MRPS v5 validation
==================

Static validation
- Extracted inline JavaScript: Node.js syntax check passed.
- Page initialization in Chromium: no page or console errors.

Mocked WebXR integration tests
- Mono phone + CPU luminance-alpha depth + raw camera:
  PASS; snapshot enabled; getUserMedia calls before/while depth = 0.
- Mono phone + CPU depth + no raw camera grant:
  PASS; depth remains active; sequential fallback selected; startup
  getUserMedia calls = 0.
- Mono phone + null getDepthInformation:
  PASS; status exposes depthActive/usage/format and getUserMedia tracks = 0.
- Stereo headset + left/right depth:
  PASS; getUserMedia opens only after the first complete depth set.
- Same-frame raw-camera export:
  PASS; PNG and JSON downloads generated; reported skew = 0 ms.
- Sequential phone fallback export:
  PASS; XR ended before getUserMedia; PNG and JSON downloads generated;
  measured nonzero time gap recorded.

The tests use mocked XR objects and cannot prove a particular phone's ARCore,
camera permission, or browser implementation behavior. The implementation must
still be exercised on the target physical phone over HTTPS.