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/shader/get-d3d12-bytecode.md

@@ -0,0 +1,29 @@
+# D3D12Shader::GetD3D12Bytecode
+
+## 函数签名
+
+```cpp
+const D3D12_SHADER_BYTECODE GetD3D12Bytecode() const
+```
+
+## 中文描述
+
+获取 D3D12 着色器字节码结构。
+
+## 返回值
+
+`D3D12_SHADER_BYTECODE` - D3D12 着色器字节码结构
+
+## 复杂度
+
+O(1)
+
+## 示例
+
+```cpp
+D3D12_SHADER_BYTECODE bytecode = shader->GetD3D12Bytecode();
+```
+
+## 相关文档
+
+- [D3D12Shader](shader.md) - 类总览