feat: 添加日志管理和敏感词过滤功能

- 新增日志管理模块：操作日志、登录日志、数据变更日志
- 新增敏感词过滤器 (sanitizer)
- 新增日志异步写入管理器
- 新增日志定时清理服务
- 优化帖子相关服务和上传服务

internal/service/admin_post_service.go

@@ -27,22 +27,32 @@ type AdminPostService interface {
 	SetPostPin(ctx context.Context, postID string, isPinned bool) (*dto.AdminPostDetailResponse, error)
 	// SetPostFeature 加精/取消加精帖子
 	SetPostFeature(ctx context.Context, postID string, isFeatured bool) (*dto.AdminPostDetailResponse, error)
+
+	// 日志服务设置
+	SetLogService(logService *LogService)
 }
 
 // adminPostServiceImpl 管理端帖子服务实现
 type adminPostServiceImpl struct {
-	postRepo *repository.PostRepository
-	cache    cache.Cache
+	postRepo   *repository.PostRepository
+	cache      cache.Cache
+	logService *LogService
 }
 
 // NewAdminPostService 创建管理端帖子服务
 func NewAdminPostService(postRepo *repository.PostRepository, cacheBackend cache.Cache) AdminPostService {
 	return &adminPostServiceImpl{
-		postRepo: postRepo,
-		cache:    cacheBackend,
+		postRepo:   postRepo,
+		cache:      cacheBackend,
+		logService: nil,
 	}
 }
 
+// SetLogService 设置日志服务
+func (s *adminPostServiceImpl) SetLogService(logService *LogService) {
+	s.logService = logService
+}
+
 // GetPostList 获取帖子列表
 func (s *adminPostServiceImpl) GetPostList(ctx context.Context, page, pageSize int, keyword, status, authorID, startDate, endDate string) ([]dto.AdminPostListResponse, int64, error) {
 	query := repository.AdminPostListQuery{
@@ -80,7 +90,12 @@ func (s *adminPostServiceImpl) GetPostDetail(ctx context.Context, postID string)
 
 // DeletePost 删除帖子
 func (s *adminPostServiceImpl) DeletePost(ctx context.Context, postID string) error {
-	err := s.postRepo.Delete(postID)
+	post, err := s.postRepo.GetByID(postID)
+	if err != nil {
+		return err
+	}
+
+	err = s.postRepo.Delete(postID)
 	if err != nil {
 		return err
 	}
@@ -89,6 +104,18 @@ func (s *adminPostServiceImpl) DeletePost(ctx context.Context, postID string) er
 	cache.InvalidatePostDetail(s.cache, postID)
 	cache.InvalidatePostList(s.cache)
 
+	// 记录操作日志
+	if s.logService != nil {
+		s.logService.OperationLog.RecordOperation(&model.OperationLog{
+			UserID:     post.UserID,
+			Operation:  string(model.OpAdminDeletePost),
+			Module:     "admin",
+			TargetType: "post",
+			TargetID:   postID,
+			Status:     "success",
+		})
+	}
+
 	return nil
 }