🧭 Support automatic connector selection: autoX, autoY, and auto for connectable sides

[R3zu3]

• "autoX" determines the closest horizontal connection side by considering both the position and the width of each element (fNodeInput and fNodeOutput).
• "autoY" determines the closest vertical connection side by considering both the position and the height of each element (fNodeInput and fNodeOutput).
• "auto" selects the best connection side automatically, taking into account both horizontal (autoX) and vertical (autoY) proximity based on the position and dimensions of the elements.

This allows connections to be dynamically positioned for optimal alignment.

[siarheihuzarevich]

Hi! This is a great idea — thank you for explaining it in detail 🙌
Automatic side detection (autoX, autoY, and auto) would definitely be a useful and intuitive enhancement. I plan to implement this feature in a future release.

If you have more ideas regarding its behavior or API, feel free to share — it’s very helpful!