fix(server): specify request: Request type annotation for FastAPI sync endpoint

src/Server.py

@@ -936,16 +936,16 @@ async def import_signed_license(req: Request):
 
 @app.post("/api/license/renew")
 @app.post("/api/license/sync")
-async def trigger_license_renewal(req: Optional[Request] = None):
+async def trigger_license_renewal(request: Request):
     """
     Explicitly triggers automated mTLS sync and renewal with logar.eibl.tech.
     Supports picking up seat quota increases and certificate extensions in-flight.
     """
     requested_seats = None
     seat_increment = 0
-    if req:
     try:
-            body = await req.json()
+        body = await request.json()
+        if isinstance(body, dict):
             requested_seats = body.get("requested_seats")
             seat_increment = int(body.get("seat_increment", 0))
     except Exception: