feat(teams): fix checkbox multi-select and improve batch operations UI

- Fix checkbox binding using :model-value instead of :checked
- Change selectedIds from Set to reactive array for proper Vue reactivity
- Move batch refresh/delete buttons to top bar (matching CardKeysPage layout)
- Buttons show selection count like 'Refresh (2)' when items selected
- Swap position of 'Add Team' and 'Random Invite' buttons
- Remove unused isIndeterminate computed property

backend/internal/handler/chatgpt_account_handler.go

@@ -15,13 +15,15 @@ import (
 // ChatGPTAccountHandler ChatGPT 账号处理器
 type ChatGPTAccountHandler struct {
 	repo           *repository.ChatGPTAccountRepository
+	invitationRepo *repository.InvitationRepository
 	chatgptService *service.ChatGPTService
 }
 
 // NewChatGPTAccountHandler 创建处理器
-func NewChatGPTAccountHandler(repo *repository.ChatGPTAccountRepository, chatgptService *service.ChatGPTService) *ChatGPTAccountHandler {
+func NewChatGPTAccountHandler(repo *repository.ChatGPTAccountRepository, invitationRepo *repository.InvitationRepository, chatgptService *service.ChatGPTService) *ChatGPTAccountHandler {
 	return &ChatGPTAccountHandler{
 		repo:           repo,
+		invitationRepo: invitationRepo,
 		chatgptService: chatgptService,
 	}
 }
@@ -307,10 +309,19 @@ func (h *ChatGPTAccountHandler) Delete(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
+	// 先删除相关的邀请记录，避免外键约束失败
+	if err := h.invitationRepo.DeleteByAccountID(id); err != nil {
+		respondJSON(w, http.StatusInternalServerError, AccountResponse{
+			Success: false,
+			Message: "Failed to delete related invitations: " + err.Error(),
+		})
+		return
+	}
+
 	if err := h.repo.Delete(id); err != nil {
 		respondJSON(w, http.StatusInternalServerError, AccountResponse{
 			Success: false,
-			Message: "Failed to delete account",
+			Message: "Failed to delete account: " + err.Error(),
 		})
 		return
 	}
@@ -320,3 +331,150 @@ func (h *ChatGPTAccountHandler) Delete(w http.ResponseWriter, r *http.Request) {
 		Message: "Account deleted successfully",
 	})
 }
+
+// BatchDeleteRequest 批量删除请求
+type BatchDeleteAccountRequest struct {
+	IDs []int `json:"ids"`
+}
+
+// BatchDeleteResponse 批量操作响应
+type BatchOperationResponse struct {
+	Success      bool   `json:"success"`
+	Message      string `json:"message"`
+	SuccessCount int    `json:"success_count"`
+	FailedCount  int    `json:"failed_count"`
+}
+
+// BatchDelete 批量删除账号
+func (h *ChatGPTAccountHandler) BatchDelete(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodDelete {
+		respondJSON(w, http.StatusMethodNotAllowed, BatchOperationResponse{
+			Success: false,
+			Message: "Method not allowed",
+		})
+		return
+	}
+
+	var req BatchDeleteAccountRequest
+	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
+		respondJSON(w, http.StatusBadRequest, BatchOperationResponse{
+			Success: false,
+			Message: "Invalid request body",
+		})
+		return
+	}
+
+	if len(req.IDs) == 0 {
+		respondJSON(w, http.StatusBadRequest, BatchOperationResponse{
+			Success: false,
+			Message: "No accounts selected",
+		})
+		return
+	}
+
+	successCount := 0
+	failedCount := 0
+
+	for _, id := range req.IDs {
+		// 先删除相关的邀请记录
+		if err := h.invitationRepo.DeleteByAccountID(id); err != nil {
+			failedCount++
+			continue
+		}
+		// 再删除账号
+		if err := h.repo.Delete(id); err != nil {
+			failedCount++
+			continue
+		}
+		successCount++
+	}
+
+	respondJSON(w, http.StatusOK, BatchOperationResponse{
+		Success:      failedCount == 0,
+		Message:      "Batch delete completed",
+		SuccessCount: successCount,
+		FailedCount:  failedCount,
+	})
+}
+
+// BatchRefreshRequest 批量刷新请求
+type BatchRefreshRequest struct {
+	IDs []int `json:"ids"`
+}
+
+// BatchRefresh 批量刷新账号
+func (h *ChatGPTAccountHandler) BatchRefresh(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodPost {
+		respondJSON(w, http.StatusMethodNotAllowed, BatchOperationResponse{
+			Success: false,
+			Message: "Method not allowed",
+		})
+		return
+	}
+
+	var req BatchRefreshRequest
+	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
+		respondJSON(w, http.StatusBadRequest, BatchOperationResponse{
+			Success: false,
+			Message: "Invalid request body",
+		})
+		return
+	}
+
+	if len(req.IDs) == 0 {
+		respondJSON(w, http.StatusBadRequest, BatchOperationResponse{
+			Success: false,
+			Message: "No accounts selected",
+		})
+		return
+	}
+
+	successCount := 0
+	failedCount := 0
+
+	for _, id := range req.IDs {
+		account, err := h.repo.FindByID(id)
+		if err != nil || account == nil {
+			failedCount++
+			continue
+		}
+
+		// 调用 ChatGPT API 获取订阅信息
+		subInfo, err := h.chatgptService.GetSubscription(account.TeamAccountID, account.AuthToken)
+		if err != nil {
+			account.ConsecutiveFailures++
+			account.IsActive = false
+			account.LastCheck = sql.NullTime{Time: time.Now(), Valid: true}
+			h.repo.Update(account)
+			failedCount++
+			continue
+		}
+
+		// 更新账号信息
+		if subInfo.IsValid {
+			account.SeatsInUse = subInfo.SeatsInUse
+			account.SeatsEntitled = subInfo.SeatsEntitled
+			account.ActiveStart = sql.NullTime{Time: subInfo.ActiveStart, Valid: !subInfo.ActiveStart.IsZero()}
+			account.ActiveUntil = sql.NullTime{Time: subInfo.ActiveUntil, Valid: !subInfo.ActiveUntil.IsZero()}
+			account.IsActive = true
+			account.ConsecutiveFailures = 0
+		} else {
+			account.IsActive = false
+			account.ConsecutiveFailures++
+		}
+		account.LastCheck = sql.NullTime{Time: time.Now(), Valid: true}
+
+		if err := h.repo.Update(account); err != nil {
+			failedCount++
+			continue
+		}
+		successCount++
+	}
+
+	respondJSON(w, http.StatusOK, BatchOperationResponse{
+		Success:      failedCount == 0,
+		Message:      "Batch refresh completed",
+		SuccessCount: successCount,
+		FailedCount:  failedCount,
+	})
+}