Gridproof — Bulk Editor + Undo

Ever run a bulk edit, then spent the evening checking what it actually did? Gridproof shows its work. Every job starts with a checkpoint snapshot and a preview of every exact change; nothing is written until you type the count to confirm. After execution it re-reads every entity and hands you the receipt: per-item evidence that each change landed, and a flag for anything that did not. Rollback restores the snapshot without clobbering newer edits. Every change is logged, exportable as CSV.