refactor: 文件行数超标拆解（7个文件→14个文件，全部≤200行）

- 移动本地接口定义到 interfaces.go 和 admin/interfaces.go
- favorite_controller.go → favorite_item_controller.go
- space_controller.go → space_loaders.go
- settings_controller.go → settings_api_audit.go
- admin_energy_controller.go → admin_energy_api_controller.go
- admin_post_controller.go → admin_post_action_controller.go
- comment_repo.go → comment_mention_repo.go
- post_repo.go → post_stats_repo.go

internal/controller/settings_controller.go

@@ -1,7 +1,6 @@
 package controller
 
 import (
-	"io"
 	"net/http"
 	"time"
 
@@ -12,40 +11,6 @@ import (
 	"github.com/gin-gonic/gin"
 )
 
-// profileProvider SettingsController 对 Service 层的最小依赖（ISP：4 个方法）
-type profileProvider interface {
-	GetProfile(userID uint) (*model.User, error)
-	UpdateProfile(userID uint, username, bio string) error
-	ChangePassword(userID uint, currentPassword, newPassword string) error
-	DeleteAccount(userID uint, password, reason string) error
-}
-
-// avatarProvider 头像上传对 Service 层的最小依赖（ISP：2 个方法）
-type avatarProvider interface {
-	ProcessAvatar(userID uint, file io.Reader, contentType string, cropX, cropY, cropSize int) (string, error)
-	ProcessImage(userID uint, file io.Reader, contentType string, cropX, cropY, cropSize int) (string, error)
-}
-
-// auditSubmittable 个人设置对审核服务的依赖（ISP：4 个方法）
-type auditSubmittable interface {
-	ShouldAudit(userID uint) (bool, error)
-	SubmitProfileChanges(userID uint, currentUser *model.User, newUsername, newBio string) error
-	Submit(userID uint, auditType, newValue string) error
-	GetPendingTypes(userID uint) ([]string, error)
-}
-
-// sessionConfig 登录管理对配置的最小依赖（ISP：2 个方法）
-type sessionConfig interface {
-	GetIdleTimeout() int     // 分钟
-	GetRememberTimeout() int // 分钟
-}
-
-// taskCompleter 设置页对等级服务的依赖（用于首次任务奖励 + 检查任务）
-type taskCompleter interface {
-	CompleteTask(userID uint, taskType string) (newExp int, levelUp bool, err error)
-	HasCompletedTask(userID uint, taskType string) (bool, error)
-}
-
 // SettingsController 个人设置控制器
 type SettingsController struct {
 	authService      profileProvider
@@ -142,22 +107,3 @@ func (sc *SettingsController) SettingsPage(c *gin.Context) {
 
 	c.HTML(http.StatusOK, "settings/index.html", common.BuildPageData(c, data))
 }
-
-// AuditStatus 查询当前用户的待审核类型（需登录）
-func (sc *SettingsController) AuditStatus(c *gin.Context) {
-	uid, exists := c.Get("uid")
-	if !exists {
-		common.Error(c, http.StatusUnauthorized, "请先登录")
-		return
-	}
-
-	types, err := sc.auditService.GetPendingTypes(uid.(uint))
-	if err != nil {
-		common.Ok(c, gin.H{"pending_types": []string{}})
-		return
-	}
-	if types == nil {
-		types = []string{}
-	}
-	common.Ok(c, gin.H{"pending_types": types})
-}