feat(P4): precompute移植+app.js sources双向回填+回归1003/1003+验收体积/文件/data.json

site/details/dragupload.json

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+{"slug":"dragupload","contract":{"variants":["默认拖拽区","悬停高亮","上传中（进度）","上传失败","图片预览"],"dims":[{"name":"state","values":["idle","dragover","uploading","error","done"]},{"name":"listType","values":["text","picture"]}],"unknowns":["虚线边框的颜色与圆角","文件列表的最大高度"],"anatomy":{"zone":"拖拽区域：虚线边框，悬停高亮","list":"文件列表显示进度、状态","preview":"支持图片预览、删除","limit":"限制文件类型、大小、数量"},"doNot":["分片上传与断点续传"],"usage":["支持点击或拖拽文件上传","拖拽区域虚线边框，悬停高亮","文件列表显示进度、状态","支持图片预览、删除","限制文件类型、大小、数量"],"structure":{"zoneBorder":"虚线","states":"idle / dragover / uploading / error / done"}},"specLines":["- 支持点击或拖拽文件上传","- 拖拽区域虚线边框，悬停高亮","- 文件列表显示进度、状态","- 支持图片预览、删除","- 限制文件类型、大小、数量"]}