Setup React @tanstack/router, copy shadcn Authentication page

frontend/package.json

@@ -15,6 +15,9 @@
     "preview": "vite preview"
   },
   "dependencies": {
+    "@radix-ui/react-label": "^2.1.0",
+    "@radix-ui/react-slot": "^1.1.0",
+    "@tanstack/react-router": "^1.81.1",
     "class-variance-authority": "^0.7.0",
     "clsx": "^2.1.1",
     "lucide-react": "^0.456.0",
@@ -25,6 +28,8 @@
   },
   "devDependencies": {
     "@eslint/js": "^9.13.0",
+    "@tanstack/router-devtools": "^1.81.1",
+    "@tanstack/router-plugin": "^1.79.0",
     "@types/node": "^22.9.0",
     "@types/react": "^18.3.12",
     "@types/react-dom": "^18.3.1",
@@ -35,6 +40,7 @@
     "eslint-plugin-react-refresh": "^0.4.14",
     "globals": "^15.11.0",
     "postcss": "^8.4.47",
+    "prettier": "^3.3.3",
     "tailwindcss": "^3.4.14",
     "typescript": "~5.6.2",
     "typescript-eslint": "^8.11.0",