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/opengl/command-list/set-viewport.md

@@ -0,0 +1,24 @@
+# OpenGLCommandList::SetViewport
+
+```cpp
+void SetViewport(const Viewport& viewport)
+```
+
+设置视口。
+
+**参数：**
+- `viewport` - 视口结构
+
+**示例：**
+
+```cpp
+Viewport viewport;
+viewport.x = 0; viewport.y = 0;
+viewport.width = 800; viewport.height = 600;
+viewport.minDepth = 0.0f; viewport.maxDepth = 1.0f;
+commandList->SetViewport(viewport);
+```
+
+## 相关文档
+
+- [OpenGLCommandList](command-list.md) - 返回类总览