fix: harden concurrent quota and status updates

model/user_cache.go

@@ -67,12 +67,6 @@ func invalidateUserCache(userId int) error {
 	return common.RedisDelKey(getUserCacheKey(userId))
 }
 
-// InvalidateUserCache is the exported version of invalidateUserCache.
-// 供 controller 等上层包在用户状态变更（如禁用、删除、角色变更）后主动清理缓存。
-func InvalidateUserCache(userId int) error {
-	return invalidateUserCache(userId)
-}
-
 func populateUserCache(user User) error {
 	if !common.RedisEnabled {
 		return nil
@@ -187,14 +181,6 @@ func getUserQuotaCache(userId int) (int, error) {
 	return cache.Quota, nil
 }
 
-func getUserStatusCache(userId int) (int, error) {
-	cache, err := GetUserCache(userId)
-	if err != nil {
-		return 0, err
-	}
-	return cache.Status, nil
-}
-
 func getUserNameCache(userId int) (string, error) {
 	cache, err := GetUserCache(userId)
 	if err != nil {
@@ -211,22 +197,6 @@ func getUserSettingCache(userId int) (dto.UserSetting, error) {
 	return cache.GetSetting(), nil
 }
 
-// New functions for individual field updates
-func updateUserStatusCache(userId int, status bool) error {
-	statusInt := common.UserStatusEnabled
-	if !status {
-		statusInt = common.UserStatusDisabled
-	}
-	return updateUserCacheField(userId, "Status", statusInt)
-}
-
-func updateUserQuotaCache(userId int, quota int) error {
-	if !common.RedisEnabled {
-		return nil
-	}
-	return common.RedisHSetField(getUserCacheKey(userId), "Quota", fmt.Sprintf("%d", quota))
-}
-
 // RefreshUserGroupCache writes the database-authoritative group into an
 // existing user hash without changing the user's authentication version.
 func RefreshUserGroupCache(userId int) error {