feat: implement branded splash screen loading states for user and agent layouts

src/app/(user)/layout.tsx

@@ -3,6 +3,7 @@
 import { useSession } from 'next-auth/react';
 import { useRouter, usePathname } from 'next/navigation';
 import { useEffect } from 'react';
+import Image from 'next/image';
 import { Footer } from '@/components/layout/Footer';
 import { CommonHeader } from '@/components/layout/CommonHeader';
 import { PresenceProvider } from '@/components/providers/presence-provider';
@@ -58,22 +59,29 @@ export default function UserLayout({
     }
   }, [session, status, router, pathname, isPublic]);
 
+  const splashLoading = (
+    <div
+      className="min-h-screen flex flex-col items-center justify-center"
+      style={{ background: 'linear-gradient(to bottom, #c4d9d4, #f0f5fc)' }}
+    >
+      <Image src="/assets/images/splash-house.png" alt="" width={150} height={108} priority />
+      <div className="mt-[35px]">
+        <Image src="/assets/images/splash-logo.png" alt="RE-Quest" width={264} height={55} priority />
+      </div>
+      <div className="mt-8">
+        <div className="animate-spin rounded-full h-8 w-8 border-b-2 border-[#00293d]" />
+      </div>
+    </div>
+  );
+
   // Show loading only for protected pages while checking auth
   if (status === 'loading' && !isPublic) {
-    return (
-      <div className="min-h-screen bg-white flex items-center justify-center">
-        <div className="animate-spin rounded-full h-8 w-8 border-b-2 border-[#00293d]"></div>
-      </div>
-    );
+    return splashLoading;
   }
 
   // Redirect protected pages if not logged in
   if (!session && !isPublic) {
-    return (
-      <div className="min-h-screen bg-white flex items-center justify-center">
-        <div className="animate-spin rounded-full h-8 w-8 border-b-2 border-[#00293d]"></div>
-      </div>
-    );
+    return splashLoading;
   }
 
   return (