restructure project

frontend/package.json

@@ -6,27 +6,36 @@
   "scripts": {
     "dev": "vite",
     "build": "vite build",
-    "preview": "vite preview"
+    "preview": "vite preview",
+    "test": "vitest run",
+    "test:watch": "vitest",
+    "test:coverage": "vitest run --coverage"
   },
   "dependencies": {
+    "@tanstack/react-query": "^5.20.0",
+    "axios": "^1.6.7",
+    "clsx": "^2.1.0",
+    "date-fns": "^3.3.0",
+    "lucide-react": "^0.563.0",
     "react": "^19.2.3",
     "react-dom": "^19.2.3",
-    "lucide-react": "^0.563.0",
-    "recharts": "^3.7.0",
-    "axios": "^1.6.7",
     "react-router-dom": "^6.22.0",
-    "zustand": "^4.5.0",
-    "@tanstack/react-query": "^5.20.0",
-    "date-fns": "^3.3.0",
-    "clsx": "^2.1.0"
+    "recharts": "^3.7.0",
+    "zustand": "^4.5.0"
   },
   "devDependencies": {
+    "@testing-library/jest-dom": "^6.9.1",
+    "@testing-library/react": "^16.3.2",
+    "@testing-library/user-event": "^14.6.1",
     "@types/node": "^22.14.0",
     "@vitejs/plugin-react": "^5.0.0",
+    "@vitest/coverage-v8": "^4.0.18",
+    "autoprefixer": "^10.4.17",
+    "jsdom": "^27.4.0",
+    "postcss": "^8.4.35",
+    "tailwindcss": "^3.4.1",
     "typescript": "~5.8.2",
     "vite": "^6.2.0",
-    "tailwindcss": "^3.4.1",
-    "autoprefixer": "^10.4.17",
-    "postcss": "^8.4.35"
+    "vitest": "^4.0.18"
   }
 }