Merge pull request #202 from bonk1t/fix/genesis-cli-type-error

Fix Genesis agent creator type error

agency_swarm/messages/message_output.py

@@ -161,7 +161,9 @@ def cprint_update(self, snapshot):
         """
         Update the display with new snapshot content.
         """
-        self.content = snapshot  # Update content with the latest snapshot
+        self.content = (
+            snapshot or "No content available"
+        )  # Update content with the latest snapshot
 
         header_text = self.formatted_header
         md_content = Markdown(self.content)