Add layout for agent pages with dark background

app/mission-control/agent/[id]/page.tsx

@@ -155,7 +155,7 @@ export default function AgentCenterPage({ params }: { params: { id: string } })
   }
 
   return (
-    <div className="min-h-screen bg-gradient-to-br from-[#1a1a2e] to-[#16213e] p-4 md:p-6">
+    <div className="p-4 md:p-6">
       {/* Header */}
       <div className="flex items-center gap-4 mb-6">
         <button

app/mission-control/agent/layout.tsx

@@ -0,0 +1,7 @@
+export default function AgentLayout({ children }: { children: React.ReactNode }) {
+  return (
+    <div className="min-h-screen bg-gradient-to-br from-[#1a1a2e] to-[#16213e]">
+      {children}
+    </div>
+  );
+}