fix: The newly created simple application dialogue process label is not effective

[shaohuzhang1]

fix: The newly created simple application dialogue process label is not effective

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[shaohuzhang1]

There is an issue with the reasoning_content_start field: it now uses <think> by default instead of {"start": "<think>"}. This could lead to unexpected behavior if this value were required at runtime or if other parts of your application expect {"start": "<think>"} directly.

To resolve this, you should change the default value back to {"start": "<think>"}:

        reasoning_content_start = serializers.CharField(required=False, allow_null=True, 
                                                      default={"start": "<think>"},
                                                       allow_blank=True, max_length=256,
                                                      error_messages=ErrMessage.char(_("The thinking process begins to mark")))

Also, ensure there are no similar issues with other fields that might have default values affecting expected data integrity.