Convert wizard setup to globalSetup

- global-setup.ts: configures wizard before tests run
- playwright.config.ts: uses globalSetup
- wizard.spec.ts: simplified to just verify frontend loads

playwright.config.ts

@@ -1,4 +1,5 @@
 import { defineConfig, devices } from '@playwright/test';
+import path from 'path';
 
 const baseURL = process.env.FRONTEND_URL || 'http://frontend:3000';
 
@@ -19,5 +20,8 @@ export default defineConfig({
       use: { ...devices['Desktop Chrome'] },
     },
   ],
-  // Don't start webServer - services are started via docker-compose
+  // Global setup runs before all tests - configure wizard once
+  globalSetup: path.join(__dirname, 'global-setup.ts'),
+  // Global teardown runs after all tests
+  globalTeardown: undefined,
 });