fix: improve doc link navigation and tree display

- Fix link resolution with proper relative/absolute path handling
- Improve link styling with underline decoration
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- Fix log file path for packaged app

docs/api/math/matrix4/rotationz.md

@@ -0,0 +1,20 @@
+# Matrix4::RotationZ
+
+```cpp
+static Matrix4 RotationZ(float radians)
+```
+
+创建绕 Z 轴旋转的矩阵。
+
+**参数：**
+- `radians` - 旋转角度（弧度）
+
+**返回：** `Matrix4` - 旋转矩阵
+
+**复杂度：** O(1)
+
+**示例：**
+
+```cpp
+Matrix4 rotZ = Matrix4::RotationZ(Math::HALF_PI);
+```