feat: initialize project with Symfony, React, and Tailwind CSS setup

- Add package.json with development and production dependencies
- Create postcss.config.js for Tailwind CSS integration
- Implement AdminController for handling admin routes
- Add admin index template with React root element
- Create base template for consistent layout
- Configure TypeScript with tsconfig.json
- Set up Webpack configuration for asset management

composer.json

@@ -29,8 +29,11 @@
         "symfony/runtime": "7.4.*",
         "symfony/security-bundle": "7.4.*",
         "symfony/serializer": "7.4.*",
+        "symfony/twig-bundle": "7.4.*",
         "symfony/uid": "7.4.*",
+        "symfony/ux-react": "^2.36",
         "symfony/validator": "7.4.*",
+        "symfony/webpack-encore-bundle": "^2.4",
         "symfony/yaml": "7.4.*",
         "twig/twig": "*",
         "zircote/swagger-php": "*"