Refactor code structure for improved readability and maintainability

frontend/README.md

@@ -1,49 +1,73 @@
-# Frontend - Quasar Game Library
+# React + TypeScript + Vite
 
-React + Vite + React Query UI for Quasar.
+This template provides a minimal setup to get React working in Vite with HMR and some ESLint rules.
 
-## Setup
+Currently, two official plugins are available:
 
-```bash
-cd frontend
-yarn install
-yarn dev  # Start Vite dev server on http://localhost:5173
+- [@vitejs/plugin-react](https://github.com/vitejs/vite-plugin-react/blob/main/packages/plugin-react) uses [Babel](https://babeljs.io/) (or [oxc](https://oxc.rs) when used in [rolldown-vite](https://vite.dev/guide/rolldown)) for Fast Refresh
+- [@vitejs/plugin-react-swc](https://github.com/vitejs/vite-plugin-react/blob/main/packages/plugin-react-swc) uses [SWC](https://swc.rs/) for Fast Refresh
+
+## React Compiler
+
+The React Compiler is not enabled on this template because of its impact on dev & build performances. To add it, see [this documentation](https://react.dev/learn/react-compiler/installation).
+
+## Expanding the ESLint configuration
+
+If you are developing a production application, we recommend updating the configuration to enable type-aware lint rules:
+
+```js
+export default defineConfig([
+  globalIgnores(['dist']),
+  {
+    files: ['**/*.{ts,tsx}'],
+    extends: [
+      // Other configs...
+
+      // Remove tseslint.configs.recommended and replace with this
+      tseslint.configs.recommendedTypeChecked,
+      // Alternatively, use this for stricter rules
+      tseslint.configs.strictTypeChecked,
+      // Optionally, add this for stylistic rules
+      tseslint.configs.stylisticTypeChecked,
+
+      // Other configs...
+    ],
+    languageOptions: {
+      parserOptions: {
+        project: ['./tsconfig.node.json', './tsconfig.app.json'],
+        tsconfigRootDir: import.meta.dirname,
+      },
+      // other options...
+    },
+  },
+])
 ```
 
-## Testing
+You can also install [eslint-plugin-react-x](https://github.com/Rel1cx/eslint-react/tree/main/packages/plugins/eslint-plugin-react-x) and [eslint-plugin-react-dom](https://github.com/Rel1cx/eslint-react/tree/main/packages/plugins/eslint-plugin-react-dom) for React-specific lint rules:
 
-```bash
-yarn test       # Run Vitest in watch mode
-yarn test:run   # Run once
+```js
+// eslint.config.js
+import reactX from 'eslint-plugin-react-x'
+import reactDom from 'eslint-plugin-react-dom'
+
+export default defineConfig([
+  globalIgnores(['dist']),
+  {
+    files: ['**/*.{ts,tsx}'],
+    extends: [
+      // Other configs...
+      // Enable lint rules for React
+      reactX.configs['recommended-typescript'],
+      // Enable lint rules for React DOM
+      reactDom.configs.recommended,
+    ],
+    languageOptions: {
+      parserOptions: {
+        project: ['./tsconfig.node.json', './tsconfig.app.json'],
+        tsconfigRootDir: import.meta.dirname,
+      },
+      // other options...
+    },
+  },
+])
 ```
-
-## Building
-
-```bash
-yarn build      # Build for production (dist/)
-yarn preview    # Preview production build locally
-```
-
-## Structure
-
-```
-src/
-├── routes/          # Page components
-├── components/      # Reusable components
-├── hooks/           # TanStack Query hooks
-├── lib/             # API client, utilities
-├── types/           # TypeScript types
-└── styles.css       # Tailwind CSS
-```
-
-## API Integration
-
-Backend API runs on `http://localhost:3000`.
-
-Frontend proxies requests via `.env`:
-
-```
-VITE_API_URL=http://localhost:3000
-```
-
-All API calls go through `src/lib/api.ts`.