Dry-run surfaced 2 rows with בל"מ prefix but proceeding_type=ערר. Since the migration strips the prefix, a wrong proceeding_type would silently lose the בל"מ signal — must be chair-adjudicated, not auto-applied. Chair table now flags 4 rows: 2 DUP_CHECK (8047-23) + 2 PROC_MISMATCH. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>