Two fixes to make pre-commit hook more resilient:
1. Check if beads is actually initialized (has db, config, or jsonl)
- Empty .beads directory no longer triggers sync attempt
- Handles case where .beads was removed from git but dir lingers
2. Make sync failure a warning instead of blocking error
- Beads issues shouldn't prevent code commits
- User can still run 'bd sync --flush-only' manually
Also synced examples/git-hooks/pre-commit with template (worktree handling).
Closes#483🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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