Two issues fixed:
1. `bd init` was auto-detecting current branch (e.g., main) as sync.branch
when no --branch flag was specified. This caused worktree conflicts.
2. Added validation to reject main/master as sync.branch values.
When sync.branch is set to main, the worktree mechanism creates a checkout
of main at .git/beads-worktrees/main/, which prevents git checkout main
from working in the user's working directory.
The sync branch feature should use a dedicated branch like 'beads-sync'.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Executed-By: beads/crew/dave
Rig: beads
Role: crew