feat: 新增 Docker 部署支持、Swoole/Octane 集成及相关优化

- 添加 Dockerfile 与多套 docker-compose 配置（开发/生产环境）
- 集成 Laravel Octane (Swoole) 提升性能
- 新增健康检查、监控脚本及部署文档
- 新增 Docker 镜像离线导入包（MySQL/Redis/Meilisearch）
- 优化文档转换、预览服务及队列任务
- 添加 CreateAdminUser 命令与路由健康检查接口
- 新增 Swoole 队列兼容性测试套件

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

routes/web.php

@@ -2,11 +2,88 @@
 
 use App\Http\Controllers\DocumentController;
 use Illuminate\Support\Facades\Route;
+use Illuminate\Support\Facades\DB;
+use Illuminate\Support\Facades\Cache;
 
 Route::get('/', function () {
     return view('welcome');
 });
 
+// 健康检查路由（用于Docker健康检查）
+Route::get('/health', function () {
+    $services = [];
+    $allHealthy = true;
+    
+    try {
+        // 检查数据库连接
+        DB::connection()->getPdo();
+        $services['database'] = 'connected';
+    } catch (Exception $e) {
+        $services['database'] = 'disconnected';
+        $allHealthy = false;
+    }
+    
+    try {
+        // 检查Redis连接
+        if (config('cache.default') === 'redis') {
+            Cache::store('redis')->put('health_check', 'ok', 10);
+            Cache::store('redis')->forget('health_check');
+            $services['redis'] = 'connected';
+        } else {
+            $services['redis'] = 'not_configured';
+        }
+    } catch (Exception $e) {
+        $services['redis'] = 'disconnected';
+        $allHealthy = false;
+    }
+    
+    try {
+        // 检查Meilisearch连接
+        if (config('scout.driver') === 'meilisearch') {
+            $client = new \GuzzleHttp\Client();
+            $response = $client->get(config('scout.meilisearch.host') . '/health', [
+                'timeout' => 5,
+                'headers' => [
+                    'Authorization' => 'Bearer ' . config('scout.meilisearch.key')
+                ]
+            ]);
+            
+            if ($response->getStatusCode() === 200) {
+                $services['meilisearch'] = 'connected';
+            } else {
+                $services['meilisearch'] = 'unhealthy';
+                $allHealthy = false;
+            }
+        } else {
+            $services['meilisearch'] = 'not_configured';
+        }
+    } catch (Exception $e) {
+        $services['meilisearch'] = 'disconnected';
+        $allHealthy = false;
+    }
+    
+    // 检查存储目录是否可写
+    try {
+        $testFile = storage_path('logs/health_check_test.tmp');
+        file_put_contents($testFile, 'test');
+        unlink($testFile);
+        $services['storage'] = 'writable';
+    } catch (Exception $e) {
+        $services['storage'] = 'not_writable';
+        $allHealthy = false;
+    }
+    
+    $status = $allHealthy ? 'ok' : 'degraded';
+    $httpCode = $allHealthy ? 200 : 503;
+    
+    return response()->json([
+        'status' => $status,
+        'timestamp' => now()->toISOString(),
+        'services' => $services,
+        'version' => config('app.version', '1.0.0')
+    ], $httpCode);
+})->name('health.check');
+
 // 文档预览和下载路由（需要认证）
 Route::middleware(['auth'])->group(function () {
     Route::get('/documents/{document}/preview', [DocumentController::class, 'preview'])