Checks if the message is a dict before saving it to the genai analysi…

…s field in the case model (#5357)

src/dispatch/plugins/dispatch_slack/plugin.py

@@ -107,7 +107,9 @@ def create_threaded(self, case: Case, conversation_id: str, db_session: Session)
                     client=client,
                     config=self.configuration,
                 )
-                if message:
+                if message and isinstance(message, dict):
+                    # we update the genai_analysis field in the case model with the message if it's a dict
+                    # if the message is a string, it means there was an error generating the analysis
                     case.genai_analysis = message
 
                 if message_blocks: