Refactor geo enrichment into jail_service and mark Task 14 done

backend/app/routers/geo.py

@@ -58,14 +58,11 @@ async def lookup_ip(
         HTTPException: 400 when *ip* is not a valid IP address.
         HTTPException: 502 when fail2ban is unreachable.
     """
-    async def _enricher(addr: str) -> geo_service.GeoInfo | None:
-        return await geo_service.lookup(addr, http_session)
-
     try:
         result: IpLookupResult = await jail_service.lookup_ip(
             socket_path,
             ip,
-            geo_enricher=_enricher,
+            http_session=http_session,
         )
     except ValueError as exc:
         raise HTTPException(