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/routes/(protected)/admin/license-keys/+page.server.ts

@@ -0,0 +1,68 @@
+import type { PageServerLoad } from './$types';
+import { getModelConfig } from '$lib/svelte-admin/registry';
+import { loadRecords } from '$lib/svelte-admin/crud';
+import { prisma } from '$lib/db';
+import { sendMail } from '$lib/server/resend';
+import { error } from '@sveltejs/kit';
+
+const config = getModelConfig('license-keys')!;
+
+export const load: PageServerLoad = async ({ locals }) => {
+	return loadRecords(locals, config);
+};
+
+export const actions = {
+	createKey: async ({ request, locals }) => {
+		if (!locals.user) throw error(401, 'Unauthorized');
+
+		const formData = await request.formData();
+		const email = formData.get('email')?.toString();
+		const deactivateOld = formData.get('deactivateOld') === 'on';
+
+		if (!email) {
+			return { success: false, error: 'Email is required' };
+		}
+
+		const user = await prisma.user.findUnique({ where: { email } });
+		if (!user) {
+			return { success: false, error: 'No user found with that email' };
+		}
+
+		// Deactivate old keys if requested
+		if (deactivateOld) {
+			await prisma.licenseKey.updateMany({
+				where: { userId: user.id, active: true },
+				data: { active: false }
+			});
+		}
+
+		// Generate 16-char hex UUID grouped as 4-4-4-4
+		const hex = crypto.randomUUID().replace(/-/g, '').slice(0, 16).toUpperCase();
+		const key = `${hex.slice(0, 4)}-${hex.slice(4, 8)}-${hex.slice(8, 12)}-${hex.slice(12, 16)}`;
+
+		const licenseKey = await prisma.licenseKey.create({
+			data: {
+				key,
+				active: true,
+				level: 'standard',
+				userId: user.id
+			}
+		});
+
+		// Send email with license key
+		try {
+			await sendMail({
+				to: email,
+				subject: 'Your License Key',
+				data: {
+					firstName: user.name ?? 'Valued Customer',
+					licenseKey: key
+				}
+			});
+		} catch (e) {
+			console.error('Failed to send license key email:', e);
+		}
+
+		return { success: true, error: undefined };
+	}
+};