fix(frontend,backend): all stories panel groups by peer again, missing trashed file answers 404, access log hides the token

backend/src/utils/storage.py

@@ -53,5 +53,8 @@ class ContentAddressedStorage:
     def purge(self, key: str) -> None:
         self._trash_path(key).unlink(missing_ok=True)
 
+    def trashed(self, key: str) -> bool:
+        return self._trash_path(key).is_file()
+
     def trash_url(self, key: str) -> str:
         return str(self._trash_path(key))