Refactor: Add button feedback

src/pages/admin/ErrorLookup.tsx

@@ -83,7 +83,12 @@ export default function ErrorLookup() {
                 onKeyDown={(e) => e.key === 'Enter' && handleSearch()}
                 className="font-mono"
               />
-              <Button onClick={handleSearch} disabled={loading}>
+              <Button 
+                onClick={handleSearch} 
+                loading={loading}
+                loadingText="Searching..."
+                trackingLabel="error-lookup-search"
+              >
                 <Search className="w-4 h-4 mr-2" />
                 Search
               </Button>