- Workers: use http_internal module (HTTP/1.0 SimpleHTTPServer)
- ERPNext: use /api/method/ping, accept 401/403 (still means alive)
- Listmonk: use /health not /api/health (403 without auth)
- Forgejo: port 3000 not 3030
- Dev API: probe via HTTPS public URL (blackbox can't reach Docker)
- Added http_internal blackbox module accepting HTTP/1.0 + 401/403
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>