first commit

packages/frontend/vitest.config.ts

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+import react from "@vitejs/plugin-react";
+import path from "node:path";
+import { defineConfig } from "vitest/config";
+
+export default defineConfig({
+  plugins: [react()],
+  resolve: {
+    alias: { "@": path.resolve(__dirname, "./src") },
+  },
+  test: {
+    environment: "jsdom",
+    globals: true,
+    setupFiles: "./vitest.setup.ts",
+    include: ["src/**/*.{test,spec}.{ts,tsx}"],
+  },
+});