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/sampler/methods.md

@@ -0,0 +1,41 @@
+# RHISampler 方法
+
+## Shutdown
+
+```cpp
+virtual void Shutdown() = 0;
+```
+
+释放采样器资源。
+
+## Bind
+
+```cpp
+virtual void Bind(unsigned int unit) = 0;
+```
+
+绑定采样器到纹理单元。
+
+## Unbind
+
+```cpp
+virtual void Unbind(unsigned int unit) = 0;
+```
+
+解绑采样器。
+
+## GetNativeHandle
+
+```cpp
+virtual void* GetNativeHandle() = 0;
+```
+
+获取原生 API 句柄。
+
+## GetID
+
+```cpp
+virtual unsigned int GetID() = 0;
+```
+
+获取采样器 ID。