feat(01-03): integration wiring, Docker deployment, lightsync.groll.cloud

- Fix API routing: redirect_slashes=False + strip trailing slashes from route paths
- Fix StaticFiles catch-all intercepting /api/* before FastAPI redirect
- Add [tool.hatch.build.targets.wheel] to pyproject.toml for Docker builds
- Install docker-compose plugin (v2.34.0) as CLI plugin
- Create Dockerfile (python:3.11-alpine, CMD python -m lightsync)
- Create docker-compose.prod.yml (Traefik + Authelia, edge network)
- Deploy lightsync container to lightsync.groll.cloud
- Add LightSync entry to start/projects.json
- Update frontend app.js to use /api/devices (no trailing slash)

lightsync/frontend/app.js

@@ -58,7 +58,7 @@ client.connect();
 // Load device list on startup
 async function loadDevices() {
     try {
-        const res = await fetch("/api/devices/");
+        const res = await fetch("/api/devices");
         if (!res.ok) throw new Error(`HTTP ${res.status}`);
         const devices = await res.json();
         const list = document.getElementById("device-list");