Fix playwright stealing PORT=3002 - pin it to PORT=3000 in supervisord

Fix port conflict: explicitly set WORKER_PORT=3005 so worker doesn't steal port 3002

Fix env var passing: export in start.sh, inherited by supervisord children

Wait for Redis before starting harness, set HOST=0.0.0.0

Fix HOST=0.0.0.0 explicitly in supervisord for firecrawl process

Run API directly via index.js instead of harness cluster mode

Fix playwright start command

Firecrawl self-hosted for HF Spaces