The refinery was checking git branches instead of the beads merge queue.
This caused MRs to pile up when branches were deleted but MR beads remained.
- manager.go: Queue() now queries beads for type=merge-request issues
- refinery.md.tmpl: Updated queue-scan to use gt mq list
- mol-refinery-patrol.formula.toml: Updated queue-scan step instructions
36f17bbadd