deleteForm now permanently deletes the form AND all submissions via FK
cascade (the submissions-refusal guard is removed); requires an explicit
confirm:true (deleteFormSchema) so an accidental call cannot destroy
records, and audits the destroyed count. New deleteSubmission
(forms.manage, service client since form_submissions has no client write
policy, space-scoped, audited). New relinkAllSubmissions (forms.manage):
re-runs email->member linking space-wide, members earliest-joined first
for deterministic shared-email claim (reuses linkSubmissionsByEmail).
Moheeb Zara
c4ae5d27ac