Fix timescale_db: remove empty ports key causing Coolify deploy failure

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

docker-compose.yaml

@@ -2,8 +2,6 @@ services:
   timescale_db:
     image: timescale/timescaledb-ha:pg16-ts2.15-oss
     restart: always
-    # No ports needed if only internal, but keep for CLI access if desired
-    ports:
     environment:
       - POSTGRES_DB=${POSTGRES_DB}
       - POSTGRES_USER=${POSTGRES_USER}