X_FIX_PROSE_PIN_UNEXPLAINED
Means
a FIX_PROSE_PINS row carries a blank reason
Typical cause
a { count, reason } row with an empty reason holds nothing, and its count is not honoured — rewrite those lines, or write the reason into the row in scripts/lib/fix-prose-pins.ts
Fix
bun run scripts/fix-prose.ts --explain --json