Relase: Clean up and condensing (#3321)

scripts/tests/vitest.config.ts

@@ -0,0 +1,20 @@
+/**
+ * @license
+ * Copyright 2025 Google LLC
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import { defineConfig } from 'vitest/config';
+
+export default defineConfig({
+  test: {
+    globals: true,
+    environment: 'node',
+    include: ['scripts/tests/**/*.test.js'],
+    setupFiles: ['scripts/tests/test-setup.ts'],
+    coverage: {
+      provider: 'v8',
+      reporter: ['text', 'lcov'],
+    },
+  },
+});