Update documentation to reflect audit fixes
- CLAUDE.md: Document sync lock, temp cleanup on failure, metadata-first
deletes, YAML 64KB limit, mtime dedup tiebreaker, saturating version,
watcher-error event, and accessibility features
- docs/API.md: Add YAML frontmatter row to size limits table, document
sync lock and delete ordering in sync strategy, update path traversal
and atomic write descriptions
- PLAN.md: Update version field comment to note saturating behavior
https://claude.ai/code/session_01AJoK28N4vqLqzskq6ybGri
7e9d35d6d6