fix: improve doc link navigation and tree display

- Fix link resolution with proper relative/absolute path handling
- Improve link styling with underline decoration
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- Fix log file path for packaged app

docs/api/rhi/d3d12/descriptor-heap/create-desc.md

@@ -0,0 +1,20 @@
+# D3D12DescriptorHeap::CreateDesc
+
+```cpp
+static D3D12_DESCRIPTOR_HEAP_DESC CreateDesc(DescriptorHeapType type, uint32_t numDescriptors, bool shaderVisible = false);
+```
+
+创建描述符堆描述（静态方法）。
+
+**参数：**
+- `type` - 描述符堆类型
+- `numDescriptors` - 描述符数量
+- `shaderVisible` - 是否对 Shader 可见
+
+**返回：** D3D12 描述符堆描述
+
+**复杂度：** O(1)
+
+## 相关文档
+
+- [D3D12DescriptorHeap 总览](descriptor-heap.md) - 返回类总览