fix(cw): Icom CI-V CW works over the network backend too

The CI-V keyer is the same 0x17 command on the same IcomController whatever
carries the link; only the warnings and enable checks insisted on the USB
backend, telling a network operator their working keyer would fail.

frontend/src/App.tsx

@@ -1532,7 +1532,7 @@ export default function App() {
   // Seed the current break-in from the rig when the CW panel becomes active in
   // Icom mode (so the control reflects the radio's real state).
   useEffect(() => {
-    if (cwSource !== 'icom' || !wkEnabled || !(catState.backend === 'icom' && catState.connected)) return;
+    if (cwSource !== 'icom' || !wkEnabled || !((catState.backend === 'icom' || catState.backend === 'icom-net') && catState.connected)) return;
     GetIcomState().then((s: any) => { if (s && typeof s.break_in === 'number') setIcomBreakIn(s.break_in); }).catch(() => {});
   }, [cwSource, wkEnabled, catState.backend, catState.connected]);
   // Auto-call: repeat the clicked macro (e.g. F1 CQ) every (message + N seconds)
@@ -1556,7 +1556,7 @@ export default function App() {
   // skips the log that hasn't happened yet.
   const wkSendGenRef = useRef(0);
   useEffect(() => {
-    const connected = cwSource === 'icom' ? (catState.backend === 'icom' && catState.connected)
+    const connected = cwSource === 'icom' ? ((catState.backend === 'icom' || catState.backend === 'icom-net') && catState.connected)
       : cwSource === 'flex' ? (catState.backend === 'flex' && catState.connected)
       : cwSource === 'yaesu' ? (catState.backend === 'yaesu' && catState.connected)
       : cwSource === 'kenwood' ? (catState.backend === 'kenwood' && catState.connected)

frontend/src/components/SettingsModal.tsx

@@ -4893,7 +4893,7 @@ function SettingsModalImpl({ onClose, onSaved, initialSection, onMainPaneChanged
 
           {wk.engine === 'icom' ? (
             <>
-              {(!catCfg.enabled || catCfg.backend !== 'icom') && (
+              {(!catCfg.enabled || (catCfg.backend !== 'icom' && catCfg.backend !== 'icom-net')) && (
                 <p className="text-xs font-medium text-warning -mt-1 flex items-start gap-1.5">
                   <span aria-hidden>⚠</span>
                   <span>{t('wk.catWarnIcom', { backend: catCfg.enabled ? (catCfg.backend || 'none') : 'disabled' })}</span>