- bd init now auto-sets sync.branch to current git branch
- Fixes 'bd sync --status' error after fresh bd init
- Changed all branch detection to use 'git symbolic-ref' instead of 'git rev-parse' to work in fresh repos without commits
- Updated init.go, init_team.go, sync.go, version.go
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Co-Authored-By: Claude <noreply@anthropic.com>