Fix VehicleCreator not receiving keyboard input

[Copilot]

Keyboard events for vehicle controls (WASD, Space, Enter) never reached VehicleEditorController.onAction() because SceneViewerTopComponent forwards AWT key events only to the active camera controller's onKeyEvent(), bypassing the jME3 InputManager entirely.

Changes

• VehicleCreatorCameraController: Override onKeyEvent() to forward key events to VehicleEditorController, following the pattern used by ComposerCameraController
• VehicleEditorController: Add onKeyEvent() that translates key codes to action bindings and delegates to onAction()
• VehicleCreatorTopComponent: Wire up the editor controller reference to the camera controller

// VehicleCreatorCameraController.java
@Override
public void onKeyEvent(KeyInputEvent kie) {
    super.onKeyEvent(kie);
    if (editorController != null) {
        editorController.onKeyEvent(kie);
    }
}

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Original prompt

---

This section details on the original issue you should resolve

<issue_title>VehicleCreator not receiving input</issue_title>
<issue_description>For some reasons the inputs don't reach the onAction method.
I've tried adding it as a RawInputListener.
Events are emitted, as I've seen them in debug in the camera class (which is also a RawInputListener)
There I can see that the VehicleEditorController is indeed in the list.

Why would events come to the camera, but not the VehicleEditorController?

The only reason I can see is if the event is consumed, somehow. But why? And who?</issue_description>

<agent_instructions>This is going to be really difficult to debug without running the actual build, but give it a try. Analyze why events don't reach VehicleEditorController, but obviously are emitted since the camera gets them. The sub project is: https://github.com/jMonkeyEngine/sdk/tree/master/jme3-vehicle-creator
</agent_instructions>

Comments on the Issue (you are @copilot in this section)

• Fixes VehicleCreator not receiving input #581

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