appealIncident was gated by requireMember but the incident UPDATE is RLS-
restricted to admin/board, so a reporter's appeal inserted a draft proposal,
updated 0 incident rows, and returned success — an orphan proposal. Gate with
ADMIN_ROLES to match the write, and assert the link UPDATE affected a row
(.select), rolling back the draft proposal if it did not.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>