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/pipeline-state/create-desc.md

@@ -0,0 +1,53 @@
+# D3D12PipelineState::CreateDesc
+
+## 函数签名
+
+```cpp
+static D3D12_GRAPHICS_PIPELINE_STATE_DESC CreateDesc(
+    ID3D12RootSignature* rootSignature,
+    const D3D12_SHADER_BYTECODE& vs,
+    const D3D12_SHADER_BYTECODE& ps,
+    const D3D12_SHADER_BYTECODE& gs,
+    uint32_t inputElementCount,
+    const D3D12_INPUT_ELEMENT_DESC* inputElements)
+```
+
+## 中文描述
+
+创建图形管线状态描述符，包含着色器和输入布局信息。
+
+## 参数
+
+| 参数 | 类型 | 描述 |
+|------|------|------|
+| `rootSignature` | `ID3D12RootSignature*` | 根签名指针 |
+| `vs` | `D3D12_SHADER_BYTECODE` | 顶点着色器字节码 |
+| `ps` | `D3D12_SHADER_BYTECODE` | 像素着色器字节码 |
+| `gs` | `D3D12_SHADER_BYTECODE` | 几何着色器字节码 |
+| `inputElementCount` | `uint32_t` | 输入元素数量 |
+| `inputElements` | `D3D12_INPUT_ELEMENT_DESC*` | 输入元素描述数组 |
+
+## 返回值
+
+`D3D12_GRAPHICS_PIPELINE_STATE_DESC` - 管线状态描述符
+
+## 复杂度
+
+O(1)
+
+## 示例
+
+```cpp
+D3D12_GRAPHICS_PIPELINE_STATE_DESC psoDesc = D3D12PipelineState::CreateDesc(
+    rootSignature->GetRootSignature(),
+    vsBytecode,
+    psBytecode,
+    gsBytecode,
+    inputElementCount,
+    inputElements);
+```
+
+## 相关文档
+
+- [D3D12PipelineState](pipeline-state.md) - 类总览
+- [D3D12PipelineState::CreateInputElement](create-input-element.md) - 创建输入元素