Implements a new command to resolve git merge conflict markers in JSONL files.
Features:
- Mechanical mode (default): deterministic merge using updated_at timestamps
- Closed status wins over open
- Higher priority (lower number) wins
- Notes are concatenated when different
- Dependencies are unioned
- Dry-run mode to preview changes
- JSON output for agent integration
- Automatic backup creation before changes
The command defaults to resolving .beads/beads.jsonl but accepts any file path.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
