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

.prettierrc

@@ -4,10 +4,7 @@
 	"trailingComma": "none",
 	"semi": true,
 	"printWidth": 100,
-	"plugins": [
-		"prettier-plugin-svelte",
-		"prettier-plugin-tailwindcss"
-	],
+	"plugins": ["prettier-plugin-svelte", "prettier-plugin-tailwindcss"],
 	"overrides": [
 		{
 			"files": "*.svelte",
@@ -17,4 +14,4 @@
 		}
 	],
 	"tailwindStylesheet": "./src/routes/layout.css"
-}
+}