cristhian
04f0d57068
Two sources want one arm and the arm cannot take both. Putting the decision in one place means there is exactly one answer to "why did it not move" rather than one answer per input path. The model is ported from the monolithic repo's RobotService lease rather than replaced with last-writer-wins, because the console is already built on it: its jog pad is gated on owning the arm and it draws an owner chip. A simpler scheme would mean rewriting the page to match the node instead of the other way round. The gamepad takes the arm implicitly, on the first nudge of a stick, so nobody has to reach for a browser to use the thing in their hands — and gives it back after sitting untouched, so a pad left on the bench cannot lock the browser out forever. The web takes and releases explicitly, and may preempt: an operator who can see the arm is better placed than this code to decide they should have it.