X_KNOWN_GAP_PIN_STALE
Means
scripts/lib/known-gaps-unpinned-pins.ts lists a row that is pinned now, closed or renamed
Typical cause
the baseline only falls, and an entry nobody deleted would admit a new unpinned row under the same name
Fix
delete the entry from KNOWN_GAPS_UNPINNED in scripts/lib/known-gaps-unpinned-pins.ts, then bun run scripts/known-gaps-pins.ts --json