Merges task KGRrdWohwZ6YcWjOZ0KqF (ReviewTab rawDiff → metadata file list,
phaseId/commitMode wiring) into the viewport virtualization phase branch.
Key resolution decisions:
- Keep viewport virtualization IntersectionObserver logic from HEAD
- Use activeFiles (not undefined `files`) in ReviewTab DiffViewer render — bug fix from incoming
- Keep FileDiff/FileDiffDetail split from HEAD (not deprecated FileChangeType)
- Keep FileDiff['status'] in parse-diff (status lives on base type)
- Drop spurious `comments` prop the incoming branch added to DiffViewer (unused)
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
72f8b07b10