Docs: update langbot images

en/learn-more/use-cases/connect-dify-to-various-im-platforms-by-using-langbot.mdx

@@ -25,13 +25,13 @@ Refer to [this page](https://docs.langbot.app/en/deploy/platforms/readme.html) t
 LangBot uses `Pipelines` to control message processing. When first started, LangBot automatically creates a default pipeline. Go to the pipeline configuration page and click to open the pipeline configuration.  
 Select the `AI` tab and switch the runner to `Dify Service API`.
 
-![](edit_runner_in_pipeline_config)
+![](https://assets-docs.dify.ai/2025/05/216b4607dd3dd7702a43fed190e016f4.png)
 
 Fill in your Dify service's API endpoint address, Dify application type, and API Key. After completion, you can chat with the bot in your instant messaging software.
 
 When using workflow applications, please use `summary` as the key to return workflow execution results.
 
-![](summary_var)
+![](https://assets-docs.dify.ai/2025/05/5ca053769ccf6b39cc916916c06b4368.png)
 
 When using workflows, LangBot will explicitly pass the following parameters, which you can add in the start node of your Dify workflow:
 
@@ -42,7 +42,7 @@ When using workflows, LangBot will explicitly pass the following parameters, whi
 
 You can [customize any variables through plugins](https://docs.langbot.app/en/plugin/dev/api-ref.html)
 
-![](input_var)
+![](https://assets-docs.dify.ai/2025/05/28522dd204fee0553943ae1e0bba9bb6.png)
 
 - For detailed instructions, please refer to the LangBot documentation
 
@@ -50,9 +50,9 @@ You can [customize any variables through plugins](https://docs.langbot.app/en/pl
 
 > Below shows Discord and Slack examples only. Other platforms like Lark, DingTalk, Telegram can also be integrated
 
-![](discord_demo)
+![](https://assets-docs.dify.ai/2025/05/2014d463b6d44446422ac7e23483212a.png)
 
-![](slack_demo)
+![](https://assets-docs.dify.ai/2025/05/3317a7a3f29798cc18bfb5037a7eec07.png)
 
 {/*
 Contributing Section