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/d3d12/fence/get-event-handle.md

@@ -0,0 +1,31 @@
+# D3D12Fence::GetEventHandle
+
+## 函数签名
+
+```cpp
+void* GetEventHandle()
+```
+
+## 中文描述
+
+获取用于 CPU 等待的 event 句柄。用于 `WaitForSingleObject` 等 API 进行阻塞等待。
+
+## 返回值
+
+`void*` - Win32 event 句柄
+
+## 复杂度
+
+O(1)
+
+## 示例
+
+```cpp
+HANDLE eventHandle = static_cast<HANDLE>(d3d12Fence->GetEventHandle());
+WaitForSingleObject(eventHandle, INFINITE);
+```
+
+## 相关文档
+
+- [D3D12Fence](fence.md) - 类总览
+- [D3D12Fence::Wait](../../../threading/task-group/wait.md) - 等待栅栏