feat: routes

app/api/rest/system.py

@@ -0,0 +1,15 @@
+"""Subsonic system endpoints: ping and license."""
+
+from typing import Any
+
+from fastapi import APIRouter
+
+router = APIRouter()
+
+
+@router.get("/ping")
+async def ping() -> Any: ...
+
+
+@router.get("/getLicense")
+async def get_license() -> Any: ...