Devices: fixes from review round 20

- A jump host's own "Authenticated to" line no longer counts as the headset's,
  and a master that logs in but doesn't start lets the next address be tried.
- Devices tab changes refresh through the ordered list load, so a late answer
  can't undo a newer selection.
- A probe's time out starts after the name lookup: macOS can take 5 s to look
  up a .local name (found on the real Frame once its USB link went away).
- An attempt's ending is published from a method, not a return in finally.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

ui/index.html

@@ -2684,7 +2684,7 @@ async function useDevice(id) {
 }
 async function devAction(label, body, btn) {
   const res = await act(label, () => api("/api/devices", body), btn);
-  if (res && res.devices) { dv.data = res; dv.list = res.devices; renderDevices(); }
+  if (res) loadDevices();  // in order with every other load, so a late answer can't undo a newer one
   return res;
 }