feat(ui): mesh Refresh/Broadcast feedback, Set Recommended modal with probe progress bar, live list refresh

- Refresh button: real handler — calls the new mesh.refresh (radio
  re-query) plus contacts/federation/outbox re-reads, disabled with a
  spinner while running (was an unawaited cache repaint with no feedback
  that skipped half the list's data sources).
- Broadcast button: success ('Sent ✓') and failure states with the error
  in the tooltip; failures no longer vanish as unhandled rejections.
- The store's 5s status poll no longer wipes the error banner each tick.
- Contacts/aliases, federation nodes and the outbox badge refresh every
  ~30s (were mount-only and went permanently stale).
- Peer-list empty state keys on the merged list, so federation rows and
  the channel rows still render with no radio attached.
- Device setup modal: 'Set Recommended' naming, probe progress bar with
  stage labels instead of an anonymous spinner.
- Device panel: name save clears properly (empty = fall back to server
  name) and the confirmation reflects the new live apply.

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

neode-ui/src/views/mesh/mesh-styles.css

@@ -83,6 +83,19 @@
 .mesh-offgrid-active { border-color: rgba(251, 146, 60, 0.4) !important; color: #fb923c !important; }
 .mesh-actions { display: flex; gap: 8px; flex-shrink: 0; }
 .mesh-action-btn { flex: 1; padding: 8px 0; font-size: 0.8rem; }
+.mesh-action-ok { color: #34d399; border-color: rgba(52, 211, 153, 0.4); }
+.mesh-refresh-spinner {
+  display: inline-block;
+  width: 10px;
+  height: 10px;
+  margin-right: 4px;
+  border-radius: 9999px;
+  border: 2px solid rgba(251, 146, 60, 0.7);
+  border-top-color: transparent;
+  animation: mesh-refresh-spin 0.8s linear infinite;
+  vertical-align: -1px;
+}
+@keyframes mesh-refresh-spin { to { transform: rotate(360deg); } }
 .mesh-peers-card { padding: 14px; flex: 1; min-height: 0; display: flex; flex-direction: column; }
 .mesh-peers-card .mesh-section-title { margin-bottom: 10px; flex-shrink: 0; }
 .mesh-peer-list { display: flex; flex-direction: column; gap: 4px; overflow-y: auto; flex: 1; min-height: 0; }