panel: install commands no longer append --probe-only

Probe-only is governed solely by the master-side flag so unchecking it
in the panel takes effect on its own; an agent.json preset would pin
it via the dual-source OR gate. The install-agent.sh/ps1 --probe-only
flag stays for manual installs. tsc --noEmit clean.

frontend/src/pages/nodes/NodeFormModal.tsx

@@ -84,9 +84,6 @@ export default function NodeFormModal({
   const [testResult, setTestResult] = useState<ProbeResult | null>(null);
   const [agentToken, setAgentToken] = useState<string | null>(null);
   const [agentNodeName, setAgentNodeName] = useState('');
-  // Whether the just-created agent node was flagged probe-only, so the
-  // install command below can carry the matching --probe-only flag.
-  const [agentProbeOnly, setAgentProbeOnly] = useState(false);
   const [agentMasterUrl, setAgentMasterUrl] = useState('');
   // Edit mode (item 19): the stored install material for an existing agent
   // node, fetched from the master; null until loaded / for non-agent nodes.
@@ -104,7 +101,6 @@ export default function NodeFormModal({
   const inboundSyncMode = useWatch({ control: methods.control, name: 'inboundSyncMode' }) ?? 'all';
   const nodeType = useWatch({ control: methods.control, name: 'nodeType' }) ?? 'traditional';
   const isAgent = nodeType === 'agent';
-  const probeOnly = useWatch({ control: methods.control, name: 'probeOnly' }) ?? false;
   const { data: outboundGroups } = useOutboundTagGroups({ excludeBlackhole: true });
 
   // Outbounds and balancers share one picker (like the panel-outbound selector);
@@ -186,10 +182,13 @@ export default function NodeFormModal({
     const cmd = shownInstall.hasToken
       ? `${base} --token ${shownInstall.token} --name ${shownInstall.name}`
       : `${base} --name ${shownInstall.name}`;
-    // The toggle is the source of truth for the re-displayed command:
-    // flipping it rewrites the command the operator would re-run.
-    return probeOnly ? `${cmd} --probe-only` : cmd;
-  }, [shownInstall, editMasterUrl, probeOnly]);
+    // The command never carries --probe-only: an agent.json preset would
+    // pin probe-only on the machine (dual-source OR gate) and the panel
+    // toggle alone could no longer turn it off. Probe-only is governed
+    // solely by the master-side flag; the script flag stays for manual
+    // installs that deliberately want the preset.
+    return cmd;
+  }, [shownInstall, editMasterUrl]);
 
   const title = useMemo(
     () => (mode === 'edit' ? t('pages.nodes.editNode') : t('pages.nodes.addNode')),
@@ -307,7 +306,6 @@ export default function NodeFormModal({
         if (agentMode && mode === 'add' && obj?.agentToken) {
           setAgentToken(obj.agentToken);
           setAgentNodeName(result.data.name.trim());
-          setAgentProbeOnly(result.data.probeOnly ?? false);
           // Default the master URL to the address this panel is being
           // viewed through — origin AND base path. Dropping the base
           // path made the agent's registration 404. User can edit it.
@@ -330,7 +328,7 @@ export default function NodeFormModal({
   // one would produce a command that can never register, so withhold it
   // (and say why) instead of letting the user copy a dead command.
   const installCmd = agentMasterUrl
-    ? `bash <(curl -fL https://git.881218.xyz/rogue/3x-ui-agent/raw/branch/main/install-agent.sh) --master ${agentMasterUrl} --token ${agentToken ?? ''} --name ${agentNodeName}${agentProbeOnly ? ' --probe-only' : ''}`
+    ? `bash <(curl -fL https://git.881218.xyz/rogue/3x-ui-agent/raw/branch/main/install-agent.sh) --master ${agentMasterUrl} --token ${agentToken ?? ''} --name ${agentNodeName}`
     : '';
 
   return (