canary-previewlisted

Bring up the Canary SPA in an isolated preview-pane instance — never the shared LAN host. 1. `preview_start` the `canary-app` launch config (`.claude/launch.json`): an isolated instance on `127.0.0.1:8766` with its own `/tmp` state dir. 2. Mint a pairing URL: `ibkr app pair --addr 127.0.0.1:8766 --public-url http://127.0.0.1:8766 --json` 3. `preview_eval` navigation to the returned `.url` (e.g. `window.location.href = "<url>"`). Success = redirect to `/` with title `Canary · IBKR`. Guardrails: - Never adopt, kill, or bind the shared `0.0.0.0:8765` host — that's a separate long-running process paired to a phone over LAN; touching it breaks pairing. - A blank preview with zero console errors almost always means no server is running yet (the Launch panel falls back to a static `file://` load of `web/app/index.html`, whose absolute-path `/app.js` and `/styles.css` can't resolve). Start `canary-app` and re-pair instead of debugging the SPA. - After editing `web/app` source, `make install` and restart the preview server before re-pairing — the preview instance serves the installed binary, not loose source files.