多步表单、提交与恢复

npx --no-install amble-extension init expense-demo --name expense-demo --template expense
cd expense-demo
npm install --save-dev "$AMBLELOFT_PACKS/ambleloft-extension-sdk-0.1.0-alpha.9.tgz" "$AMBLELOFT_PACKS/ambleloft-extension-core-0.1.0-alpha.9.tgz" "$AMBLELOFT_PACKS/ambleloft-extension-cli-0.1.0-alpha.9.tgz"
npm run build
npm run validate
npm run pack

version: 1
id: travel
title: 财务报销助手
description: 本机模拟报销。修改行程会生成新草稿；返回上一步不会撤销业务记录。
steps:
  - id: itinerary
    title: 行程
    fields:
      - name: region
        type: select
        label: 出差地区
        required: true
        options:
          - {label: 上海, value: shanghai}
          - {label: 北京, value: beijing}
      - {name: date, type: date, label: 出差日期, required: true}
    next:
      kind: operation
      label: 保存行程并继续
      operation: samples.expense-workflow.saveDraft
      input:
        region: {from: steps.itinerary.region}
        date: {from: steps.itinerary.date}
      recovery: {operation: samples.expense-workflow.lookupDraft}
  - id: expenses
    title: 费用
    fields:
      - {name: amount, type: money, label: 金额, currency: CNY, scale: 2, minimum: '0.01', maximum: '1000000.00', required: true}
      - {name: remark, type: textarea, label: 说明, maxLength: 2000, required: true}
  - id: confirmation
    title: 确认
    fields:
      - {name: confirmed, type: checkbox, label: 我已核对报销信息, required: true}
submit:
  kind: operation
  label: 提交报销
  operation: samples.expense-workflow.submitExpense
  input:
    draftId: {from: results.itinerary.draftId}
    amount: {from: steps.expenses.amount}
    remark: {from: steps.expenses.remark}
    confirmed: {from: steps.confirmation.confirmed}
  recovery: {operation: samples.expense-workflow.lookupExpense}

type FormRecoveryResult<T> =
  | { status: 'succeeded'; result: T }
  | { status: 'notExecuted' }
  | { status: 'unknown' };