feat(zigbee): populate IEEE/Vendor/Model/LQI properties on approve and re-import

- Approval (single + bulk) of zigbee pending devices now writes IEEE, Vendor,
  Model, LQI into Node.properties so they show in the right panel.
- Zigbee re-import refreshes properties on existing canvas Nodes and skips
  creating a pending row when the device was already approved — keeps
  approved devices out of pending/hidden modals.
- Coordinator Node also receives the same properties on first creation and
  on re-import.
- Remove the Parent Container selector from the add/edit node modal.

frontend/src/App.tsx

@@ -552,9 +552,6 @@ export default function App() {
           onClose={() => setAddNodeOpen(false)}
           onSubmit={handleAddNode}
           title="Add Node"
-          parentContainerNodes={nodes
-            .filter((n) => CONTAINER_MODE_TYPES.has(n.data.type) && n.data.container_mode)
-            .map((n) => ({ id: n.id, label: n.data.label, nodeType: n.data.type }))}
         />
 
         {/* key forces re-mount when editing a different node, resetting form state */}
@@ -565,9 +562,6 @@ export default function App() {
           onSubmit={handleUpdateNode}
           initial={editNode?.data}
           title="Edit Node"
-          parentContainerNodes={nodes
-            .filter((n) => n.id !== editNodeId && CONTAINER_MODE_TYPES.has(n.data.type) && n.data.container_mode)
-            .map((n) => ({ id: n.id, label: n.data.label, nodeType: n.data.type }))}
         />
 
         <EdgeModal