Imporve /open command: detetive target before open.

src/component/agent_manager/agent_manager.py

@@ -48,6 +48,12 @@ class AgentManager:
         pass
         
     
+    async def is_exist(self,agent_id:str) -> bool:
+        the_aget = await self.get(agent_id)
+        if the_aget:
+            return True
+        return False
+
     async def get(self,agent_id:str) -> AIAgent:
         the_agent = self.loaded_agent_instance.get(agent_id)
         if the_agent:

src/component/workflow_manager/workflow_manager.py

@@ -57,7 +57,13 @@ class WorkflowManager:
             if await self._load_workflow_agents(sub_workflow) is False:
                 return False
         return True
-
+    
+    async def is_exist(self,workflow_id:str) -> bool:
+        the_workflow = await self.get_workflow(workflow_id)
+        if the_workflow:
+            return True
+        return False
+    
     async def get_workflow(self,workflow_id:str) -> Workflow:
         the_workflow : Workflow = self.loaded_workflow.get(workflow_id)
         if the_workflow: