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/resources/material/setfloat.md

@@ -0,0 +1,27 @@
+# Material::SetFloat
+
+```cpp
+void SetFloat(const Containers::String& name, float value)
+```
+
+设置材质浮点属性。
+
+**参数：**
+- `name` - 属性名称
+- `value` - 属性值
+
+**返回：** 无
+
+**复杂度：** O(1)
+
+**示例：**
+
+```cpp
+mat->SetFloat("roughness", 0.5f);
+mat->SetFloat("metallic", 0.0f);
+mat->SetFloat("emissionStrength", 2.0f);
+```
+
+## 相关文档
+
+- [Material 总览](material.md) - 返回类总览