[Feature] 能否提交工单的时候加一个上传图片功能

[githup-wyw]

提交工单的时候需要上传领导的签字文件作为凭证，审核人员和执行人员看到凭证后才能通过，不需要必填

[Issues-translate-bot]

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Title: [Feature]. Can you add an uploaded image when submitting a work order? Function

When submitting a work order, you need to upload the signature document of the leader as a voucher. Reviewers and executives can only pass it after seeing the voucher. There is no need to fill in

[JackloveJam]

在作者没给出这种解决办法时，我们是用OA系统完成这一环节。😂

[Issues-translate-bot]

Bot detected the issue body's language is not English, translate it automatically. 👯👭🏻🧑‍🤝‍🧑👫🧑🏿‍🤝‍🧑🏻👩🏾‍🤝‍👨🏿👬🏿

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When the author did not provide this solution, we used the OA system to complete this step. 😂