fix(worker): 验收重复提交幂等，修复卡待验收与手动验收 500

apps/frontend/src/pages/worker/WorkerOrderModals.tsx

@@ -1,6 +1,7 @@
 import { PictureOutlined } from '@ant-design/icons'
 import { Button, Form, Input, Modal, Radio, Space, Tag, Typography } from 'antd'
 import type { FormInstance } from 'antd'
+import { useRef, useState } from 'react'
 
 import ImageUpload from '@/components/files/ImageUpload'
 import VideoUpload from '@/components/files/VideoUpload'
@@ -109,6 +110,22 @@ export function WorkerOrderModals({
   onSubmitGiftMaterial: (values: GiftMaterialFormValues) => void | Promise<void>
 }) {
   const feedbackItems = feedbacks.filter((item) => item.workOrderId === feedbackOrder?.workOrderId)
+  // 验收提交/保存加锁：双击或慢响应时只允许一个请求在飞，避免后端重复结算。
+  const acceptanceBusyRef = useRef(false)
+  const [acceptanceBusy, setAcceptanceBusy] = useState(false)
+
+  async function runAcceptanceAction(action: () => void | Promise<void>) {
+    if (acceptanceBusyRef.current) return
+    acceptanceBusyRef.current = true
+    setAcceptanceBusy(true)
+    try {
+      await action()
+    } finally {
+      acceptanceBusyRef.current = false
+      setAcceptanceBusy(false)
+    }
+  }
+
   return (
     <>
       <Modal
@@ -237,18 +254,33 @@ export function WorkerOrderModals({
             <Space>
               <Button onClick={onCloseAcceptance}>取消</Button>
               {canSupplementAcceptedEvidence(editingOrder) ? (
-                <Button type="primary" onClick={() => acceptanceForm.submit()}>
+                <Button
+                  type="primary"
+                  loading={acceptanceBusy}
+                  disabled={acceptanceBusy}
+                  onClick={() => acceptanceForm.submit()}
+                >
                   补充图片
                 </Button>
               ) : (
                 <>
                   <Button
-                    onClick={() => void onSaveAcceptanceImages(acceptanceForm.getFieldsValue())}
+                    disabled={acceptanceBusy}
+                    onClick={() =>
+                      void runAcceptanceAction(() =>
+                        onSaveAcceptanceImages(acceptanceForm.getFieldsValue()),
+                      )
+                    }
                   >
                     {hasSubmittedAcceptance(editingOrder) ? '保存修改' : '保存暂存'}
                   </Button>
                   {canSubmitAcceptance(editingOrder) ? (
-                    <Button type="primary" onClick={() => acceptanceForm.submit()}>
+                    <Button
+                      type="primary"
+                      loading={acceptanceBusy}
+                      disabled={acceptanceBusy}
+                      onClick={() => acceptanceForm.submit()}
+                    >
                       提交验收
                     </Button>
                   ) : null}
@@ -258,7 +290,11 @@ export function WorkerOrderModals({
           ) : null
         }
       >
-        <Form form={acceptanceForm} layout="vertical" onFinish={onSubmitAcceptance}>
+        <Form
+          form={acceptanceForm}
+          layout="vertical"
+          onFinish={(values) => runAcceptanceAction(() => onSubmitAcceptance(values))}
+        >
           {!editingOrder || !canSupplementAcceptedEvidence(editingOrder) ? (
             <Form.Item label="完成说明" name="note">
               <Input.TextArea rows={3} placeholder="可补充代练结果、注意事项或截图说明。" />