✨ 合同结算币种联动计费与运单计价单位，并完善合同与派车交互

结算币种驱动计费单价单位及运单/计划/总单计价单位；同步合同编号预览、部门前缀配置、派车备注与查看弹窗等交互优化。

Co-authored-by: Cursor <cursoragent@cursor.com>

src/utils/currency.js

@@ -0,0 +1,109 @@
+const CURRENCY_NAME_MAP = {
+  CNY: '人民币',
+  RMB: '人民币',
+  USD: '美元',
+  EUR: '欧元',
+  JPY: '日元',
+  GBP: '英镑',
+};
+
+const CURRENCY_UNIT_MAP = {
+  CNY: '元',
+  RMB: '元',
+  USD: '美元',
+  EUR: '欧元',
+  JPY: '日元',
+  GBP: '英镑',
+};
+
+const CURRENCY_NAME_TO_UNIT = {
+  人民币: '元',
+  美元: '美元',
+  欧元: '欧元',
+  日元: '日元',
+  英镑: '英镑',
+};
+
+/**
+ * 归一化币种代码（CNY → RMB）
+ */
+export function normalizeCurrencyCode(value, fallback = 'RMB') {
+  const raw =
+    typeof value === 'object'
+      ? value?.dictKey || value?.value || value?.code || value?.dictValue || ''
+      : value;
+  const normalized = String(raw || fallback)
+    .trim()
+    .toUpperCase();
+  const code = normalized.includes(' - ') ? normalized.split(' - ')[0].trim() : normalized;
+  if (!code) return fallback;
+  return code === 'CNY' ? 'RMB' : code;
+}
+
+/**
+ * 币种中文名称
+ */
+export function currencyName(value) {
+  const text = String(value || '');
+  if (text.includes(' - ')) return text.slice(text.indexOf(' - ') + 3);
+  return CURRENCY_NAME_MAP[text.toUpperCase()] || text;
+}
+
+/**
+ * 金额单位文案：RMB/CNY → 元，USD → 美元
+ */
+export function currencyUnit(value) {
+  const text = String(value || '');
+  let code = text;
+  if (text.includes(' - ')) {
+    code = text.split(' - ')[0].trim();
+  }
+  const upperCode = code.toUpperCase();
+  if (CURRENCY_UNIT_MAP[upperCode]) {
+    return CURRENCY_UNIT_MAP[upperCode];
+  }
+  if (CURRENCY_NAME_TO_UNIT[code]) {
+    return CURRENCY_NAME_TO_UNIT[code];
+  }
+  return text || '元';
+}
+
+/**
+ * 将计价单位前缀替换为当前币种单位，如 元/吨 → 美元/吨
+ */
+export function remapPriceUnitCurrency(priceUnit, currency) {
+  const text = String(priceUnit || '').trim();
+  if (!text || !text.includes('/')) return text;
+  const suffix = text.slice(text.indexOf('/'));
+  return `${currencyUnit(currency)}${suffix}`;
+}
+
+/**
+ * 按数量单位生成默认计价单位
+ */
+export function resolvePriceUnitByQuantityUnit(quantityUnit, currency = 'RMB') {
+  const unit = currencyUnit(currency);
+  return (
+    {
+      吨: `${unit}/吨`,
+      方: `${unit}/立方`,
+      件: `${unit}/件`,
+    }[String(quantityUnit || '').trim()] || ''
+  );
+}
+
+/**
+ * 将字典中的计价单位选项映射到当前币种
+ */
+export function mapFeeUnitOptions(options = [], currency = 'RMB') {
+  const unit = currencyUnit(currency);
+  return (options || []).map(item => {
+    const label = String(item.label || item.value || '');
+    const value = String(item.value || item.label || '');
+    return {
+      ...item,
+      label: label.replace(/^元/, unit).replace(/^人民币/, unit),
+      value: value.replace(/^元/, unit).replace(/^人民币/, unit),
+    };
+  });
+}