fix: improve doc link navigation and tree display

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docs/api/rhi/command-queue/command-queue.md

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+# RHICommandQueue
+
+**命名空间**: `XCEngine::RHI`
+
+**类型**: `class` (abstract)
+
+**描述**: GPU 命令队列抽象接口，负责提交和执行命令列表，以及 GPU/CPU 同步。
+
+## 公共方法
+
+| 方法 | 描述 |
+|------|------|
+| [`Shutdown`](shutdown.md) | 关闭并释放资源 |
+| [`ExecuteCommandLists`](execute-command-lists.md) | 执行命令列表 |
+| [`Signal`](signal.md) | 信号栅栏 |
+| [`Wait`](../../threading/task-group/wait.md) | 等待栅栏 |
+| [`GetCompletedValue`](get-completed-value.md) | 获取完成值 |
+| [`WaitForIdle`](wait-for-idle.md) | 等待空闲 |
+| [`GetType`](get-type.md) | 获取队列类型 |
+| [`GetTimestampFrequency`](get-timestamp-frequency.md) | 获取时间戳频率 |
+| [`GetNativeHandle`](get-native-handle.md) | 获取原生句柄 |
+
+## 命令队列类型 (CommandQueueType)
+
+| 枚举值 | 描述 |
+|--------|------|
+| `Direct` | 直接队列，用于图形和计算命令 |
+| `Compute` | 计算队列，专门用于计算着色器 |
+| `Copy` | 复制队列，专门用于资源复制 |
+
+## 使用示例
+
+```cpp
+CommandQueueDesc queueDesc;
+queueDesc.queueType = (uint32_t)CommandQueueType::Direct;
+RHICommandQueue* commandQueue = device->CreateCommandQueue(queueDesc);
+
+FenceDesc fenceDesc;
+RHIFence* fence = device->CreateFence(fenceDesc);
+
+commandQueue->ExecuteCommandLists(1, (void**)&commandList);
+commandQueue->Signal(fence, 1);
+fence->Wait(1);
+```
+
+## 相关文档
+
+- [../rhi/rhi.md](../rhi.md) - RHI 模块总览
+- [RHICommandList](../command-list/command-list.md) - 命令列表
+- [RHIFence](../fence/fence.md) - 同步栅栏