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/math/transform/inversetransformdirection.md

@@ -0,0 +1,21 @@
+# Transform::InverseTransformDirection
+
+```cpp
+Vector3 InverseTransformDirection(const Vector3& direction) const
+```
+
+对方向进行逆变换（包含缩放处理）。
+
+**参数：**
+- `direction` - 世界空间中的方向
+
+**返回：** `Vector3` - 局部空间中的方向
+
+**复杂度：** O(1)
+
+**示例：**
+
+```cpp
+Transform t;
+Vector3 localDir = t.InverseTransformDirection(worldDir);
+```