fix

cmd/backoffice/fileserver.go

@@ -153,19 +153,8 @@ func (fs *FileServer) CartHandler(w http.ResponseWriter, r *http.Request) {
 	path := filepath.Join(fs.dataDir, fmt.Sprintf("%d.events.log", id))
 	info, err := os.Stat(path)
 	if err != nil && errors.Is(err, os.ErrNotExist) {
-		// try brace-wrapped filename as fallback
-		alt := filepath.Join(fs.dataDir, fmt.Sprintf("{%d}.events.log", id))
-		if fi, err2 := os.Stat(alt); err2 == nil {
-			path = alt
-			info = fi
-		} else {
-			if errors.Is(err2, os.ErrNotExist) {
-				writeJSON(w, http.StatusNotFound, map[string]string{"error": "cart not found"})
-				return
-			}
-			writeJSON(w, http.StatusInternalServerError, map[string]string{"error": err2.Error()})
-			return
-		}
+		writeJSON(w, http.StatusNotFound, map[string]string{"error": "cart not found"})
+		return
 	} else if err != nil {
 		writeJSON(w, http.StatusInternalServerError, map[string]string{"error": err.Error()})
 		return