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/vertex-array/add-vertex-buffer.md

@@ -0,0 +1,28 @@
+# OpenGLVertexArray::AddVertexBuffer
+
+```cpp
+void AddVertexBuffer(unsigned int buffer, const VertexAttribute& attribute)
+```
+
+添加顶点缓冲区并指定顶点属性。
+
+**参数：**
+- `buffer` - OpenGL 缓冲区对象 ID
+- `attribute` - 顶点属性描述结构体
+
+**示例：**
+
+```cpp
+VertexAttribute attr;
+attr.index = 0;
+attr.count = 3;
+attr.type = GL_FLOAT;
+attr.normalized = GL_FALSE;
+attr.stride = sizeof(Vertex);
+attr.offset = 0;
+vao.AddVertexBuffer(vbo, attr);
+```
+
+## 相关文档
+
+- [OpenGLVertexArray](vertex-array.md) - 返回类总览