perf:del dify stream in ai.yaml config.and enbale stream in lark.yaml.

fix:localagent remove_think bug

templates/metadata/pipeline/ai.yaml

@@ -138,20 +138,7 @@ stages:
             label:
               en_US: Remove
               zh_Hans: 移除
-      - name: enable-streaming
-        label:
-          en_US: enable streaming mode
-          zh_Hans: 开启流式输出
-        type: boolean
-        required: true
-        default: false
-      - name: output-batch-size
-        label:
-          en_US: output batch size
-          zh_Hans: 输出批次大小(积累多少条消息后一起输出)
-        type: integer
-        required: true
-        default: 10
+
 
   - name: dashscope-app-api
     label: