New "Web browser" section in deploy/site/docs.html (and a TOC entry)
covering the on-device text browser and tappable chat links
("Open in web" / "Create QR"), with three new device screenshots
(app_web, app_web_links, app_web_qr). Existing screenshots unchanged.
Also render the reader page inline in the DOC_CAPTURE tour: the reader
paints from the UI-update poll, which doesn't run while the tour blocks
the loop, so the tour now drives the fetch-wait + render itself before
capturing the Web app.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
