debug: add ray logging to trace S3DownloadFinished event flow

Add debugging to understand why the download message stays visible after completion.
This will help us see if:
1. The event is being dispatched by ActivityMonitor
2. The event is being received by Import component
3. The property is being set to false
4. The entangle is syncing to Alpine properly

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

app/Livewire/Project/Database/Import.php

@@ -80,7 +80,9 @@ class Import extends Component
 
     public function handleS3DownloadFinished(): void
     {
+        ray('S3DownloadFinished event received!');
         $this->s3DownloadInProgress = false;
+        ray('s3DownloadInProgress set to false', $this->s3DownloadInProgress);
     }
 
     public function mount()