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/command-list/set-blend-state.md

@@ -0,0 +1,23 @@
+# RHICommandList::SetBlendState
+
+```cpp
+virtual void SetBlendState(const BlendState& state) = 0;
+```
+
+设置混合状态。
+
+**参数：**
+- `state` - 混合状态结构体
+
+**示例：**
+
+```cpp
+BlendState blendState;
+blendState.alphaToCoverageEnable = false;
+blendState.independentBlendEnable = false;
+cmdList->SetBlendState(blendState);
+```
+
+## 相关文档
+
+- [RHICommandList 总览](command-list.md) - 返回类总览