>>> [!note] Migrated issue <!-- Drupal.org comment --> <!-- Migrated from issue #3538878. --> Reported by: [d34dman](https://www.drupal.org/user/751698) >>> <ul> <li>Implement visual handles on nodes for input/output ports.</li> <li>Allow users to click-and-drag from an output port to an input port to create a connection.</li> <li>Maintain an in-memory graph of nodes and edges for editor state management.</li> <li>Visually render edges as SVG paths with directional arrows.</li> </ul>