feat: export read-only offline recovery archives

Capture images, typed intents, attempts, conflicts, receipts and ID allocation in a consistent SQLite backup. Publish to a new path and identify archives separately so they cannot become a second active replica. Add content-free summaries and read-only inspection.

Validated with 54 offline tests, four doctests, concurrent export histories, Clippy and iOS device/simulator linking.

Assisted-by: gpt-6-astra
e076b40125clover caruso committed on 9/7/2026, 11:23:01 PMparentb253974
7 files changedLine totals unavailable