Remote access support: PLAYWRITER_HOST now accepts full URLs (e.g., https://x-tunnel.traforo.dev) in addition to plain hostnames, enabling secure remote browser access through tunnels like traforo
WebSocket over HTTPS: Automatically uses wss:// protocol when connecting to HTTPS relay hosts
Remote access documentation: Added comprehensive guide covering architecture, setup, use cases, and security model for remote Playwriter access
Internal
Centralized host parsing: New parseRelayHost() utility handles URL/hostname detection and returns correct HTTP/WebSocket base URLs
