Merge tag 'v0.1.90' into merge/upstream-v0.1.90

注册邮箱域名白名单策略上线，后台大数据场景性能大幅优化。

- 注册邮箱域名白名单：支持管理员配置允许注册的邮箱域名策略
- Keys 页面表单筛选：用户 /keys 页面支持按条件筛选 API Key
- Settings 页面分 Tab 拆分：管理后台设置页面按功能模块分 Tab 展示

- 后台大数据场景加载性能优化：仪表盘/用户/账号/Ops 页面大数据集加载显著提速
- Usage 大表分页优化：默认避免全量 COUNT(*)，大幅降低分页查询耗时
- 消除重复的 normalizeAccountIDList，补充新增组件的单元测试
- 清理无用文件和过时文档，精简项目结构
- EmailVerifyView 硬编码英文字符串替换为 i18n 调用

- 修复 Anthropic 平台无限流重置时间的 429 误标记账号限流问题
- 修复自定义菜单页面管理员视角菜单不生效问题
- 修复 Ops 错误详情弹窗未展示真实上游 payload 的问题
- 修复充值/订阅菜单 icon 显示问题

# Conflicts:
#	.gitignore
#	backend/cmd/server/VERSION
#	backend/ent/group.go
#	backend/ent/runtime/runtime.go
#	backend/ent/schema/group.go
#	backend/go.sum
#	backend/internal/handler/admin/account_handler.go
#	backend/internal/handler/admin/dashboard_handler.go
#	backend/internal/pkg/usagestats/usage_log_types.go
#	backend/internal/repository/group_repo.go
#	backend/internal/repository/usage_log_repo.go
#	backend/internal/server/middleware/security_headers.go
#	backend/internal/server/router.go
#	backend/internal/service/account_usage_service.go
#	backend/internal/service/admin_service_bulk_update_test.go
#	backend/internal/service/dashboard_service.go
#	backend/internal/service/gateway_service.go
#	frontend/src/api/admin/dashboard.ts
#	frontend/src/components/account/BulkEditAccountModal.vue
#	frontend/src/components/charts/GroupDistributionChart.vue
#	frontend/src/components/layout/AppSidebar.vue
#	frontend/src/i18n/locales/en.ts
#	frontend/src/i18n/locales/zh.ts
#	frontend/src/views/admin/GroupsView.vue
#	frontend/src/views/admin/SettingsView.vue
#	frontend/src/views/admin/UsageView.vue
#	frontend/src/views/user/PurchaseSubscriptionView.vue

backend/internal/service/antigravity_gateway_service.go

@@ -21,7 +21,6 @@ import (
 	"time"
 
 	"github.com/Wei-Shaw/sub2api/internal/pkg/antigravity"
-	"github.com/Wei-Shaw/sub2api/internal/pkg/ctxkey"
 	"github.com/Wei-Shaw/sub2api/internal/pkg/logger"
 	"github.com/gin-gonic/gin"
 	"github.com/google/uuid"
@@ -2294,7 +2293,7 @@ func sleepAntigravityBackoffWithContext(ctx context.Context, attempt int) bool {
 
 // isSingleAccountRetry 检查 context 中是否设置了单账号退避重试标记
 func isSingleAccountRetry(ctx context.Context) bool {
-	v, _ := ctx.Value(ctxkey.SingleAccountRetry).(bool)
+	v, _ := SingleAccountRetryFromContext(ctx)
 	return v
 }