优化首页公告与轮播图

backend/internal/modules/file/service.go

@@ -48,9 +48,13 @@ func (s *Service) Upload(req uploadRequest) (*UploadDTO, error) {
 	if err != nil {
 		return nil, err
 	}
+	url := "/api/files/object?key=" + key
+	if scene == "home-banner" {
+		url = "/api/public/files/object?key=" + key
+	}
 	return &UploadDTO{
 		ObjectKey:   key,
-		URL:         "/api/files/object?key=" + key,
+		URL:         url,
 		Filename:    req.Header.Filename,
 		ContentType: contentType,
 		Size:        req.Header.Size,
@@ -60,7 +64,7 @@ func (s *Service) Upload(req uploadRequest) (*UploadDTO, error) {
 func normalizeScene(scene string) string {
 	scene = strings.TrimSpace(strings.ToLower(scene))
 	switch scene {
-	case "listing", "handoff", "dispute", "realname", "avatar":
+	case "listing", "handoff", "dispute", "realname", "avatar", "home-banner":
 		return scene
 	default:
 		return "misc"