feat: 重构内容列表接口，使用过滤器结构体简化参数传递；更新相关服务和测试用例

backend/app/services/common.go

@@ -30,7 +30,7 @@ func (s *common) Upload(ctx context.Context, file *multipart.FileHeader, typeArg
 	objectKey := uuid.NewString() + "_" + file.Filename
 	url := "http://mock-storage/" + objectKey
 
-	// Determine TenantID. 
+	// Determine TenantID.
 	// Uploads usually happen in context of a tenant? Or personal?
 	// For now assume user's owned tenant if any, or 0.
 	// MediaAsset has TenantID (NOT NULL).
@@ -41,7 +41,7 @@ func (s *common) Upload(ctx context.Context, file *multipart.FileHeader, typeArg
 		tid = t.ID
 	}
 	// If no tenant, and TenantID is NOT NULL, we have a problem for regular users uploading avatar?
-	// Users avatar is URL string in `users` table. 
+	// Users avatar is URL string in `users` table.
 	// MediaAssets table is for TENANT content.
 	// If this is for user avatar upload, maybe we don't use MediaAssets?
 	// But `upload` endpoint is generic.
@@ -56,7 +56,7 @@ func (s *common) Upload(ctx context.Context, file *multipart.FileHeader, typeArg
 		Provider:  "mock",
 		Bucket:    "default",
 		ObjectKey: objectKey,
-		Meta:      types.NewJSONType(fields.MediaAssetMeta{
+		Meta: types.NewJSONType(fields.MediaAssetMeta{
 			Size: file.Size,
 			// MimeType?
 		}),
@@ -73,4 +73,4 @@ func (s *common) Upload(ctx context.Context, file *multipart.FileHeader, typeArg
 		Size:     file.Size,
 		MimeType: file.Header.Get("Content-Type"),
 	}, nil
-}
+}