style: integrate new logo and update theme to deep navy

src/components/TopBar.tsx

@@ -12,10 +12,13 @@ interface TopBarProps {
 
 export function TopBar({ stats, onExport, hasData, hasUnsavedChanges, userEmail, onSignOut }: TopBarProps) {
   return (
-    <header className="bg-slate-800 border-b border-slate-700 h-16 flex items-center justify-between px-6 shrink-0 z-10">
-      <div className="flex items-center gap-3">
-        <Database className="text-blue-500 w-6 h-6" />
-        <h1 className="text-xl font-bold text-white tracking-tight">CRAZE Product Data Quality Manager</h1>
+    <header className="bg-[#020812] border-b border-slate-700/30 h-16 flex items-center justify-between px-6 shrink-0 z-10 shadow-2xl">
+      <div className="flex items-center">
+        <img 
+          src="/assets/logo.png" 
+          alt="DataCraze" 
+          className="h-10 w-auto object-contain"
+        />
       </div>
 
       {stats && (