chore: add & config vitests coverage dependency

Author: irahardianto

apps/frontend/package-lock.json

@@ -26,6 +26,7 @@
     "@pinia/testing": "^1.0.3",
     "@types/node": "^24.10.1",
     "@vitejs/plugin-vue": "^6.0.1",
+    "@vitest/coverage-v8": "^4.0.16",
     "@vue/test-utils": "^2.4.6",
     "@vue/tsconfig": "^0.8.1",
     "autoprefixer": "^10.4.23",

apps/frontend/package.json

@@ -13,6 +13,11 @@ export default defineConfig({
   },
   test: {
     environment: 'jsdom',
+    coverage: {
+      provider: 'v8',
+      reporter: ['text', 'json-summary', 'json', 'lcov'],
+      reportOnFailure: true,
+    },
   },
   server: {
     proxy: {