}
+            </p>
+            <p v-if="status.enabled_at" class="text-sm text-gray-500 dark:text-gray-400">
+              {{ t('profile.totp.enabledAt') }}: {{ formatDate(status.enabled_at) }}
+            </p>
+          </div>
+        </div>
+        <button
+          type="button"
+          class="btn btn-outline-danger"
+          @click="showDisableDialog = true"
+        >
+          {{ t('profile.totp.disable') }}
+        </button>
+      </div>
+
+      <!-- 2FA Not Enabled -->
+      <div v-else class="flex items-center justify-between">
+        <div class="flex items-center gap-4">
+          <div class="flex-shrink-0 rounded-full bg-gray-100 p-3 dark:bg-dark-700">
+            <svg class="h-6 w-6 text-gray-400" fill="none" viewBox="0 0 24 24" stroke="currentColor" stroke-width="1.5">
+              <path stroke-linecap="round" stroke-linejoin="round" d="M9 12.75L11.25 15 15 9.75m-3-7.036A11.959 11.959 0 013.598 6 11.99 11.99 0 003 9.749c0 5.592 3.824 10.29 9 11.623 5.176-1.332 9-6.03 9-11.622 0-1.31-.21-2.571-.598-3.751h-.152c-3.196 0-6.1-1.248-8.25-3.285z" />
+            </svg>
+          </div>
+          <div>
+            <p class="font-medium text-gray-700 dark:text-gray-300">
+              {{ t('profile.totp.notEnabled') }}
+            </p>
+            <p class="text-sm text-gray-500 dark:text-gray-400">
+              {{ t('profile.totp.notEnabledHint') }}
+            </p>
+          </div>
+        </div>
+        <button
+          type="button"
+          class="btn btn-primary"
+          @click="showSetupModal = true"
+        >
+          {{ t('profile.totp.enable') }}
+        </button>
+      </div>
+    </div>
+
+    <!-- Setup Modal -->
+    <TotpSetupModal
+      v-if="showSetupModal"
+      @close="showSetupModal = false"
+      @success="handleSetupSuccess"
+    />
+
+    <!-- Disable Dialog -->
+    <TotpDisableDialog
+      v-if="showDisableDialog"
+      @close="showDisableDialog = false"
+      @success="handleDisableSuccess"
+    />
+  </div>
+</template>
+
+<script setup lang="ts">
+import { ref, onMounted } from 'vue'
+import { useI18n } from 'vue-i18n'
+import { totpAPI } from '@/api'
+import type { TotpStatus } from '@/types'
+import TotpSetupModal from './TotpSetupModal.vue'
+import TotpDisableDialog from './TotpDisableDialog.vue'
+
+const { t } = useI18n()
+
+const loading = ref(true)
+const status = ref<TotpStatus | null>(null)
+const showSetupModal = ref(false)
+const showDisableDialog = ref(false)
+
+const loadStatus = async () => {
+  loading.value = true
+  try {
+    status.value = await totpAPI.getStatus()
+  } catch (error) {
+    console.error('Failed to load TOTP status:', error)
+  } finally {
+    loading.value = false
+  }
+}
+
+const handleSetupSuccess = () => {
+  showSetupModal.value = false
+  loadStatus()
+}
+
+const handleDisableSuccess = () => {
+  showDisableDialog.value = false
+  loadStatus()
+}
+
+const formatDate = (timestamp: number) => {
+  // Backend returns Unix timestamp in seconds, convert to milliseconds
+  const date = new Date(timestamp * 1000)
+  return date.toLocaleDateString(undefined, {
+    year: 'numeric',
+    month: 'long',
+    day: 'numeric',
+    hour: '2-digit',
+    minute: '2-digit'
+  })
+}
+
+onMounted(() => {
+  loadStatus()
+})
+</script>

frontend/src/components/user/profile/TotpDisableDialog.vue

@@ -0,0 +1,179 @@
+<template>
+  <div class="fixed inset-0 z-50 overflow-y-auto" @click.self="$emit('close')">
+    <div class="flex min-h-full items-center justify-center p-4">
+      <div class="fixed inset-0 bg-black/50 transition-opacity" @click="$emit('close')"></div>
+
+      <div class="relative w-full max-w-md transform rounded-xl bg-white p-6 shadow-xl transition-all dark:bg-dark-800">
+        <!-- Header -->
+        <div class="mb-6">
+          <div class="mx-auto flex h-12 w-12 items-center justify-center rounded-full bg-red-100 dark:bg-red-900/30">
+            <svg class="h-6 w-6 text-red-600 dark:text-red-400" fill="none" viewBox="0 0 24 24" stroke="currentColor" stroke-width="1.5">
+              <path stroke-linecap="round" stroke-linejoin="round" d="M12 9v3.75m-9.303 3.376c-.866 1.5.217 3.374 1.948 3.374h14.71c1.73 0 2.813-1.874 1.948-3.374L13.949 3.378c-.866-1.5-3.032-1.5-3.898 0L2.697 16.126zM12 15.75h.007v.008H12v-.008z" />
+            </svg>
+          </div>
+          <h3 class="mt-4 text-center text-xl font-semibold text-gray-900 dark:text-white">
+            {{ t('profile.totp.disableTitle') }}
+          </h3>
+          <p class="mt-2 text-center text-sm text-gray-500 dark:text-gray-400">
+            {{ t('profile.totp.disableWarning') }}
+          </p>
+        </div>
+
+        <!-- Loading verification method -->
+        <div v-if="methodLoading" class="flex items-center justify-center py-8">
+          <div class="animate-spin rounded-full h-8 w-8 border-b-2 border-primary-500"></div>
+        </div>
+
+        <form v-else @submit.prevent="handleDisable" class="space-y-4">
+          <!-- Email verification -->
+          <div v-if="verificationMethod === 'email'">
+            <label class="input-label">{{ t('profile.totp.emailCode') }}</label>
+            <div class="flex gap-2">
+              <input
+                v-model="form.emailCode"
+                type="text"
+                maxlength="6"
+                inputmode="numeric"
+                class="input flex-1"
+                :placeholder="t('profile.totp.enterEmailCode')"
+              />
+              <button
+                type="button"
+                class="btn btn-secondary whitespace-nowrap"
+                :disabled="sendingCode || codeCooldown > 0"
+                @click="handleSendCode"
+              >
+                {{ codeCooldown > 0 ? `${codeCooldown}s` : (sendingCode ? t('common.sending') : t('profile.totp.sendCode')) }}
+              </button>
+            </div>
+          </div>
+
+          <!-- Password verification -->
+          <div v-else>
+            <label for="password" class="input-label">
+              {{ t('profile.currentPassword') }}
+            </label>
+            <input
+              id="password"
+              v-model="form.password"
+              type="password"
+              autocomplete="current-password"
+              class="input"
+              :placeholder="t('profile.totp.enterPassword')"
+            />
+          </div>
+
+          <!-- Error -->
+          <div v-if="error" class="rounded-lg bg-red-50 p-3 text-sm text-red-700 dark:bg-red-900/30 dark:text-red-400">
+            {{ error }}
+          </div>
+
+          <!-- Actions -->
+          <div class="flex justify-end gap-3 pt-4">
+            <button type="button" class="btn btn-secondary" @click="$emit('close')">
+              {{ t('common.cancel') }}
+            </button>
+            <button
+              type="submit"
+              class="btn btn-danger"
+              :disabled="loading || !canSubmit"
+            >
+              {{ loading ? t('common.processing') : t('profile.totp.confirmDisable') }}
+            </button>
+          </div>
+        </form>
+      </div>
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { ref, onMounted, computed } from 'vue'
+import { useI18n } from 'vue-i18n'
+import { useAppStore } from '@/stores/app'
+import { totpAPI } from '@/api'
+
+const emit = defineEmits<{
+  close: []
+  success: []
+}>()
+
+const { t } = useI18n()
+const appStore = useAppStore()
+
+const methodLoading = ref(true)
+const verificationMethod = ref<'email' | 'password'>('password')
+const loading = ref(false)
+const error = ref('')
+const sendingCode = ref(false)
+const codeCooldown = ref(0)
+const form = ref({
+  emailCode: '',
+  password: ''
+})
+
+const canSubmit = computed(() => {
+  if (verificationMethod.value === 'email') {
+    return form.value.emailCode.length === 6
+  }
+  return form.value.password.length > 0
+})
+
+const loadVerificationMethod = async () => {
+  methodLoading.value = true
+  try {
+    const method = await totpAPI.getVerificationMethod()
+    verificationMethod.value = method.method
+  } catch (err: any) {
+    appStore.showError(err.response?.data?.message || t('common.error'))
+    emit('close')
+  } finally {
+    methodLoading.value = false
+  }
+}
+
+const handleSendCode = async () => {
+  sendingCode.value = true
+  try {
+    await totpAPI.sendVerifyCode()
+    appStore.showSuccess(t('profile.totp.codeSent'))
+    // Start cooldown
+    codeCooldown.value = 60
+    const timer = setInterval(() => {
+      codeCooldown.value--
+      if (codeCooldown.value <= 0) {
+        clearInterval(timer)
+      }
+    }, 1000)
+  } catch (err: any) {
+    appStore.showError(err.response?.data?.message || t('profile.totp.sendCodeFailed'))
+  } finally {
+    sendingCode.value = false
+  }
+}
+
+const handleDisable = async () => {
+  if (!canSubmit.value) return
+
+  loading.value = true
+  error.value = ''
+
+  try {
+    const request = verificationMethod.value === 'email'
+      ? { email_code: form.value.emailCode }
+      : { password: form.value.password }
+
+    await totpAPI.disable(request)
+    appStore.showSuccess(t('profile.totp.disableSuccess'))
+    emit('success')
+  } catch (err: any) {
+    error.value = err.response?.data?.message || t('profile.totp.disableFailed')
+  } finally {
+    loading.value = false
+  }
+}
+
+onMounted(() => {
+  loadVerificationMethod()
+})
+</script>

frontend/src/components/user/profile/TotpSetupModal.vue

@@ -0,0 +1,400 @@
+<template>
+  <div class="fixed inset-0 z-50 overflow-y-auto" @click.self="$emit('close')">
+    <div class="flex min-h-full items-center justify-center p-4">
+      <div class="fixed inset-0 bg-black/50 transition-opacity" @click="$emit('close')"></div>
+
+      <div class="relative w-full max-w-md transform rounded-xl bg-white p-6 shadow-xl transition-all dark:bg-dark-800">
+        <!-- Header -->
+        <div class="mb-6 text-center">
+          <h3 class="text-xl font-semibold text-gray-900 dark:text-white">
+            {{ t('profile.totp.setupTitle') }}
+          </h3>
+          <p class="mt-2 text-sm text-gray-500 dark:text-gray-400">
+            {{ stepDescription }}
+          </p>
+        </div>
+
+        <!-- Step 0: Identity Verification -->
+        <div v-if="step === 0" class="space-y-6">
+          <!-- Loading verification method -->
+          <div v-if="methodLoading" class="flex items-center justify-center py-8">
+            <div class="animate-spin rounded-full h-8 w-8 border-b-2 border-primary-500"></div>
+          </div>
+
+          <template v-else>
+            <!-- Email verification -->
+            <div v-if="verificationMethod === 'email'" class="space-y-4">
+              <div>
+                <label class="input-label">{{ t('profile.totp.emailCode') }}</label>
+                <div class="flex gap-2">
+                  <input
+                    v-model="verifyForm.emailCode"
+                    type="text"
+                    maxlength="6"
+                    inputmode="numeric"
+                    class="input flex-1"
+                    :placeholder="t('profile.totp.enterEmailCode')"
+                  />
+                  <button
+                    type="button"
+                    class="btn btn-secondary whitespace-nowrap"
+                    :disabled="sendingCode || codeCooldown > 0"
+                    @click="handleSendCode"
+                  >
+                    {{ codeCooldown > 0 ? `${codeCooldown}s` : (sendingCode ? t('common.sending') : t('profile.totp.sendCode')) }}
+                  </button>
+                </div>
+              </div>
+            </div>
+
+            <!-- Password verification -->
+            <div v-else class="space-y-4">
+              <div>
+                <label class="input-label">{{ t('profile.currentPassword') }}</label>
+                <input
+                  v-model="verifyForm.password"
+                  type="password"
+                  autocomplete="current-password"
+                  class="input"
+                  :placeholder="t('profile.totp.enterPassword')"
+                />
+              </div>
+            </div>
+
+            <div v-if="verifyError" class="rounded-lg bg-red-50 p-3 text-sm text-red-700 dark:bg-red-900/30 dark:text-red-400">
+              {{ verifyError }}
+            </div>
+
+            <div class="flex justify-end gap-3 pt-4">
+              <button type="button" class="btn btn-secondary" @click="$emit('close')">
+                {{ t('common.cancel') }}
+              </button>
+              <button
+                type="button"
+                class="btn btn-primary"
+                :disabled="!canProceedFromVerify || setupLoading"
+                @click="handleVerifyAndSetup"
+              >
+                {{ setupLoading ? t('common.loading') : t('common.next') }}
+              </button>
+            </div>
+          </template>
+        </div>
+
+        <!-- Step 1: Show QR Code -->
+        <div v-if="step === 1" class="space-y-6">
+          <!-- QR Code and Secret -->
+          <template v-if="setupData">
+            <div class="flex justify-center">
+              <div class="rounded-lg border border-gray-200 p-4 bg-white dark:border-dark-600 dark:bg-white">
+                <img :src="qrCodeDataUrl" alt="QR Code" class="h-48 w-48" />
+              </div>
+            </div>
+
+            <div class="text-center">
+              <p class="text-sm text-gray-500 dark:text-gray-400 mb-2">
+                {{ t('profile.totp.manualEntry') }}
+              </p>
+              <div class="flex items-center justify-center gap-2">
+                <code class="rounded bg-gray-100 px-3 py-2 font-mono text-sm dark:bg-dark-700">
+                  {{ setupData.secret }}
+                </code>
+                <button
+                  type="button"
+                  class="rounded p-1.5 text-gray-500 hover:bg-gray-100 dark:hover:bg-dark-700"
+                  @click="copySecret"
+                >
+                  <svg class="h-5 w-5" fill="none" viewBox="0 0 24 24" stroke="currentColor" stroke-width="1.5">
+                    <path stroke-linecap="round" stroke-linejoin="round" d="M15.666 3.888A2.25 2.25 0 0013.5 2.25h-3c-1.03 0-1.9.693-2.166 1.638m7.332 0c.055.194.084.4.084.612v0a.75.75 0 01-.75.75H9a.75.75 0 01-.75-.75v0c0-.212.03-.418.084-.612m7.332 0c.646.049 1.288.11 1.927.184 1.1.128 1.907 1.077 1.907 2.185V19.5a2.25 2.25 0 01-2.25 2.25H6.75A2.25 2.25 0 014.5 19.5V6.257c0-1.108.806-2.057 1.907-2.185a48.208 48.208 0 011.927-.184" />
+                  </svg>
+                </button>
+              </div>
+            </div>
+          </template>
+
+          <div class="flex justify-end gap-3 pt-4">
+            <button type="button" class="btn btn-secondary" @click="$emit('close')">
+              {{ t('common.cancel') }}
+            </button>
+            <button
+              type="button"
+              class="btn btn-primary"
+              :disabled="!setupData"
+              @click="step = 2"
+            >
+              {{ t('common.next') }}
+            </button>
+          </div>
+        </div>
+
+        <!-- Step 2: Verify Code -->
+        <div v-if="step === 2" class="space-y-6">
+          <form @submit.prevent="handleVerify">
+            <div class="mb-6">
+              <label class="input-label text-center block mb-3">
+                {{ t('profile.totp.enterCode') }}
+              </label>
+              <div class="flex justify-center gap-2">
+                <input
+                  v-for="(_, index) in 6"
+                  :key="index"
+                  :ref="(el) => setInputRef(el, index)"
+                  type="text"
+                  maxlength="1"
+                  inputmode="numeric"
+                  pattern="[0-9]"
+                  class="h-12 w-10 rounded-lg border border-gray-300 text-center text-lg font-semibold focus:border-primary-500 focus:ring-primary-500 dark:border-dark-600 dark:bg-dark-700"
+                  @input="handleCodeInput($event, index)"
+                  @keydown="handleKeydown($event, index)"
+                  @paste="handlePaste"
+                />
+              </div>
+            </div>
+
+            <div v-if="error" class="mb-4 rounded-lg bg-red-50 p-3 text-sm text-red-700 dark:bg-red-900/30 dark:text-red-400">
+              {{ error }}
+            </div>
+
+            <div class="flex justify-end gap-3">
+              <button type="button" class="btn btn-secondary" @click="step = 1">
+                {{ t('common.back') }}
+              </button>
+              <button
+                type="submit"
+                class="btn btn-primary"
+                :disabled="verifying || code.join('').length !== 6"
+              >
+                {{ verifying ? t('common.verifying') : t('profile.totp.verify') }}
+              </button>
+            </div>
+          </form>
+        </div>
+      </div>
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { ref, onMounted, nextTick, watch, computed } from 'vue'
+import { useI18n } from 'vue-i18n'
+import { useAppStore } from '@/stores/app'
+import { totpAPI } from '@/api'
+import type { TotpSetupResponse } from '@/types'
+import QRCode from 'qrcode'
+
+const emit = defineEmits<{
+  close: []
+  success: []
+}>()
+
+const { t } = useI18n()
+const appStore = useAppStore()
+
+// Step: 0 = verify identity, 1 = QR code, 2 = verify TOTP code
+const step = ref(0)
+const methodLoading = ref(true)
+const verificationMethod = ref<'email' | 'password'>('password')
+const verifyForm = ref({ emailCode: '', password: '' })
+const verifyError = ref('')
+const sendingCode = ref(false)
+const codeCooldown = ref(0)
+
+const setupLoading = ref(false)
+const setupData = ref<TotpSetupResponse | null>(null)
+const verifying = ref(false)
+const error = ref('')
+const code = ref<string[]>(['', '', '', '', '', ''])
+const inputRefs = ref<(HTMLInputElement | null)[]>([])
+const qrCodeDataUrl = ref('')
+
+const stepDescription = computed(() => {
+  switch (step.value) {
+    case 0:
+      return verificationMethod.value === 'email'
+        ? t('profile.totp.verifyEmailFirst')
+        : t('profile.totp.verifyPasswordFirst')
+    case 1:
+      return t('profile.totp.setupStep1')
+    case 2:
+      return t('profile.totp.setupStep2')
+    default:
+      return ''
+  }
+})
+
+const canProceedFromVerify = computed(() => {
+  if (verificationMethod.value === 'email') {
+    return verifyForm.value.emailCode.length === 6
+  }
+  return verifyForm.value.password.length > 0
+})
+
+// Generate QR code as base64 when setupData changes
+watch(
+  () => setupData.value?.qr_code_url,
+  async (url) => {
+    if (url) {
+      try {
+        qrCodeDataUrl.value = await QRCode.toDataURL(url, {
+          width: 200,
+          margin: 2,
+          color: {
+            dark: '#000000',
+            light: '#ffffff'
+          }
+        })
+      } catch (err) {
+        console.error('Failed to generate QR code:', err)
+      }
+    }
+  },
+  { immediate: true }
+)
+
+const setInputRef = (el: any, index: number) => {
+  inputRefs.value[index] = el as HTMLInputElement | null
+}
+
+const handleCodeInput = (event: Event, index: number) => {
+  const input = event.target as HTMLInputElement
+  const value = input.value.replace(/[^0-9]/g, '')
+  code.value[index] = value
+
+  if (value && index < 5) {
+    nextTick(() => {
+      inputRefs.value[index + 1]?.focus()
+    })
+  }
+}
+
+const handleKeydown = (event: KeyboardEvent, index: number) => {
+  if (event.key === 'Backspace') {
+    const input = event.target as HTMLInputElement
+    // If current cell is empty and not the first, move to previous cell
+    if (!input.value && index > 0) {
+      event.preventDefault()
+      inputRefs.value[index - 1]?.focus()
+    }
+    // Otherwise, let the browser handle the backspace naturally
+    // The input event will sync code.value via handleCodeInput
+  }
+}
+
+const handlePaste = (event: ClipboardEvent) => {
+  event.preventDefault()
+  const pastedData = event.clipboardData?.getData('text') || ''
+  const digits = pastedData.replace(/[^0-9]/g, '').slice(0, 6).split('')
+
+  // Update both the ref and the input elements
+  digits.forEach((digit, index) => {
+    code.value[index] = digit
+    if (inputRefs.value[index]) {
+      inputRefs.value[index]!.value = digit
+    }
+  })
+
+  // Clear remaining inputs if pasted less than 6 digits
+  for (let i = digits.length; i < 6; i++) {
+    code.value[i] = ''
+    if (inputRefs.value[i]) {
+      inputRefs.value[i]!.value = ''
+    }
+  }
+
+  const focusIndex = Math.min(digits.length, 5)
+  nextTick(() => {
+    inputRefs.value[focusIndex]?.focus()
+  })
+}
+
+const copySecret = async () => {
+  if (setupData.value) {
+    try {
+      await navigator.clipboard.writeText(setupData.value.secret)
+      appStore.showSuccess(t('common.copied'))
+    } catch {
+      appStore.showError(t('common.copyFailed'))
+    }
+  }
+}
+
+const loadVerificationMethod = async () => {
+  methodLoading.value = true
+  try {
+    const method = await totpAPI.getVerificationMethod()
+    verificationMethod.value = method.method
+  } catch (err: any) {
+    appStore.showError(err.response?.data?.message || t('common.error'))
+    emit('close')
+  } finally {
+    methodLoading.value = false
+  }
+}
+
+const handleSendCode = async () => {
+  sendingCode.value = true
+  try {
+    await totpAPI.sendVerifyCode()
+    appStore.showSuccess(t('profile.totp.codeSent'))
+    // Start cooldown
+    codeCooldown.value = 60
+    const timer = setInterval(() => {
+      codeCooldown.value--
+      if (codeCooldown.value <= 0) {
+        clearInterval(timer)
+      }
+    }, 1000)
+  } catch (err: any) {
+    appStore.showError(err.response?.data?.message || t('profile.totp.sendCodeFailed'))
+  } finally {
+    sendingCode.value = false
+  }
+}
+
+const handleVerifyAndSetup = async () => {
+  setupLoading.value = true
+  verifyError.value = ''
+
+  try {
+    const request = verificationMethod.value === 'email'
+      ? { email_code: verifyForm.value.emailCode }
+      : { password: verifyForm.value.password }
+
+    setupData.value = await totpAPI.initiateSetup(request)
+    step.value = 1
+  } catch (err: any) {
+    verifyError.value = err.response?.data?.message || t('profile.totp.setupFailed')
+  } finally {
+    setupLoading.value = false
+  }
+}
+
+const handleVerify = async () => {
+  const totpCode = code.value.join('')
+  if (totpCode.length !== 6 || !setupData.value) return
+
+  verifying.value = true
+  error.value = ''
+
+  try {
+    await totpAPI.enable({
+      totp_code: totpCode,
+      setup_token: setupData.value.setup_token
+    })
+    appStore.showSuccess(t('profile.totp.enableSuccess'))
+    emit('success')
+  } catch (err: any) {
+    error.value = err.response?.data?.message || t('profile.totp.verifyFailed')
+    code.value = ['', '', '', '', '', '']
+    nextTick(() => {
+      inputRefs.value[0]?.focus()
+    })
+  } finally {
+    verifying.value = false
+  }
+}
+
+onMounted(() => {
+  loadVerificationMethod()
+})
+</script>

frontend/src/i18n/locales/en.ts

@@ -146,7 +146,10 @@ export default {
     balance: 'Balance',
     available: 'Available',
     copiedToClipboard: 'Copied to clipboard',
+    copied: 'Copied',
     copyFailed: 'Failed to copy',
+    verifying: 'Verifying...',
+    processing: 'Processing...',
     contactSupport: 'Contact Support',
     add: 'Add',
     invalidEmail: 'Please enter a valid email address',
@@ -203,6 +206,7 @@ export default {
     logout: 'Logout',
     github: 'GitHub',
     mySubscriptions: 'My Subscriptions',
+    buySubscription: 'Purchase Subscription',
     docs: 'Docs'
   },
 
@@ -271,7 +275,36 @@ export default {
       code: 'Code',
       state: 'State',
       fullUrl: 'Full URL'
-    }
+    },
+    // Forgot password
+    forgotPassword: 'Forgot password?',
+    forgotPasswordTitle: 'Reset Your Password',
+    forgotPasswordHint: 'Enter your email address and we will send you a link to reset your password.',
+    sendResetLink: 'Send Reset Link',
+    sendingResetLink: 'Sending...',
+    sendResetLinkFailed: 'Failed to send reset link. Please try again.',
+    resetEmailSent: 'Reset Link Sent',
+    resetEmailSentHint: 'If an account exists with this email, you will receive a password reset link shortly. Please check your inbox and spam folder.',
+    backToLogin: 'Back to Login',
+    rememberedPassword: 'Remembered your password?',
+    // Reset password
+    resetPasswordTitle: 'Set New Password',
+    resetPasswordHint: 'Enter your new password below.',
+    newPassword: 'New Password',
+    newPasswordPlaceholder: 'Enter your new password',
+    confirmPassword: 'Confirm Password',
+    confirmPasswordPlaceholder: 'Confirm your new password',
+    confirmPasswordRequired: 'Please confirm your password',
+    passwordsDoNotMatch: 'Passwords do not match',
+    resetPassword: 'Reset Password',
+    resettingPassword: 'Resetting...',
+    resetPasswordFailed: 'Failed to reset password. Please try again.',
+    passwordResetSuccess: 'Password Reset Successful',
+    passwordResetSuccessHint: 'Your password has been reset. You can now sign in with your new password.',
+    invalidResetLink: 'Invalid Reset Link',
+    invalidResetLinkHint: 'This password reset link is invalid or has expired. Please request a new one.',
+    requestNewResetLink: 'Request New Reset Link',
+    invalidOrExpiredToken: 'The password reset link is invalid or has expired. Please request a new one.'
   },
 
   // Dashboard
@@ -554,7 +587,46 @@ export default {
     passwordsNotMatch: 'New passwords do not match',
     passwordTooShort: 'Password must be at least 8 characters long',
     passwordChangeSuccess: 'Password changed successfully',
-    passwordChangeFailed: 'Failed to change password'
+    passwordChangeFailed: 'Failed to change password',
+    // TOTP 2FA
+    totp: {
+      title: 'Two-Factor Authentication (2FA)',
+      description: 'Enhance account security with Google Authenticator or similar apps',
+      enabled: 'Enabled',
+      enabledAt: 'Enabled at',
+      notEnabled: 'Not Enabled',
+      notEnabledHint: 'Enable two-factor authentication to enhance account security',
+      enable: 'Enable',
+      disable: 'Disable',
+      featureDisabled: 'Feature Unavailable',
+      featureDisabledHint: 'Two-factor authentication has not been enabled by the administrator',
+      setupTitle: 'Set Up Two-Factor Authentication',
+      setupStep1: 'Scan the QR code below with your authenticator app',
+      setupStep2: 'Enter the 6-digit code from your app',
+      manualEntry: "Can't scan? Enter the key manually:",
+      enterCode: 'Enter 6-digit code',
+      verify: 'Verify',
+      setupFailed: 'Failed to get setup information',
+      verifyFailed: 'Invalid code, please try again',
+      enableSuccess: 'Two-factor authentication enabled',
+      disableTitle: 'Disable Two-Factor Authentication',
+      disableWarning: 'After disabling, you will no longer need a verification code to log in. This may reduce your account security.',
+      enterPassword: 'Enter your current password to confirm',
+      confirmDisable: 'Confirm Disable',
+      disableSuccess: 'Two-factor authentication disabled',
+      disableFailed: 'Failed to disable, please check your password',
+      loginTitle: 'Two-Factor Authentication',
+      loginHint: 'Enter the 6-digit code from your authenticator app',
+      loginFailed: 'Verification failed, please try again',
+      // New translations for email verification
+      verifyEmailFirst: 'Please verify your email first',
+      verifyPasswordFirst: 'Please verify your identity first',
+      emailCode: 'Email Verification Code',
+      enterEmailCode: 'Enter 6-digit code',
+      sendCode: 'Send Code',
+      codeSent: 'Verification code sent to your email',
+      sendCodeFailed: 'Failed to send verification code'
+    }
   },
 
   // Empty States
@@ -2743,7 +2815,13 @@ export default {
         emailVerification: 'Email Verification',
         emailVerificationHint: 'Require email verification for new registrations',
         promoCode: 'Promo Code',
-        promoCodeHint: 'Allow users to use promo codes during registration'
+        promoCodeHint: 'Allow users to use promo codes during registration',
+        passwordReset: 'Password Reset',
+        passwordResetHint: 'Allow users to reset their password via email',
+        totp: 'Two-Factor Authentication (2FA)',
+        totpHint: 'Allow users to use authenticator apps like Google Authenticator',
+        totpKeyNotConfigured:
+          'Please configure TOTP_ENCRYPTION_KEY in environment variables first. Generate a key with: openssl rand -hex 32'
       },
       turnstile: {
         title: 'Cloudflare Turnstile',
@@ -2817,6 +2895,17 @@ export default {
         hideCcsImportButton: 'Hide CCS Import Button',
         hideCcsImportButtonHint: 'When enabled, the "Import to CCS" button will be hidden on the API Keys page'
       },
+      purchase: {
+        title: 'Purchase Page',
+        description: 'Show a "Purchase Subscription" entry in the sidebar and open the configured URL in an iframe',
+        enabled: 'Show Purchase Entry',
+        enabledHint: 'Only shown in standard mode (not simple mode)',
+        url: 'Purchase URL',
+        urlPlaceholder: 'https://example.com/purchase',
+        urlHint: 'Must be an absolute http(s) URL',
+        iframeWarning:
+          '⚠️ iframe note: Some websites block embedding via X-Frame-Options or CSP (frame-ancestors). If the page is blank, provide an "Open in new tab" alternative.'
+      },
       smtp: {
         title: 'SMTP Settings',
         description: 'Configure email sending for verification codes',
@@ -2962,6 +3051,18 @@ export default {
     retry: 'Retry'
   },
 
+  // Purchase Subscription Page
+  purchase: {
+    title: 'Purchase Subscription',
+    description: 'Purchase a subscription via the embedded page',
+    openInNewTab: 'Open in new tab',
+    notEnabledTitle: 'Feature not enabled',
+    notEnabledDesc: 'The administrator has not enabled the purchase page. Please contact admin.',
+    notConfiguredTitle: 'Purchase URL not configured',
+    notConfiguredDesc:
+      'The administrator enabled the entry but has not configured a purchase URL. Please contact admin.'
+  },
+
   // User Subscriptions Page
   userSubscriptions: {
     title: 'My Subscriptions',

frontend/src/i18n/locales/zh.ts

@@ -143,7 +143,10 @@ export default {
     balance: '余额',
     available: '可用',
     copiedToClipboard: '已复制到剪贴板',
+    copied: '已复制',
     copyFailed: '复制失败',
+    verifying: '验证中...',
+    processing: '处理中...',
     contactSupport: '联系客服',
     add: '添加',
     invalidEmail: '请输入有效的邮箱地址',
@@ -200,6 +203,7 @@ export default {
     logout: '退出登录',
     github: 'GitHub',
     mySubscriptions: '我的订阅',
+    buySubscription: '购买订阅',
     docs: '文档'
   },
 
@@ -268,7 +272,36 @@ export default {
       code: '授权码',
       state: '状态',
       fullUrl: '完整URL'
-    }
+    },
+    // 忘记密码
+    forgotPassword: '忘记密码？',
+    forgotPasswordTitle: '重置密码',
+    forgotPasswordHint: '输入您的邮箱地址，我们将向您发送密码重置链接。',
+    sendResetLink: '发送重置链接',
+    sendingResetLink: '发送中...',
+    sendResetLinkFailed: '发送重置链接失败，请重试。',
+    resetEmailSent: '重置链接已发送',
+    resetEmailSentHint: '如果该邮箱已注册，您将很快收到密码重置链接。请检查您的收件箱和垃圾邮件文件夹。',
+    backToLogin: '返回登录',
+    rememberedPassword: '想起密码了？',
+    // 重置密码
+    resetPasswordTitle: '设置新密码',
+    resetPasswordHint: '请在下方输入您的新密码。',
+    newPassword: '新密码',
+    newPasswordPlaceholder: '输入新密码',
+    confirmPassword: '确认密码',
+    confirmPasswordPlaceholder: '再次输入新密码',
+    confirmPasswordRequired: '请确认您的密码',
+    passwordsDoNotMatch: '两次输入的密码不一致',
+    resetPassword: '重置密码',
+    resettingPassword: '重置中...',
+    resetPasswordFailed: '重置密码失败，请重试。',
+    passwordResetSuccess: '密码重置成功',
+    passwordResetSuccessHint: '您的密码已重置。现在可以使用新密码登录。',
+    invalidResetLink: '无效的重置链接',
+    invalidResetLinkHint: '此密码重置链接无效或已过期。请重新请求一个新链接。',
+    requestNewResetLink: '请求新的重置链接',
+    invalidOrExpiredToken: '密码重置链接无效或已过期。请重新请求一个新链接。'
   },
 
   // Dashboard
@@ -550,7 +583,46 @@ export default {
     passwordsNotMatch: '两次输入的密码不一致',
     passwordTooShort: '密码至少需要 8 个字符',
     passwordChangeSuccess: '密码修改成功',
-    passwordChangeFailed: '密码修改失败'
+    passwordChangeFailed: '密码修改失败',
+    // TOTP 2FA
+    totp: {
+      title: '双因素认证 (2FA)',
+      description: '使用 Google Authenticator 等应用增强账户安全',
+      enabled: '已启用',
+      enabledAt: '启用时间',
+      notEnabled: '未启用',
+      notEnabledHint: '启用双因素认证可以增强账户安全性',
+      enable: '启用',
+      disable: '禁用',
+      featureDisabled: '功能未开放',
+      featureDisabledHint: '管理员尚未开放双因素认证功能',
+      setupTitle: '设置双因素认证',
+      setupStep1: '使用认证器应用扫描下方二维码',
+      setupStep2: '输入应用显示的 6 位验证码',
+      manualEntry: '无法扫码？手动输入密钥：',
+      enterCode: '输入 6 位验证码',
+      verify: '验证',
+      setupFailed: '获取设置信息失败',
+      verifyFailed: '验证码错误，请重试',
+      enableSuccess: '双因素认证已启用',
+      disableTitle: '禁用双因素认证',
+      disableWarning: '禁用后，登录时将不再需要验证码。这可能会降低您的账户安全性。',
+      enterPassword: '请输入当前密码确认',
+      confirmDisable: '确认禁用',
+      disableSuccess: '双因素认证已禁用',
+      disableFailed: '禁用失败，请检查密码是否正确',
+      loginTitle: '双因素认证',
+      loginHint: '请输入您认证器应用显示的 6 位验证码',
+      loginFailed: '验证失败，请重试',
+      // New translations for email verification
+      verifyEmailFirst: '请先验证您的邮箱',
+      verifyPasswordFirst: '请先验证您的身份',
+      emailCode: '邮箱验证码',
+      enterEmailCode: '请输入 6 位验证码',
+      sendCode: '发送验证码',
+      codeSent: '验证码已发送到您的邮箱',
+      sendCodeFailed: '发送验证码失败'
+    }
   },
 
   // Empty States
@@ -2896,7 +2968,13 @@ export default {
         emailVerification: '邮箱验证',
         emailVerificationHint: '新用户注册时需要验证邮箱',
         promoCode: '优惠码',
-        promoCodeHint: '允许用户在注册时使用优惠码'
+        promoCodeHint: '允许用户在注册时使用优惠码',
+        passwordReset: '忘记密码',
+        passwordResetHint: '允许用户通过邮箱重置密码',
+        totp: '双因素认证 (2FA)',
+        totpHint: '允许用户使用 Google Authenticator 等应用进行二次验证',
+        totpKeyNotConfigured:
+          '请先在环境变量中配置 TOTP_ENCRYPTION_KEY。使用命令 openssl rand -hex 32 生成密钥。'
       },
       turnstile: {
         title: 'Cloudflare Turnstile',
@@ -2968,6 +3046,17 @@ export default {
         hideCcsImportButton: '隐藏 CCS 导入按钮',
         hideCcsImportButtonHint: '启用后将在 API Keys 页面隐藏"导入 CCS"按钮'
       },
+      purchase: {
+        title: '购买订阅页面',
+        description: '在侧边栏展示“购买订阅”入口，并在页面内通过 iframe 打开指定链接',
+        enabled: '显示购买订阅入口',
+        enabledHint: '仅在标准模式（非简单模式）下展示',
+        url: '购买页面 URL',
+        urlPlaceholder: 'https://example.com/purchase',
+        urlHint: '必须是完整的 http(s) 链接',
+        iframeWarning:
+          '⚠️ iframe 提示：部分网站会通过 X-Frame-Options 或 CSP（frame-ancestors）禁止被 iframe 嵌入，出现空白时可引导用户使用“新窗口打开”。'
+      },
       smtp: {
         title: 'SMTP 设置',
         description: '配置用于发送验证码的邮件服务',
@@ -3112,6 +3201,17 @@ export default {
     retry: '重试'
   },
 
+  // Purchase Subscription Page
+  purchase: {
+    title: '购买订阅',
+    description: '通过内嵌页面完成订阅购买',
+    openInNewTab: '新窗口打开',
+    notEnabledTitle: '该功能未开启',
+    notEnabledDesc: '管理员暂未开启购买订阅入口，请联系管理员。',
+    notConfiguredTitle: '购买链接未配置',
+    notConfiguredDesc: '管理员已开启入口，但尚未配置购买订阅链接，请联系管理员。'
+  },
+
   // User Subscriptions Page
   userSubscriptions: {
     title: '我的订阅',

frontend/src/router/index.ts

@@ -79,6 +79,24 @@ const routes: RouteRecordRaw[] = [
       title: 'LinuxDo OAuth Callback'
     }
   },
+  {
+    path: '/forgot-password',
+    name: 'ForgotPassword',
+    component: () => import('@/views/auth/ForgotPasswordView.vue'),
+    meta: {
+      requiresAuth: false,
+      title: 'Forgot Password'
+    }
+  },
+  {
+    path: '/reset-password',
+    name: 'ResetPassword',
+    component: () => import('@/views/auth/ResetPasswordView.vue'),
+    meta: {
+      requiresAuth: false,
+      title: 'Reset Password'
+    }
+  },
 
   // ==================== User Routes ====================
   {
@@ -157,6 +175,18 @@ const routes: RouteRecordRaw[] = [
       descriptionKey: 'userSubscriptions.description'
     }
   },
+  {
+    path: '/purchase',
+    name: 'PurchaseSubscription',
+    component: () => import('@/views/user/PurchaseSubscriptionView.vue'),
+    meta: {
+      requiresAuth: true,
+      requiresAdmin: false,
+      title: 'Purchase Subscription',
+      titleKey: 'purchase.title',
+      descriptionKey: 'purchase.description'
+    }
+  },
 
   // ==================== Admin Routes ====================
   {