Adds a pull-based legal-update flow instead of fanning out through the
petId-scoped Notification model (ToS/Datenschutz acceptance is an
Owner-level concern, not a per-pet one):
- Prisma: LegalDocType enum, LegalDocumentVersion model,
Owner.legalAcknowledgedAt.
- trpc/routers/legal.ts: admin publish/listVersions, owner-facing
getPendingUpdate/acknowledge. assertAdmin exported from admin.ts
instead of duplicated.
- Admin panel /legal: publish form (doc type + change summary) + history.
Publishing IS sending — every owner sees it on next load until
acknowledged; republishing re-surfaces it for everyone.
- LegalUpdateBanner mounted in (app)/layout.tsx: non-dismissable sheet
with the stored change summary, "Verstanden" (acknowledge) and
"Konto löschen" (routes into DeleteAccountDialog via new
?deleteAccount=1 auto-open support) actions.
Closes the last DEBUG-List.md item.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>