5 tasks: hide branching, skip move autosaves, compute diff at capture, show diff in sidebar tooltip, show diff in timeline tooltip. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Covers three changes: skip move-only autosaves, add detailed diff metadata for hover tooltips, and hide branching UI. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>