fix: improve doc link navigation and tree display

- Fix link resolution with proper relative/absolute path handling
- Improve link styling with underline decoration
- Hide leaf nodes from tree, only show directories
- Fix log file path for packaged app

docs/api/rhi/device/initialize.md

@@ -0,0 +1,39 @@
+# RHIDevice::Initialize
+
+```cpp
+virtual bool Initialize(const RHIDeviceDesc& desc) = 0;
+```
+
+初始化 RHI 设备，建立与图形适配器的连接。
+
+**参数：**
+- `desc` - 设备描述符，包含窗口句柄、分辨率、调试选项等配置
+
+**返回：** 成功返回 `true`，失败返回 `false`
+
+**复杂度：** O(1)
+
+**示例：**
+
+```cpp
+RHIDeviceDesc desc;
+desc.windowHandle = hwnd;
+desc.width = 1920;
+desc.height = 1080;
+desc.appName = L"MyApp";
+desc.enableDebugLayer = true;
+desc.enableGPUValidation = true;
+
+RHIDevice* device = RHIFactory::CreateRHIDevice(RHIType::D3D12);
+if (device->Initialize(desc)) {
+    // 设备初始化成功
+} else {
+    // 处理初始化失败
+    delete device;
+}
+```
+
+## 相关文档
+
+- [RHIDevice 总览](device.md) - 返回类总览
+- [RHIDeviceDesc](../types/types.md) - 设备描述结构体