refactor(docker): standardize docker network name to 'frontend'

- Replace 'traefik-network' with 'frontend' in docker-compose.traefik.yml
- Replace 'traefik-network' with 'frontend' in switch-to-traefik.sh
- Replace 'your-main-network' with 'frontend' in DOCKER_DEPLOYMENT.md examples
- Ensure consistency across Docker configuration and documentation

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

docker/scripts/switch-to-traefik.sh

@@ -7,7 +7,7 @@ docker compose -f /home/zly/project/bttoxin-pipeline/docker/compose/docker-compo
 echo "Starting with Traefik..."
 docker run -d \
   --name bttoxin-pipeline \
-  --network traefik-network \
+  --network frontend \
   -v /home/zly/project/bttoxin-pipeline/jobs:/app/jobs \
   -e JOBS_DIR=/app/jobs \
   --label traefik.enable=true \