Redesign deployment as a single docker-compose with Backspace, Caddy
(auto-HTTPS), and LiveKit (voice/video) using hybrid networking:
Backspace+Caddy on isolated bridge, LiveKit on host mode for WebRTC.
- Add install.sh: interactive installer that handles Docker setup,
domain/DNS verification, secret generation, LiveKit config, and
deployment with health-check wait
- Add Caddyfile: static reverse proxy config using Caddy env vars,
routes /livekit/* to host-mode LiveKit via host.docker.internal
- Rewrite docker-compose.yml: all-in-one with profiles (voice),
no external volumes/networks, bind mount ./data for visibility
- Fix livekit.ts: use LIVEKIT_URL env var directly instead of
Host-header derivation that made the env var dead code
- Fix Dockerfile: health check reads $PORT dynamically
- Update .env.example: add DOMAIN, COMPOSE_PROFILES documentation
- Update .gitignore: add livekit.yaml (contains secrets)
- docker-compose: use external volume/network with backspace naming
- deploy.sh: add --remote/-r flag for off-network deploys, update remote path
- Dockerfile: update DB_PATH to backspace.db