fix: improve doc link navigation and tree display

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docs/api/math/quaternion/dot.md

@@ -0,0 +1,20 @@
+# Quaternion::Dot
+
+```cpp
+float Dot(const Quaternion& other) const
+```
+
+计算两个四元数的点积。
+
+**参数：**
+- `other` - 另一个四元数
+
+**返回：** `float` - 点积结果
+
+**复杂度：** O(1)
+
+**示例：**
+
+```cpp
+float dot = quat1.Dot(quat2);
+```