Fixes bd-44e: Remove deletions.jsonl from .gitignore.
The deletions manifest MUST be tracked in git for cross-clone deletion
propagation to work (bd-imj). Previously it was incorrectly gitignored
with a "local-only" comment that contradicted the design.
Changes:
- Remove .beads/deletions.jsonl from .gitignore
- Add comment explaining why it is tracked
- Track existing deletions.jsonl file
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
