feat(tests): Jest backend (38 tests), Jest RTL frontend (28 tests), Playwright E2E spec

frontend/package.json

@@ -6,9 +6,8 @@
     "dev": "vite",
     "build": "vite build",
     "preview": "vite preview",
-    "test": "vitest run",
-    "test:watch": "vitest",
-    "test:coverage": "vitest run --coverage",
+    "test": "jest --runInBand --forceExit",
+    "test:coverage": "jest --runInBand --forceExit --coverage",
     "test:e2e": "playwright test"
   },
   "dependencies": {
@@ -19,19 +18,32 @@
     "react-router-dom": "^6.24.0"
   },
   "devDependencies": {
+    "@babel/core": "^7.24.7",
+    "@babel/preset-env": "^7.24.7",
+    "@babel/preset-react": "^7.24.6",
     "@playwright/test": "^1.44.1",
     "@testing-library/jest-dom": "^6.4.6",
-    "@testing-library/react": "^16.0.0",
+    "@testing-library/react": "^14.3.1",
     "@testing-library/user-event": "^14.5.2",
-    "@types/react": "^18.3.3",
-    "@types/react-dom": "^18.3.0",
     "@vitejs/plugin-react": "^4.2.1",
-    "@vitest/coverage-v8": "^1.6.0",
     "autoprefixer": "^10.4.19",
-    "jsdom": "^24.1.0",
+    "babel-jest": "^29.7.0",
+    "identity-obj-proxy": "^3.0.0",
+    "jest": "^29.7.0",
+    "jest-environment-jsdom": "^29.7.0",
     "postcss": "^8.4.39",
     "tailwindcss": "^3.4.4",
-    "vite": "^4.5.3",
-    "vitest": "^1.6.0"
+    "vite": "^4.5.3"
+  },
+  "jest": {
+    "testEnvironment": "jsdom",
+    "setupFilesAfterEnv": ["<rootDir>/tests/setup.js"],
+    "testMatch": ["**/tests/**/*.test.{js,jsx}"],
+    "transform": {
+      "^.+\\.[jt]sx?$": "babel-jest"
+    },
+    "moduleNameMapper": {
+      "\\.(css|less|scss|sass)$": "identity-obj-proxy"
+    }
   }
 }