Fix avatar upload path by adding a leading dot to the avatars directory

go_cloud/internal/http/routes.go

@@ -4038,7 +4038,7 @@ func uploadUserAvatarHandler(w http.ResponseWriter, r *http.Request, db *databas
 
 	// Upload to Nextcloud
 	client := storage.NewWebDAVClient(cfg)
-	avatarPath := fmt.Sprintf("avatars/%s", filename)
+	avatarPath := fmt.Sprintf(".avatars/%s", filename)
 	err = client.Upload(r.Context(), avatarPath, bytes.NewReader(fileBytes), header.Size)
 	if err != nil {
 		errors.LogError(r, err, "Failed to upload avatar")