Initial commit: X-Server Mobile enterprise tool system

- Frontend: React 18 + TypeScript + Vite + Ant Design Mobile
- Backend: PHP 8.5 + Webman 2.x + MySQL + Redis
- i18n support: Chinese, English, Russian, Spanish, French
- Approval workflow engine
- Docker development environment
- Feishu integration

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

backend/composer.json

@@ -0,0 +1,43 @@
+{
+  "name": "x-server/mobile-backend",
+  "description": "Enterprise Tool System Backend",
+  "type": "project",
+  "require": {
+    "php": ">=8.1",
+    "workerman/webman": "^2.0",
+    "workerman/webman-framework": "^2.0",
+    "illuminate/database": "^10.0",
+    "illuminate/pagination": "^10.0",
+    "illuminate/redis": "^10.0",
+    "illuminate/events": "^10.0",
+    "firebase/php-jwt": "^6.10",
+    "vlucas/phpdotenv": "^5.6"
+  },
+  "require-dev": {
+    "mockery/mockery": "^1.5",
+    "phpunit/phpunit": "^10.0"
+  },
+  "autoload": {
+    "psr-4": {
+      "App\\": "app/"
+    }
+  },
+  "scripts": {
+    "post-package-install": [
+      "support\\Plugin::install"
+    ],
+    "post-package-update": [
+      "support\\Plugin::install"
+    ]
+  },
+  "config": {
+    "audit": {
+      "ignore": {
+        "firebase/php-jwt": "PKSA-y2cr-5h3j-g3ys"
+      }
+    },
+    "allow-plugins": {
+      "*": true
+    }
+  }
+}