feat(admin): 支持定时测试自动恢复并统一账号恢复入口

- 为定时测试计划增加 auto_recover 配置，补齐前后端类型、接口、仓储与数据库迁移
- 在定时测试成功后自动恢复账号 error、rate-limit 等可恢复运行时状态
- 新增 /admin/accounts/:id/recover-state 接口，合并原有重置状态与清限流操作
- 更新账号管理菜单与定时测试面板，补充自动恢复开关、说明提示和状态展示
- 补充账号恢复、限流清理与仓储同步相关测试

backend/internal/handler/admin/account_handler.go

@@ -660,6 +660,42 @@ func (h *AccountHandler) Test(c *gin.Context) {
 		// Error already sent via SSE, just log
 		return
 	}
+
+	if h.rateLimitService != nil {
+		if _, err := h.rateLimitService.RecoverAccountAfterSuccessfulTest(c.Request.Context(), accountID); err != nil {
+			_ = c.Error(err)
+		}
+	}
+}
+
+// RecoverState handles unified recovery of recoverable account runtime state.
+// POST /api/v1/admin/accounts/:id/recover-state
+func (h *AccountHandler) RecoverState(c *gin.Context) {
+	accountID, err := strconv.ParseInt(c.Param("id"), 10, 64)
+	if err != nil {
+		response.BadRequest(c, "Invalid account ID")
+		return
+	}
+
+	if h.rateLimitService == nil {
+		response.Error(c, http.StatusServiceUnavailable, "Rate limit service unavailable")
+		return
+	}
+
+	if _, err := h.rateLimitService.RecoverAccountState(c.Request.Context(), accountID, service.AccountRecoveryOptions{
+		InvalidateToken: true,
+	}); err != nil {
+		response.ErrorFrom(c, err)
+		return
+	}
+
+	account, err := h.adminService.GetAccount(c.Request.Context(), accountID)
+	if err != nil {
+		response.ErrorFrom(c, err)
+		return
+	}
+
+	response.Success(c, h.buildAccountResponseWithRuntime(c.Request.Context(), account))
 }
 
 // SyncFromCRS handles syncing accounts from claude-relay-service (CRS)

backend/internal/handler/admin/scheduled_test_handler.go

@@ -25,6 +25,7 @@ type createScheduledTestPlanRequest struct {
 	CronExpression string `json:"cron_expression" binding:"required"`
 	Enabled        *bool  `json:"enabled"`
 	MaxResults     int    `json:"max_results"`
+	AutoRecover    *bool  `json:"auto_recover"`
 }
 
 type updateScheduledTestPlanRequest struct {
@@ -32,6 +33,7 @@ type updateScheduledTestPlanRequest struct {
 	CronExpression string `json:"cron_expression"`
 	Enabled        *bool  `json:"enabled"`
 	MaxResults     int    `json:"max_results"`
+	AutoRecover    *bool  `json:"auto_recover"`
 }
 
 // ListByAccount GET /admin/accounts/:id/scheduled-test-plans
@@ -68,6 +70,9 @@ func (h *ScheduledTestHandler) Create(c *gin.Context) {
 	if req.Enabled != nil {
 		plan.Enabled = *req.Enabled
 	}
+	if req.AutoRecover != nil {
+		plan.AutoRecover = *req.AutoRecover
+	}
 
 	created, err := h.scheduledTestSvc.CreatePlan(c.Request.Context(), plan)
 	if err != nil {
@@ -109,6 +114,9 @@ func (h *ScheduledTestHandler) Update(c *gin.Context) {
 	if req.MaxResults > 0 {
 		existing.MaxResults = req.MaxResults
 	}
+	if req.AutoRecover != nil {
+		existing.AutoRecover = *req.AutoRecover
+	}
 
 	updated, err := h.scheduledTestSvc.UpdatePlan(c.Request.Context(), existing)
 	if err != nil {