Chrome extension: auto-discover vavd, usable chat, page context

[Obooman]

The Chrome extension was a localhost paste form with a raw text log. This makes it a real thin client of vavd, aligned with VAV Remote / the phone protocol.

What changed

• Icons — VAV mark at 16/32/48/128 on the toolbar and store tile.
• Discovery — vavd serves GET /discover on the loopback web bridge. Loopback clients receive the pairing secret (same threat model as ~/.vavd/secret.json). The extension scans :4752–4762 and connects from the service worker. No URL field, no secret paste for a local daemon. Pairing URI remains as a fallback.
• Conversation UI — Side panel matches the phone client: host status, session list, agent-log blocks (thinking / tools / plan / ask cards), model + approval, streaming, stop.
• Page operations — Current tab (title, URL, selection, readable excerpt), optional screenshot, context menus, and an in-page “Ask VAV” chip. Content-script helpers for highlight / scroll / fill / click. Chrome-extension / about: tabs are not treated as the page.

Verification

• Unit tests for discover payload, page-context formatting, and the extension pack.
• Playwright: side panel auto-pairs, creates a session, configures a model, sends a turn, then attaches a live http://127.0.0.1 page (Install guide) into the next user message.
• vavd process test asserts /discover returns the loopback secret.
• Hidden sheets no longer steal clicks (display: grid was overriding [hidden]).

Side panel after a page-grounded turn

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