feat(federation): inbound peer requests live on the map — blinking nodes + accept/reject

- Inbound pending requests render as blinking yellow point-globes on an
  orbit outside the peers, dotted-linked to self, with their own dashed
  guide ring and a Request legend chip.
- Tapping one opens a black-glass popover (name, request message,
  Accept/Reject) centred over the scene; tap-away or ✕ dismisses.
- Reject: the node swells and pops out of existence, taking its link.
- Accept: green burst ring, the point cloud/link morph to the trusted
  colour and the globe glides inward onto the peer orbit, then the data
  refresh replaces it with the real peer node.
- Wired to the same approve/reject RPCs as the pending panel; new
  motionTokens.color.pending (#facc15) token.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

neode-ui/src/utils/motion.ts

@@ -22,6 +22,8 @@ export const motionTokens = {
     observer: '#fb923c',
     untrusted: '#ef4444',
     neutral: '#9ca3af',
+    /** Pending/attention — inbound peer requests awaiting a decision. */
+    pending: '#facc15',
     /** Text/line opacities on the dark glass ground. */
     textPrimary: 'rgba(255, 255, 255, 0.95)',
     textSecondary: 'rgba(255, 255, 255, 0.7)',