feat: add note for remove_think & remove dify remove cot code

templates/metadata/pipeline/ai.yaml

@@ -118,28 +118,6 @@ stages:
           zh_Hans: API 密钥
         type: string
         required: true
-      - name: thinking-convert
-        label:
-          en_US: CoT Convert
-          zh_Hans: 思维链转换策略
-        type: select
-        required: true
-        default: plain
-        options:
-          - name: plain
-            label:
-              en_US: Convert to <think>...</think>
-              zh_Hans: 转换成 <think>...</think>
-          - name: original
-            label:
-              en_US: Original
-              zh_Hans: 原始
-          - name: remove
-            label:
-              en_US: Remove
-              zh_Hans: 移除
-
-
   - name: dashscope-app-api
     label:
       en_US: Aliyun Dashscope App API

templates/metadata/pipeline/output.yaml

@@ -110,8 +110,8 @@ stages:
           en_US: Remove CoT
           zh_Hans: 删除思维链
         description:
-          en_US: If enabled, LangBot will remove the LLM thought content in response
-          zh_Hans: 如果启用，将自动删除大模型回复中的模型思考内容
+          en_US: 'If enabled, LangBot will remove the LLM thought content in response. Note: When using streaming response, removing CoT may cause the first token to wait for a long time.'
+          zh_Hans: '如果启用，将自动删除大模型回复中的模型思考内容。注意：当您使用流式响应时，删除思维链可能会导致首个 Token 的等待时间过长'
         type: boolean
         required: true
-        default: true
+        default: false