claude@clouddev1
64eee3ed6d
Step 1 (Cargo + CLI): - add the `backup` feature to rusqlite (online backup API) - `--no-undo` flag (test-first) + help-banner entry Step 2 (snapshot store, src/undo.rs): - SnapshotStore: a persisted undo ring + redo stack under <project>/.snapshots/ (index.yaml + per-snapshot payload dirs) - hybrid whole-project snapshot: db via backup API + project.yaml / data/*.csv copied as files; restore is text-first, db-last (ADR-0015 §6 commit-db-last) - stage/finalize/discard, undo/redo (each snapshots current to keep the inverse possible), N=50 eviction, redo-cleared-on-new-work, orphan/staging cleanup, monotonic ids - 12 Tier-1 tests; adds a crate-visible persistence::utc_iso8601_now No worker wiring yet (step 3). 1674 passed / 0 failed / 1 ignored; clippy clean.