feat(orderFulfill): 增强订单发货逻辑与界面

- 新增无需配送场景及发货模式相关工具函数
- 更新订单详情与订单管理页，支持整单发货、分包裹发货、无需配送
- 优化物流信息与订单日志展示
- 重构订单发货 API 以适配新逻辑
- 增强订单列表与详情页的发货选项与操作展示

seller/src/utils/orderFulfill.js

@@ -0,0 +1,72 @@
+/** @typedef {'WHOLE' | 'SPLIT' | 'NO_DELIVERY'} FulfillmentMode */
+
+const NON_SHIPPABLE_ORDER_TYPES = ["E_COUPON", "VIRTUAL"];
+
+/** 电子卡券 / 虚拟 / 自提订单不适用商家发货 */
+export function isNonShippableOrder(order = {}) {
+  if (!order) return false;
+  if (NON_SHIPPABLE_ORDER_TYPES.includes(order.orderType)) return true;
+  return order.deliveryMethod === "SELF_PICK_UP";
+}
+
+export function canShowShipButton(allowOperation = {}, order = {}) {
+  return !!allowOperation.ship && !isNonShippableOrder(order);
+}
+
+export const FULFILLMENT_MODE_LABEL = {
+  WHOLE: "整单发货",
+  SPLIT: "拆单发货",
+  NO_DELIVERY: "无需配送",
+};
+
+/**
+ * @param {FulfillmentMode} mode
+ * @param {object} form
+ * @returns {string | null}
+ */
+export function validateFulfillForm(mode, form) {
+  if (mode === "WHOLE" || mode === "SPLIT") {
+    if (!form.logisticsId) return "请选择物流公司";
+    if (!form.logisticsNo || !String(form.logisticsNo).trim()) return "请填写运单号";
+  }
+  if (mode === "NO_DELIVERY") {
+    if (form.logisticsId || form.logisticsNo) return "无需配送不能填写物流信息";
+    if (form.deliveryRemark && form.deliveryRemark.length > 500) {
+      return "备注不能超过500字";
+    }
+  }
+  if (mode === "SPLIT") {
+    if (!form.items || !form.items.length) return "请至少选择一个商品";
+    for (const item of form.items) {
+      if (item.deliveryNum != null && item.deliveryNum <= 0) {
+        return "发货数量必须大于0";
+      }
+    }
+  }
+  return null;
+}
+
+/** @param {object} pkg */
+export function isNoDeliveryPackage(pkg) {
+  if (!pkg) return false;
+  return pkg.fulfillmentMode === "NO_DELIVERY" || pkg.logisticsRequired === false;
+}
+
+/** @param {string} mode */
+export function getFulfillmentModeLabel(mode) {
+  return FULFILLMENT_MODE_LABEL[mode] || mode || "-";
+}
+
+/**
+ * @param {object} allowOperation
+ * @returns {FulfillmentMode | null}
+ */
+export function resolveDefaultFulfillmentMode(allowOperation = {}, orderStatus) {
+  if (orderStatus === "PARTS_DELIVERED") {
+    return allowOperation.fulfillSplit ? "SPLIT" : null;
+  }
+  if (allowOperation.fulfillWhole) return "WHOLE";
+  if (allowOperation.fulfillSplit) return "SPLIT";
+  if (allowOperation.fulfillNoDelivery) return "NO_DELIVERY";
+  return null;
+}