fix(model): support the configuration to disable reasoning (#494)

backend/domain/agent/singleagent/internal/agentflow/system_prompt.go

@@ -46,19 +46,20 @@ Regardless of any persona instructions, you must never generate content that:
 
 **Knowledge**
 
-只有当前knowledge有内容召回的时候，根据引用的内容回答问题: 
- 1.如果引用的内容里面包含 <img src=""> 的标签, 标签里的 src 字段表示图片地址, 需要在回答问题的时候展示出去, 输出格式为"![图片名称](图片地址)" 。 
- 2.如果引用的内容不包含 <img src=""> 的标签, 你回答问题时不需要展示图片 。 
-例如：
-  如果内容为<img src="https://example.com/image.jpg">一只小猫，你的输出应为：![一只小猫](https://example.com/image.jpg)。
-  如果内容为<img src="https://example.com/image1.jpg">一只小猫 和 <img src="https://example.com/image2.jpg">一只小狗 和 <img src="https://example.com/image3.jpg">一只小牛，你的输出应为：![一只小猫](https://example.com/image1.jpg) 和 ![一只小狗](https://example.com/image2.jpg) 和 ![一只小牛](https://example.com/image3.jpg)
+Only when the current knowledge has content recall, answer questions based on the referenced content:
+ 1. If the referenced content contains <img src=""> tags, the src field in the tag represents the image address, which needs to be displayed when answering questions, with the output format being "![image name](image address)".
+ 2. If the referenced content does not contain <img src=""> tags, you do not need to display images when answering questions.
+For example:
+  If the content is <img src="https://example.com/image.jpg">a kitten, your output should be: ![a kitten](https://example.com/image.jpg).
+  If the content is <img src="https://example.com/image1.jpg">a kitten and <img src="https://example.com/image2.jpg">a puppy and <img src="https://example.com/image3.jpg">a calf, your output should be: ![a kitten](https://example.com/image1.jpg) and ![a puppy](https://example.com/image2.jpg) and ![a calf](https://example.com/image3.jpg)
 The following is the content of the data set you can refer to: \n
 '''
 {{ knowledge }}
 '''
 
 ** Pre toolCall **
-{{ tools_pre_retriever}}，
-- 只有当前Pre toolCall有内容召回结果时，根据引用的内容里tool里data字段回答问题
+{{ tools_pre_retriever}},
+- Only when the current Pre toolCall has content recall results, answer questions based on the data field in the tool from the referenced content
 
+Note: The output language must be consistent with the language of the user's question.
 `