The original implementation used fs.flock() which is not available in the
Node.js fs/promises API. Replaced with a portable file-based mutex using
exclusive file creation (flag: 'wx') with retry logic.
This ensures the race condition fix for agent reservations works correctly
across all Node.js versions and platforms.
- feat(kanban): Add progressive disclosure to task details drawer
- feat(kanban): Fix title layout on mobile (remove flex-row constraint)
- feat(kanban): Add bead count and metadata to epics
- style(globals): Add status color tokens and refined scrollbars
- deps: Add dagre for true DAG layout in graph view
- chore: Update capture scripts
