[BUG] Unexpected token '<', "<!doctype "... is not valid JSON

[PannyHuang]

Bug Description
软件版本：v1.8.1
场景：桌面程序，文生图对话框，请求dall-e-3模型生成图片，得到错误：Unexpected token '<', "<!doctype "... is not valid JSON

提示词：Medium shot, soft natural sunlight, playful Chinese rural dog, grassy field, scattered wild

Steps to Reproduce
桌面程序，文生图对话框

Expected Results
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Desktop (please complete the following information):

• Operating System: [e.g. macOS]
• Application Version: [e.g. 2.0.1]

Additional Context
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Bug 描述
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重现步骤
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2. 点击 "......"
3. 滚动到 "......"
4. 发现了这个 bug。

期望结果
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实际结果
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截图

桌面端（请填写以下信息）：

• 操作系统：macOS，windows11
• 应用程序版本：v1.8.1

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