feat(ui): add useP2PMode hook and embedded prop to Nodes and P2P pages

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

core/http/react-ui/src/hooks/useP2PMode.js

@@ -0,0 +1,31 @@
+import { useState, useEffect, useCallback } from 'react'
+import { p2pApi } from '../utils/api'
+
+// useP2PMode reports whether p2p / swarm mode is available, mirroring
+// useDistributedMode. Availability is "a network token exists" (the same signal
+// the standalone P2P page used). One-shot probe on mount plus a manual refetch.
+//
+// Returns:
+//   enabled  — true when a non-empty network token is present
+//   loading  — true until the first probe completes
+//   refetch  — manual trigger to re-run the probe
+export function useP2PMode() {
+  const [enabled, setEnabled] = useState(false)
+  const [loading, setLoading] = useState(true)
+
+  const probe = useCallback(async () => {
+    setLoading(true)
+    try {
+      const token = await p2pApi.getToken()
+      setEnabled(!!(token && String(token).trim()))
+    } catch {
+      setEnabled(false)
+    } finally {
+      setLoading(false)
+    }
+  }, [])
+
+  useEffect(() => { probe() }, [probe])
+
+  return { enabled, loading, refetch: probe }
+}

core/http/react-ui/src/pages/Nodes.jsx

@@ -107,7 +107,7 @@ function WorkerHintCard({ addToast, activeTab, hasWorkers }) {
   )
 }
 
-export default function Nodes() {
+export default function Nodes({ embedded = false }) {
   const { addToast } = useOutletContext()
   const { t } = useTranslation('admin')
   const [nodesList, setNodesList] = useState([])
@@ -309,16 +309,18 @@ export default function Nodes() {
     : activeTab === 'agent' ? agentNodes : backendNodes
 
   return (
-    <div className="page page--wide">
-      <PageHeader
-        title={
-          <>
-            <i className="fas fa-network-wired" style={{ marginRight: 'var(--spacing-sm)' }} />
-            {t('nodes.title')}
-          </>
-        }
-        supporting={t('nodes.subtitle')}
-      />
+    <div className={embedded ? '' : 'page page--wide'}>
+      {!embedded && (
+        <PageHeader
+          title={
+            <>
+              <i className="fas fa-network-wired" style={{ marginRight: 'var(--spacing-sm)' }} />
+              {t('nodes.title')}
+            </>
+          }
+          supporting={t('nodes.subtitle')}
+        />
+      )}
 
       <ClusterPulse nodes={nodesList} />
       <AttentionCallout nodes={nodesList} onApprove={handleApprove} />

core/http/react-ui/src/pages/P2P.jsx

@@ -103,7 +103,7 @@ function StepNumber({ n, bg, color }) {
   )
 }
 
-export default function P2P() {
+export default function P2P({ embedded = false }) {
   const { addToast } = useOutletContext()
   const { t } = useTranslation('admin')
   const [workers, setWorkers] = useState([])
@@ -173,7 +173,7 @@ export default function P2P() {
 
   if (loading) {
     return (
-      <div className="page page--narrow" style={{ display: 'flex', justifyContent: 'center', padding: 'var(--spacing-xl)' }}>
+      <div className={embedded ? '' : 'page page--narrow'} style={{ display: 'flex', justifyContent: 'center', padding: 'var(--spacing-xl)' }}>
         <LoadingSpinner size="lg" />
       </div>
     )
@@ -182,7 +182,7 @@ export default function P2P() {
   // ── P2P Disabled ──
   if (!enabled) {
     return (
-      <div className="page page--narrow">
+      <div className={embedded ? '' : 'page page--narrow'}>
         <div style={{ textAlign: 'center', padding: 'var(--spacing-xl) 0' }}>
           <i className="fas fa-network-wired" style={{ fontSize: '3rem', color: 'var(--color-primary)', marginBottom: 'var(--spacing-md)' }} />
           <h1 style={{ fontSize: '1.5rem', fontWeight: 600, marginBottom: 'var(--spacing-sm)' }}>
@@ -295,25 +295,27 @@ export default function P2P() {
   const mlxTotal = stats.mlx_workers?.total ?? 0
 
   return (
-    <div className="page page--narrow">
-      <PageHeader
-        title={
-          <>
-            <i className="fas fa-circle-nodes" style={{ marginRight: 'var(--spacing-sm)' }} />
-            {t('p2p.title')}
-          </>
-        }
-        supporting={
-          <>
-            {t('p2p.subtitle')}
-            {' '}
-            <a href="https://localai.io/features/distribute/" target="_blank" rel="noopener noreferrer"
-              style={{ color: 'var(--color-primary)' }}>
-              <i className="fas fa-circle-info" />
-            </a>
-          </>
-        }
-      />
+    <div className={embedded ? '' : 'page page--narrow'}>
+      {!embedded && (
+        <PageHeader
+          title={
+            <>
+              <i className="fas fa-circle-nodes" style={{ marginRight: 'var(--spacing-sm)' }} />
+              {t('p2p.title')}
+            </>
+          }
+          supporting={
+            <>
+              {t('p2p.subtitle')}
+              {' '}
+              <a href="https://localai.io/features/distribute/" target="_blank" rel="noopener noreferrer"
+                style={{ color: 'var(--color-primary)' }}>
+                <i className="fas fa-circle-info" />
+              </a>
+            </>
+          }
+        />
+      )}
 
       {/* Network Token */}
       <div style={{