fix: improve doc link navigation and tree display

- Fix link resolution with proper relative/absolute path handling
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- Hide leaf nodes from tree, only show directories
- Fix log file path for packaged app

docs/api/rhi/opengl/command-queue/get-timestamp-frequency.md

@@ -0,0 +1,19 @@
+# OpenGLCommandQueue::GetTimestampFrequency
+
+```cpp
+uint64_t GetTimestampFrequency() const
+```
+
+获取时间戳频率。
+
+**返回：** 时间戳频率（Hz）
+
+**示例：**
+
+```cpp
+uint64_t frequency = commandQueue->GetTimestampFrequency();
+```
+
+## 相关文档
+
+- [OpenGLCommandQueue](command-queue.md) - 返回类总览