Add campaign output to campaign_stats command when campaign_id is provided

- Add output call to display campaign data when specific campaign_id is found
- Add early return after outputting campaign to prevent further processing

cli/commands/monitor.py

@@ -469,6 +469,8 @@ def campaign_stats(ctx, campaign_id: Optional[str]):
         if not campaign:
             error(f"Campaign '{campaign_id}' not found")
             ctx.exit(1)
+        output(campaign, ctx.obj['output_format'])
+        return
 
 
 @monitor.command()