RadioPanel, lifted from ContextView, renders the layer state, Enable, the tag filter, station card, transport, volume and playback line from the gev-radio store that RadioControls publishes to. The tuner, the local SDR card and the Cockpit radio controls keep their element bindings. Enable's busy mark and the dragged volume go through the owner so a render never leaves them stale, and the markup's tag option stands until the categories first change. ./ui/radio now imports Vue and Pinia.