The main chunk had crept to 356.9 kB gzip against a 349.9 kB budget (a
hard gate on pull requests, only a warning on pushes, so it went unnoticed
until PR #241). jsQR (camera scanning) and qrcode (drawing the QR) were
statically imported by the device-verification components, so every
startup loaded them. Both are now dynamic imports: jsQR when the scanner
opens (fetched in parallel with the camera permission), qrcode when a QR is
drawn.
Main chunk 356.9 → 302.5 kB gzip (largest chunk is now matrix-sdk at
304.7 kB, within budget); chromium e2e 19 passed.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PPmy3tPq869XDW4njjVaKA
B2 of the Matrix protocol-gaps roadmap, gate-green (688 tests):
- Enable QR verification methods (show/scan/reciprocate) in initMatrix.
- Extend DeviceVerification: the Ready step offers your own QR (byte-mode encode
via qrcode), a camera 'Scan their QR code' flow, and an emoji fallback; the
Started step routes reciprocate → a confirm step (useVerifierShowReciprocateQr)
or SAS as before.
- New QrScanner component: getUserMedia + jsQR, handing the raw binaryData bytes
to request.scanQRCode (BarcodeDetector is string-only, so can't be used).
- Adds qrcode + jsqr (small, pure-JS, client-only); build-verified under rolldown.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>