* feat: add gateway reverse proxy for extra services
Add a lightweight Node.js gateway on port 3000 that routes requests
by URL prefix (/ws/*, /ws_mp/*, /ws_debug/*) to the correct backend
service, stripping the prefix before forwarding. This allows all
extra services to be accessed through a single port.
Also makes the multiplayer server more tolerant by generically
stripping /ws_mp/ prefix on HTTP requests.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
* chore: enable gateway by default for extra services
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
* chore: add REMOTE_EXTRA env var for unified extra services proxy
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
* chore: make gateway port configurable via PORT env var
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
* chore: simplify Caddyfile extra services routing
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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