ci: enforce code formatting checks for backend and frontend (#1536)

backend/app/channels/manager.py

@@ -66,14 +66,9 @@ def _normalize_custom_agent_name(raw_value: str) -> str:
     """Normalize legacy channel assistant IDs into valid custom agent names."""
     normalized = raw_value.strip().lower().replace("_", "-")
     if not normalized:
-        raise InvalidChannelSessionConfigError(
-            "Channel session assistant_id is empty. Use 'lead_agent' or a valid custom agent name."
-        )
+        raise InvalidChannelSessionConfigError("Channel session assistant_id is empty. Use 'lead_agent' or a valid custom agent name.")
     if not CUSTOM_AGENT_NAME_PATTERN.fullmatch(normalized):
-        raise InvalidChannelSessionConfigError(
-            f"Invalid channel session assistant_id {raw_value!r}. "
-            "Use 'lead_agent' or a custom agent name containing only letters, digits, and hyphens."
-        )
+        raise InvalidChannelSessionConfigError(f"Invalid channel session assistant_id {raw_value!r}. Use 'lead_agent' or a custom agent name containing only letters, digits, and hyphens.")
     return normalized
 
 

backend/app/gateway/routers/uploads.py

@@ -48,9 +48,7 @@ def _make_file_sandbox_writable(file_path: os.PathLike[str] | str) -> None:
         logger.warning("Skipping sandbox chmod for symlinked upload path: %s", file_path)
         return
 
-    writable_mode = (
-        stat.S_IMODE(file_stat.st_mode) | stat.S_IWUSR | stat.S_IWGRP | stat.S_IWOTH
-    )
+    writable_mode = stat.S_IMODE(file_stat.st_mode) | stat.S_IWUSR | stat.S_IWGRP | stat.S_IWOTH
     chmod_kwargs = {"follow_symlinks": False} if os.chmod in os.supports_follow_symlinks else {}
     os.chmod(file_path, writable_mode, **chmod_kwargs)