feat: 社保AI建议、合同附件多文件上传预览、删除合同、扩展上传格式

frontend/src/pages/roster/AttachmentInfo.tsx

@@ -29,11 +29,10 @@ export default function AttachmentInfo({ employeeId, attachments }: { employeeId
     if (!file) return
 
     // 文件类型校验
-    const allowedTypes = ['application/pdf', 'image/jpeg', 'image/jpg', 'image/png', 'image/heic']
-    const allowedExts = ['.pdf', '.jpg', '.jpeg', '.png', '.heic']
+    const allowedExts = ['.pdf', '.jpg', '.jpeg', '.png', '.heic', '.gif', '.bmp', '.webp', '.doc', '.docx', '.xls', '.xlsx', '.tiff', '.tif']
     const ext = file.name.toLowerCase().substring(file.name.lastIndexOf('.'))
-    if (!allowedTypes.includes(file.type) && !allowedExts.includes(ext)) {
-      toast.error('不支持的文件格式，请上传 PDF、JPG、PNG 或 HEIC 格式')
+    if (!allowedExts.includes(ext)) {
+      toast.error('不支持的文件格式，支持 PDF、图片、Word、Excel 等常见格式')
       return
     }