When .beads/redirect points to another location that crosses directory
boundaries, isExternalBeadsDir() can return true even when both paths
are in the same git repo. Previously, this would trigger the direct
commit mode, bypassing the configured sync.branch workflow.
Now we check hasSyncBranchConfig before entering the external path.
When sync.branch is configured, we skip direct-commit mode and use
the sync.branch worktree workflow instead, which properly handles
copying JSONL files regardless of where the source .beads lives.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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