admin: Superforms + Zod validation, three-address-defaults schema, profiles toast fix

- Add Superforms + Zod 4 for all admin form validation
- Replace address isDefault with three separate boolean defaults (Mailing, Billing, Shipping)
- Update profiles page with three-checkbox address form and toast improvements
- Convert all admin page server actions to pass request directly to crud
- Export superFormErrorsToFieldErrors helper for profiles server actions
- Regenerate Prisma client for new schema fields

README.md

@@ -1 +1,21 @@
 # Rhema Wave Technologies - User Portal
+
+SvelteKit 2 + Svelte 5 + Tailwind CSS v4 + Prisma 7 + PostgreSQL + Better-Auth.
+
+## Admin
+
+Admin CRUD pages at `/admin`. 9 models have per-page routes with modals for create/edit:
+
+| Included | Excluded              |
+| -------- | --------------------- |
+| users    | Session (Better Auth) |
+| profiles | Account (Better Auth) |
+| addresses| Verification (Better Auth) |
+| user-roles | UserProclamations (composite key) |
+| proclamations | |
+| solfeggio-frequencies | |
+| proclamation-categories | |
+| license-keys (list-only) | |
+| subscription-levels | |
+
+See `src/lib/svelte-admin/README.md` for architecture and configuration docs.