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/app.html

@@ -1,24 +1,25 @@
 <!doctype html>
 <html lang="en">
+	<head>
+		<meta charset="utf-8" />
+		<meta name="viewport" content="width=device-width, initial-scale=1" />
+		<script>
+			(function () {
+				const theme = localStorage.getItem('theme');
+				if (
+					theme === 'dark' ||
+					(!theme && window.matchMedia('(prefers-color-scheme: dark)').matches)
+				) {
+					document.documentElement.classList.add('dark');
+				} else {
+					document.documentElement.classList.remove('dark');
+				}
+			})();
+		</script>
+		%sveltekit.head%
+	</head>
 
-<head>
-	<meta charset="utf-8" />
-	<meta name="viewport" content="width=device-width, initial-scale=1" />
-	<script>
-		(function () {
-			const theme = localStorage.getItem('theme');
-			if (theme === 'dark' || (!theme && window.matchMedia('(prefers-color-scheme: dark)').matches)) {
-				document.documentElement.classList.add('dark');
-			} else {
-				document.documentElement.classList.remove('dark');
-			}
-		})();
-	</script>
-	%sveltekit.head%
-</head>
-
-<body class="m-0" data-sveltekit-preload-data="hover">
-	<div class="h-dvh w-dvw flex flex-col">%sveltekit.body%</div>
-</body>
-
-</html>
+	<body class="m-0" data-sveltekit-preload-data="hover">
+		<div class="flex h-dvh w-dvw flex-col">%sveltekit.body%</div>
+	</body>
+</html>