feat (router): 新增采购详情路由，优化预警数量管理功能

在管理员模块与商家模块中新增采购详情页面路由。
升级预警数量管理组件，优化交互体验与功能逻辑。

manager/src/api/procurement.js

@@ -0,0 +1,38 @@
+import {
+  getRequest,
+  postRequest,
+  putRequest,
+  deleteRequest,
+} from "@/libs/axios";
+
+// ========== 采购单（只读） ==========
+export const getProcurementOrderPage = params => getRequest("/procurement/order", params);
+export const getProcurementOrderDetail = id => getRequest(`/procurement/order/${id}`);
+
+// ========== 采购入库单（只读） ==========
+export const getProcurementInboundPage = params => getRequest("/procurement/inbound", params);
+export const getProcurementInboundDetail = id => getRequest(`/procurement/inbound/${id}`);
+export const getProcurementInboundItems = id => getRequest(`/procurement/inbound/${id}/items`);
+
+// ========== 盘点单（只读） ==========
+export const getInventoryCountPage = params => getRequest("/procurement/inventory-count/page", params);
+export const getInventoryCountDetail = id => getRequest(`/procurement/inventory-count/${id}`);
+export const getInventoryCountItemsPage = (id, params) =>
+  getRequest(`/procurement/inventory-count/${id}/items/page`, params);
+export const downloadInventoryCountItems = id =>
+  getRequest(`/procurement/inventory-count/${id}/download`);
+export const exportInventoryCountItems = id =>
+  getRequest(`/procurement/inventory-count/${id}/export`, {}, "blob");
+
+// ========== 报损单（只读） ==========
+export const getDamageReportPage = params => getRequest("/procurement/damage-report/page", params);
+export const getDamageReportDetail = id => getRequest(`/procurement/damage-report/${id}`);
+export const getDamageReportItems = id => getRequest(`/procurement/damage-report/${id}/items`);
+
+// ========== 出入库原因 CRUD ==========
+export const getStockReasonPage = params => getRequest("/procurement/reason", params);
+export const addStockReason = params =>
+  postRequest("/procurement/reason", params, { "Content-Type": "application/json" });
+export const updateStockReason = params =>
+  putRequest("/procurement/reason", params, { "Content-Type": "application/json" });
+export const deleteStockReason = id => deleteRequest(`/procurement/reason/${id}`);