migrate background tasks to celery

crawler/ui_exporter.py

@@ -1,9 +1,12 @@
 import json
+import logging
 import pathlib
 
 from rec.query import QueryParameters
 from repositories.listing_repository import ListingRepository
 
+logger = logging.getLogger("uvicorn.error")
+
 
 async def export_immoweb(
     repository: ListingRepository,
@@ -15,6 +18,7 @@ async def export_immoweb(
         query_parameters=query_parameters,
         limit=limit,
     )
+    logger.info(f"Fetched {len(listings)} listings")
 
     # Convert listings to immoweb format
     immoweb_listings = []