Migration 020 (019 reserved per plan) introduces two SECURITY DEFINER
RPCs that back the trash drawer's per-row actions:
- restore_list(uuid): clears deleted_at; requires caller to be admin
or member of the owning collective; rejects if the list is not
currently in trash (defensive)
- hard_delete_list(uuid): permanently deletes a soft-deleted list;
same role guard; rejects if the list is still active
Both close the existing UI gap where guest could in principle issue
the equivalent UPDATE (the FROM-UPDATE policy is is_active_member,
which excludes guest, but the surface area is broader than these two
intents — the RPCs make the contract explicit).
The lists drawer already exposed the Restore + Delete-for-ever
buttons; only the store calls swap from chained PostgREST writes to
.rpc() — the UI itself is unchanged.
pgTAP 012 (8 assertions) covers existence, restore happy path,
non-member rejection, hard-delete happy path, active-list guard.
Integration T-10..T-14 (5 vitest) verifies the wire format the store
relies on (rpc errors, row state, active-listing visibility).
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
