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/rect/set.md

@@ -0,0 +1,24 @@
+# Rect::Set
+
+```cpp
+void Set(float newX, float newY, float newWidth, float newHeight)
+```
+
+设置矩形所有属性。
+
+**参数：**
+- `newX` - 新的左边界
+- `newY` - 新的上边界
+- `newWidth` - 新的宽度
+- `newHeight` - 新的高度
+
+**返回：** `void`
+
+**复杂度：** O(1)
+
+**示例：**
+
+```cpp
+Rect rect;
+rect.Set(10.0f, 20.0f, 100.0f, 50.0f);
+```