QA-1: Playwright e2e harness - config (phone 390px + desktop projects, mock/live via E2E_BASE_URL), npm run e2e, vitest excludes e2e/

gerbil-manager-web/vite.config.ts

@@ -1,4 +1,5 @@
 import { defineConfig } from 'vite'
+import { configDefaults } from 'vitest/config'
 import react from '@vitejs/plugin-react'
 
 // https://vite.dev/config/
@@ -10,4 +11,8 @@ export default defineConfig({
     // the port; this only widens the host from localhost to 0.0.0.0.
     host: true,
   },
+  test: {
+    // QA-1: e2e/ gehört Playwright (npm run e2e), nicht vitest.
+    exclude: [...configDefaults.exclude, 'e2e/**'],
+  },
 })