feat(web): Tailwind 4 + shadcn/ui + ESLint

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

web/package.json

@@ -14,18 +14,35 @@
     "gen:api": "openapi-typescript http://localhost:8080/api-docs/openapi.json -o src/api/schema.d.ts"
   },
   "dependencies": {
+    "@base-ui/react": "^1.5.0",
+    "@fontsource-variable/geist": "^5.2.9",
+    "class-variance-authority": "^0.7.1",
+    "clsx": "^2.1.1",
+    "lucide-react": "^1.17.0",
     "react": "^19.1.0",
-    "react-dom": "^19.1.0"
+    "react-dom": "^19.1.0",
+    "shadcn": "^4.10.0",
+    "tailwind-merge": "^3.6.0",
+    "tw-animate-css": "^1.4.0"
   },
   "devDependencies": {
+    "@eslint/js": "^10.0.1",
+    "@tailwindcss/vite": "^4.3.0",
     "@testing-library/jest-dom": "^6.6.3",
     "@testing-library/react": "^16.3.0",
     "@testing-library/user-event": "^14.6.1",
+    "@types/node": "^25.9.1",
     "@types/react": "^19.1.5",
     "@types/react-dom": "^19.1.3",
     "@vitejs/plugin-react": "^4.5.2",
+    "eslint": "^10.4.1",
+    "eslint-plugin-react-hooks": "^7.1.1",
+    "eslint-plugin-react-refresh": "^0.5.2",
+    "globals": "^17.6.0",
     "jsdom": "^26.1.0",
+    "tailwindcss": "^4.3.0",
     "typescript": "~5.8.3",
+    "typescript-eslint": "^8.60.1",
     "vite": "^6.3.5",
     "vitest": "^3.2.2"
   }