테넌트 crud 테스트 코드 추가

backend/internal/handler/user_handler.go

@@ -322,12 +322,12 @@ func (h *UserHandler) CreateUser(c *fiber.Ctx) error {
 	// [New] Local DB Sync - Ensure user exists in read-model
 	if h.UserRepo != nil {
 		localUser := h.mapToLocalUser(*identity)
-		
+
 		// Sync to local DB
 		go func(u *domain.User, role string, tID *string) {
 			ctx, cancel := context.WithTimeout(context.Background(), 15*time.Second)
 			defer cancel()
-			
+
 			// Use Update (upsert) instead of Create for robustness
 			if err := h.UserRepo.Update(ctx, u); err != nil {
 				slog.Error("[UserHandler] Failed to sync new user to local DB", "email", u.Email, "error", err)
@@ -475,14 +475,14 @@ func (h *UserHandler) UpdateUser(c *fiber.Ctx) error {
 	// [New] Local DB Sync - Sync synchronously to ensure immediate consistency for the caller
 	if h.UserRepo != nil {
 		updatedLocalUser := h.mapToLocalUser(*updated)
-		
+
 		ctx := context.Background() // Use request context if appropriate, but sync must finish
 		if err := h.UserRepo.Update(ctx, updatedLocalUser); err != nil {
 			slog.Error("[UserHandler] Failed to sync updated user to local DB", "userID", updatedLocalUser.ID, "error", err)
 		}
 
 		// [Keto Sync] asynchronously as it's less critical for immediate UI count
-		go h.syncKetoRole(context.Background(), updatedLocalUser.ID, 
+		go h.syncKetoRole(context.Background(), updatedLocalUser.ID,
 			extractTraitString(updated.Traits, "grade"), oldRole, oldTenantID, updatedLocalUser.TenantID)
 	}