feat(P19ERP1-3,P19ERP1-4): 实现ERP凭证导出与管理入口

client/src/components/navigation/NavLinks.tsx

@@ -108,6 +108,12 @@ export const NAV_ITEMS: NavItem[] = [
     icon: "notifications_active",
     anyOf: ["notification.channel.manage"],
   },
+  {
+    to: "/system/integrations/erp",
+    label: "ERP 集成",
+    icon: "hub",
+    anyOf: ["integration.manage"],
+  },
   {
     to: "/system/approval-rules",
     label: "审批规则",