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/texture/generatemipmaps.md

@@ -0,0 +1,24 @@
+# Texture::GenerateMipmaps
+
+```cpp
+bool GenerateMipmaps()
+```
+
+生成纹理的 Mipmap 链。根据基础级别纹理自动生成所有下采样级别，用于纹理在缩小渲染时避免闪烁。
+
+**参数：** 无
+
+**返回：** 生成成功返回 true
+
+**复杂度：** O(n)
+
+**示例：**
+
+```cpp
+tex.Create(1024, 1024, 1, 1, TextureType::Texture2D, TextureFormat::RGBA8_UNORM, data, size);
+tex.GenerateMipmaps();
+```
+
+## 相关文档
+
+- [Texture 总览](texture.md) - 返回类总览