feat(release): publish minimal self-contained Magent source

backend/app/services/arr.py

@@ -0,0 +1,21 @@
+"""Shared Sonarr/Radarr configuration helpers."""
+
+from typing import Any
+
+
+class RootFolderNotFoundError(ValueError):
+    pass
+
+
+async def resolve_root_folder_path(client: Any, root_folder: str, service_name: str) -> str:
+    configured = str(root_folder or "").strip()
+    if not configured.isdigit():
+        return configured
+    folders = await client.get_root_folders()
+    if isinstance(folders, list):
+        for folder in folders:
+            if isinstance(folder, dict) and folder.get("id") == int(configured):
+                path = str(folder.get("path") or "").strip()
+                if path:
+                    return path
+    raise RootFolderNotFoundError(f"{service_name} root folder id {configured} not found")