fix: 部门下拉从store取enterprise_id

frontend/src/views/module_payment/institution/components/InstitutionForm.vue

@@ -230,6 +230,7 @@ import {
 } from "@/api/module_payment/institution";
 import InstitutionAPI from "@/api/module_payment/institution";
 import DepartmentAPI from "@/api/module_payment/department";
+import { useEnterpriseStore } from "@/store/modules/enterprise.store";
 import { reactive, ref, watch, computed } from "vue";
 import EmployeeSelector from "./EmployeeSelector.vue";
 
@@ -289,9 +290,14 @@ const departmentOptions = ref<{ value: string; label: string }[]>([]);
 
 // 从后端加载真实部门数据
 async function loadDepartments() {
-  if (!formData.enterprise_id) return;
+  let eid = formData.enterprise_id;
+  if (!eid) {
+    const store = useEnterpriseStore();
+    eid = store.getCurrentEnterprise?.enterprise_id || eid;
+  }
+  if (!eid) return;
   try {
-    const res = await DepartmentAPI.listDepartment({ enterprise_id: formData.enterprise_id, page_no: 1, page_size: 200 });
+    const res = await DepartmentAPI.listDepartment({ enterprise_id: eid, page_no: 1, page_size: 200 });
     const items = res?.data?.data?.items || [];
     departmentOptions.value = items.map((d: any) => ({
       value: d.department_id,