Replace upsertSigners with full delete+insert to handle frontend temp UUIDs

Shipped

April 12, 2026 at 10:26 PM UTC

Author

Kamo

Commit

4d0bc76

The frontend assigns temporary crypto.randomUUID() values to newly-added signers before any backend call. The previous upsert-by-uid logic would throw 404 for these non-existent IDs. Full replace (delete all + insert all) is the correct semantics: the client always sends the complete desired list, and the response returns the canonical DB-assigned UUIDs.