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/frustum/contains-point.md

@@ -0,0 +1,24 @@
+# Frustum::Contains (point)
+
+```cpp
+bool Contains(const Vector3& point) const
+```
+
+检测点是否在视锥体内。
+
+**参数：**
+- `point` - 要检测的世界空间点
+
+**返回：** `bool` - 点在视锥内返回 true
+
+**复杂度：** O(1)
+
+**示例：**
+
+```cpp
+Frustum frustum = camera.CalculateFrustum();
+Vector3 point = object.GetPosition();
+if (frustum.Contains(point)) {
+    // 点在视锥内
+}
+```