canary-previewlisted

# Canary preview Open the isolated Canary SPA at `http://127.0.0.1:8766/`. Never adopt, kill, restart, or bind the shared LAN host on `0.0.0.0:8765`; it belongs to the phone-paired app. 1. Reuse an already-open tab or preview process for that exact URL. Do not launch a duplicate. 2. Otherwise start this direct command in a long-running terminal session and keep it alive: ```sh canary app --addr 127.0.0.1:8766 --public-url http://127.0.0.1:8766 --state-dir /tmp/ibkr-codex-preview-app-state-8766 --preview-read-grant ``` 3. Open `http://127.0.0.1:8766/` in a Codex browser panel. Prefer the Codex app open-panel tool; do not load browser automation merely to show the page. 4. Stop when the panel is open. No pairing, navigation beyond `/`, page reads, screenshots, or console inspection. Report success in one line. The `--preview-read-grant` flag exposes only read routes to an unpaired loopback browser. Never submit broker writes from a browser. The preview serves the installed binary, not loose source. After editing `web/app`, run `make install`, stop only this skill's long-running preview session, and launch it again. A blank page with no console errors usually means the isolated server is no longer running; restart this preview session before debugging the SPA.