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/hooks.server.spec.ts

@@ -87,9 +87,7 @@ describe('hooks.server handle', () => {
 		const event = createMockEvent();
 		await handle({ event, resolve: event.resolve });
 
-		expect(svelteKitHandler).toHaveBeenCalledWith(
-			expect.objectContaining({ building: false })
-		);
+		expect(svelteKitHandler).toHaveBeenCalledWith(expect.objectContaining({ building: false }));
 	});
 
 	it('calls svelteKitHandler with auth instance', async () => {