Remove axios from the realtime server dependencies to avoid header injection risk,
switch Docker builds to npm ci, and bump the realtime image version to 1.0.15.
Proxies (Cloudflare, nginx) drop idle WebSocket connections before the
application notices, leaving clients typing into dead sockets.
- Add server-side ping/pong heartbeat (30s) in terminal-server.js;
terminate unresponsive clients instead of letting connections go stale
- Move client keepAlive interval start to the connect event so it
restarts correctly after reconnects
- Remove hidden-tab keepalive short-circuit — server pings now own
liveness; suppressing client pings while hidden masked proxy drops
- Fix clearAllTimers to use clearTimeout for one-shot timers
- On visibility resume, probe with a 5s timeout instead of the default
35s so half-open sockets are detected quickly
- Bump coolify-realtime to 1.0.14 across all compose files
Update helper to 1.0.13 and realtime to 1.0.12 in constants,
version manifests, and production/windows docker compose files,
including nightly variants.
