feat: routes

app/api/v1/sync.py

@@ -0,0 +1,15 @@
+"""Client sync endpoints (offline-first event log)."""
+
+from typing import Any
+
+from fastapi import APIRouter
+
+router = APIRouter(prefix="/sync", tags=["sync"])
+
+
+@router.get("/changes")
+async def get_changes() -> Any: ...
+
+
+@router.post("/push")
+async def push_changes() -> Any: ...