style(web/swarm): align Swarm pages with shared page-header primitive

decnet_web/src/components/AgentEnrollment.tsx

@@ -91,9 +91,14 @@ const AgentEnrollment: React.FC = () => {
   const ss = (remainingSecs % 60).toString().padStart(2, '0');
 
   return (
-    <div className="dashboard">
-      <div className="dashboard-header">
-        <h1><UserPlus size={28} /> Agent Enrollment</h1>
+    <div className="dashboard swarm-root">
+      <div className="page-header">
+        <div className="page-title-group">
+          <h1><UserPlus size={18} /> AGENT ENROLLMENT</h1>
+          <span className="page-sub">
+            issue a one-shot bootstrap URL for a new swarm worker
+          </span>
+        </div>
       </div>
 
       {!result ? (

decnet_web/src/components/RemoteUpdates.tsx

@@ -166,29 +166,21 @@ const RemoteUpdates: React.FC = () => {
   }
 
   return (
-    <div className="dashboard">
-      <div
-        className="section-header"
-        style={{
-          display: 'flex', justifyContent: 'space-between', alignItems: 'center',
-          border: '1px solid var(--border-color)', backgroundColor: 'var(--secondary-color)',
-          marginBottom: '24px',
-        }}
-      >
-        <div style={{ display: 'flex', alignItems: 'center', gap: '12px' }}>
-          <Package size={20} />
-          <h2 style={{ margin: 0 }}>REMOTE UPDATES — WORKER FLEET</h2>
+    <div className="dashboard swarm-root">
+      <div className="page-header">
+        <div className="page-title-group">
+          <h1><Package size={18} /> REMOTE UPDATES</h1>
+          <span className="page-sub">
+            push updater bundles to enrolled workers · {hosts.length} WORKER{hosts.length === 1 ? '' : 'S'}
+          </span>
         </div>
         <button
           onClick={() => setShowFleetModal(true)}
           disabled={fleetBusy || hosts.length === 0}
-          style={{
-            display: 'flex', alignItems: 'center', gap: '8px',
-            border: '1px solid var(--accent-color)', color: 'var(--accent-color)',
-          }}
+          className="control-btn primary"
         >
           {fleetBusy ? <RefreshCw size={14} className="spin" /> : <Upload size={14} />}
-          {fleetBusy ? 'PUSHING...' : 'PUSH TO ALL'}
+          {fleetBusy ? 'PUSHING…' : 'PUSH TO ALL'}
         </button>
       </div>
 

decnet_web/src/components/Swarm.css

@@ -1,16 +1,34 @@
-.dashboard-header {
+.swarm-root .page-header {
   display: flex;
-  align-items: center;
+  align-items: flex-end;
   justify-content: space-between;
+  gap: 24px;
+  padding-bottom: 16px;
   margin-bottom: 24px;
+  border-bottom: 1px solid var(--panel-border);
 }
 
-.dashboard-header h1 {
+.swarm-root .page-title-group {
+  display: flex;
+  flex-direction: column;
+  gap: 6px;
+}
+
+.swarm-root .page-header h1 {
   display: flex;
   align-items: center;
-  gap: 12px;
-  font-size: 1.4rem;
-  letter-spacing: 2px;
+  gap: 10px;
+  font-size: 1.3rem;
+  letter-spacing: 4px;
+  font-weight: 700;
+  margin: 0;
+  color: var(--matrix);
+}
+
+.swarm-root .page-sub {
+  font-size: 0.7rem;
+  opacity: 0.5;
+  letter-spacing: 1px;
 }
 
 .panel {

decnet_web/src/components/SwarmHosts.tsx

@@ -90,12 +90,19 @@ const SwarmHosts: React.FC = () => {
     }
   };
 
+  const online = hosts.filter((h) => h.status === 'online').length;
+
   return (
-    <div className="dashboard">
-      <div className="dashboard-header">
-        <h1><HardDrive size={28} /> SWARM Hosts</h1>
+    <div className="dashboard swarm-root">
+      <div className="page-header">
+        <div className="page-title-group">
+          <h1><HardDrive size={18} /> SWARM HOSTS</h1>
+          <span className="page-sub">
+            {loading ? 'LOADING…' : `${hosts.length} ENROLLED · ${online} ONLINE`}
+          </span>
+        </div>
         <button onClick={fetchHosts} className="control-btn" disabled={loading}>
-          <RefreshCw size={16} /> Refresh
+          <RefreshCw size={14} /> REFRESH
         </button>
       </div>