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

src/lib/svelte-admin/form-data.ts

@@ -31,6 +31,10 @@ export function extractFormData(
 				data[field] = val === '' ? null : new Date(val);
 				break;
 			}
+			case 'Tiptap': {
+				data[field] = raw?.toString() ?? '';
+				break;
+			}
 			default: {
 				data[field] = raw?.toString() ?? '';
 				break;