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/login/+page.svelte

@@ -37,20 +37,24 @@
 		{#if error}
 			<span class="text-red-600 dark:text-gray-300">{error}</span>
 		{/if}
-		<form
-			onsubmit={handleSubmit}
-			class="my-6 flex flex-col items-center justify-center"
-		>
+		<form onsubmit={handleSubmit} class="my-6 flex flex-col items-center justify-center">
 			<p>Login</p>
 			<input type="email" placeholder="Email Address" bind:value={email} required class="my-2" />
 			<input type="password" placeholder="Password" bind:value={password} required class="my-2" />
-			<button class="mt-4 rounded bg-blue-200 px-4 py-2 dark:bg-gray-700 dark:text-gray-100" type="submit">Sign In</button>
+			<button
+				class="mt-4 rounded bg-blue-200 px-4 py-2 dark:bg-gray-700 dark:text-gray-100"
+				type="submit">Sign In</button
+			>
 		</form>
 		<div class="mt-2 flex flex-col items-center gap-2">
-			<a href="/forgot-password" class="text-sm text-blue-600 hover:text-blue-800 dark:text-gray-400 dark:hover:text-gray-200"
+			<a
+				href="/forgot-password"
+				class="text-sm text-blue-600 hover:text-blue-800 dark:text-gray-400 dark:hover:text-gray-200"
 				>Forgot Password?</a
 			>
-			<a href="/register" class="text-sm text-blue-600 hover:text-blue-800 dark:text-gray-400 dark:hover:text-gray-200"
+			<a
+				href="/register"
+				class="text-sm text-blue-600 hover:text-blue-800 dark:text-gray-400 dark:hover:text-gray-200"
 				>Don't have an account? Register</a
 			>
 		</div>