fix: improve doc link navigation and tree display

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

docs/api/math/vector2/dot.md

@@ -0,0 +1,23 @@
+# Vector2::Dot
+
+```cpp
+static float Dot(const Vector2& a, const Vector2& b)
+```
+
+计算两个 2D 向量的点积。
+
+**参数：**
+- `a` - 第一个向量
+- `b` - 第二个向量
+
+**返回：** `float` - 点积结果 a.x * b.x + a.y * b.y
+
+**复杂度：** O(1)
+
+**示例：**
+
+```cpp
+Vector2 a(1.0f, 0.0f);
+Vector2 b(0.0f, 1.0f);
+float dot = Vector2::Dot(a, b);  // 0.0f
+```