fix: bug on map zoom

frontend/src/components/FlexPanel.tsx

@@ -187,7 +187,9 @@ function Card({ icon: Icon, title, accent, children }: { icon: any; title: strin
   );
 }
 
-export function FlexPanel() {
+// onCWSpeed (optional): notified when the operator changes CW speed here, so the
+// host can keep the WinKeyer (which actually sends the macros) in sync.
+export function FlexPanel({ onCWSpeed }: { onCWSpeed?: (wpm: number) => void } = {}) {
   const [st, setSt] = useState<FlexState>(ZERO);
   const hold = useRef<Record<string, number>>({});
   // Peak-hold: keep the highest reading for ~2 s so the jittery VITA-49 meters
@@ -355,7 +357,7 @@ export function FlexPanel() {
             <div className="border-t border-border/60 pt-3 space-y-3">
               <div className="flex items-center gap-2">
                 <span className="w-16 shrink-0 text-[11px] font-bold text-muted-foreground">Speed</span>
-                <Slider value={st.cw_speed} disabled={off} max={60} accent="#0d9488" onChange={(v) => change('cw_speed', v, () => FlexSetCWSpeed(v))} />
+                <Slider value={st.cw_speed} disabled={off} max={60} accent="#0d9488" onChange={(v) => { change('cw_speed', v, () => FlexSetCWSpeed(v)); onCWSpeed?.(v); }} />
                 <span className="w-12 text-right text-xs font-mono tabular-nums text-muted-foreground">{st.cw_speed} wpm</span>
               </div>
               <div className="flex items-center gap-2">