test(front): add test suite frontend (WIP)

client/vitest.config.ts

@@ -0,0 +1,29 @@
+import { defineConfig } from 'vitest/config';
+import react from '@vitejs/plugin-react';
+
+export default defineConfig({
+  plugins: [react()],
+  test: {
+    root: '.',
+    globals: true,
+    environment: 'jsdom',
+    include: [
+      'tests/**/*.test.{ts,tsx}',
+      'src/**/*.test.{ts,tsx}',
+    ],
+    setupFiles: ['tests/setup.ts'],
+    testTimeout: 15000,
+    hookTimeout: 15000,
+    pool: 'forks',
+    silent: false,
+    reporters: ['verbose'],
+    coverage: {
+      provider: 'v8',
+      reporter: ['lcov', 'text'],
+      reportsDirectory: './coverage',
+      include: ['src/**/*.{ts,tsx}'],
+      exclude: ['src/main.tsx', 'src/vite-env.d.ts'],
+    },
+    css: false,
+  },
+});