feat: sync the host CW keyer speed (wkWpm) to the FlexRadio's actual CW speed — including changes made on the radio/SmartSDR, not just the panel slider — so CW-length estimates (auto-call gap) match reality when using Flex CWX

frontend/src/components/FlexPanel.tsx

@@ -288,6 +288,18 @@ export function FlexPanel({ onCWSpeed, onReportRST }: { onCWSpeed?: (wpm: number
   const { t } = useI18n();
   const [st, setSt] = useState<FlexState>(ZERO);
   const hold = useRef<Record<string, number>>({});
+  // Keep the host's keyer speed (used for CW-length estimates and the keyer panel)
+  // in step with the radio's ACTUAL CW speed — including when it's changed on the
+  // radio / in SmartSDR, not just via the slider below. Notify only on a real change.
+  const lastCwSpeed = useRef<number | null>(null);
+  useEffect(() => {
+    const w = st.cw_speed;
+    if (typeof w === 'number' && w > 0 && w !== lastCwSpeed.current) {
+      lastCwSpeed.current = w;
+      onCWSpeed?.(w);
+    }
+    // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, [st.cw_speed]);
   // Peak-hold: keep the highest reading for ~2 s so the jittery VITA-49 meters
   // read steadily instead of jumping every poll.
   const peak = useRef<Record<string, { v: number; t: number }>>({});