[Feature]: 新增Excel导入功能

[HELANYOURUO]

技术方案连接（Issue）

https://ocngxzrr34ln.feishu.cn/file/D76FbfAaBo7W9WxggZIc2Wrrnwe

改动原因

目前B端“Excel导入”功能未实现，创建问卷方式不够丰富

改动内容

实现了B端“Excel导入”的功能，B端用户可以在创建问卷时选择“Excel导入”方式创建问卷。主要地，在前端增加了“Excel导入”的界面web\src\management\pages\list\components\ExcelImport.vue，并在web\src\management\pages\list\index.vue中使用，此外在web\public\excel_survey_template.xlsx处存放Excel模板。在后端server\src\modules\survey\controllers\survey.controller.ts中新增API“POST /api/survey/uploadExcel”，并在server/src/modules/survey/dto/createSurvey.dto.ts中允许创建问卷的方式为“ExcelImport”。

[codecov]

Codecov Report

Attention: Patch coverage is 6.00000% with 47 lines in your changes missing coverage. Please review.

Please upload report for BASE (feature/peking-2025@96e80ee). Learn more about missing BASE report.

Files with missing lines	Patch %	Lines
...rc/modules/survey/controllers/survey.controller.ts	6.00%	43 Missing and 4 partials ⚠️

Additional details and impacted files

@@                  Coverage Diff                   @@
##             feature/peking-2025     #503   +/-   ##
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  Coverage                       ?   81.52%           
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  Files                          ?      142           
  Lines                          ?     3631           
  Branches                       ?      467           
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  Hits                           ?     2960           
  Misses                         ?      645           
  Partials                       ?       26           

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