Security:
- Fix path traversal via backslash bypass in sync validate_sync_path()
- Replace silent HTTP client fallback with proper error propagation
- Add 64KB YAML frontmatter size limit to prevent DoS via crafted files
Data integrity:
- Reorder delete operations: update metadata before removing files to
prevent orphaned metadata entries on crash
- Fix task deduplication to use file mtime as tiebreaker when versions
are equal, preventing non-deterministic data loss
- Add rollback on conflict recovery failure (remove orphaned duplicate
files when metadata update fails)
- Clean up temp files on atomic write rename failure
- Add file-based sync lock to prevent concurrent sync operations
- Use saturating_add for task version to prevent overflow
Error handling:
- Surface move_task rollback failures as structured errors instead of
silent warnings
- Log WebDAV parallel request failures instead of silently swallowing
- Emit watcher-error events to frontend instead of only printing to stderr
Frontend:
- Fix focus listener leak in auto-sync (clean up if stopAutoSync called
while promise pending)
- Add prefers-reduced-motion CSS media query for accessibility
- Add ARIA labels, roles, and keyboard handlers to TaskItem, BottomSheet,
and ConfirmDialog components
- Replace BottomSheet children: any with Snippet type
https://claude.ai/code/session_01AJoK28N4vqLqzskq6ybGri