fix(purchase): 修复合同流程状态判断问题

- 将 contractFlowStatus 从独立 ref 改为 form 对象中的属性
- 确保通过 v-model 传递时状态正确同步
- 更新所有判断条件使用 form.contractFlowStatus

src/views/purchase/purchasingrequisition/accept/AcceptCommonForm.vue

@@ -22,7 +22,7 @@
 			<span>正在查询合同...</span>
 		</div>
 
-		<div v-else-if="form.hasContract === '1' && contractFlowStatus === '1'" class="contract-card success">
+		<div v-else-if="form.hasContract === '1' && form.contractFlowStatus === '1'" class="contract-card success">
 			<div class="contract-card-header">
 				<el-icon><CircleCheckFilled /></el-icon>
 				<span>已签订合同</span>
@@ -55,7 +55,7 @@
 			</el-row>
 		</div>
 
-		<el-alert v-else-if="form.hasContract === '1' && contractFlowStatus !== '1'" type="error" :closable="false" show-icon class="mb20">
+		<el-alert v-else-if="form.hasContract === '1' && form.contractFlowStatus !== '1'" type="error" :closable="false" show-icon class="mb20">
 			<template #title>
 				<span>合同正在流程审批中，无法进行履约操作</span>
 			</template>
@@ -175,7 +175,6 @@ const emit = defineEmits(['update:modelValue']);
 
 const formRef = ref<FormInstance>();
 const contractLoading = ref(false);
-const contractFlowStatus = ref('');
 
 const purchaserOptions = ref<any[]>([]);
 const purchaserLoading = ref(false);
@@ -189,6 +188,7 @@ const form = reactive({
 	contractName: '',
 	contractNo: '',
 	contractMoney: null as number | null,
+	contractFlowStatus: '',
 	isInstallment: '0',
 	totalPhases: 1,
 	projectName: '',
@@ -202,7 +202,7 @@ const form = reactive({
 });
 
 const canEdit = computed(() => {
-	return form.hasContract !== '1' || contractFlowStatus.value === '1';
+	return form.hasContract !== '1' || form.contractFlowStatus === '1';
 });
 
 const syncFormFromModel = (val: Record<string, any> | undefined) => {
@@ -212,7 +212,7 @@ const syncFormFromModel = (val: Record<string, any> | undefined) => {
 	form.contractName = val.contractName || '';
 	form.contractNo = val.contractNo || '';
 	form.contractMoney = val.contractMoney || null;
-	contractFlowStatus.value = val.contractFlowStatus || '';
+	form.contractFlowStatus = val.contractFlowStatus || '';
 	form.isInstallment = val.isInstallment || '0';
 	form.totalPhases = val.totalPhases || 1;
 	form.supplierName = val.supplierName || '';
@@ -323,7 +323,7 @@ const rules: FormRules = {
 };
 
 const validate = async () => {
-	if (form.hasContract === '1' && contractFlowStatus.value !== '1') {
+	if (form.hasContract === '1' && form.contractFlowStatus !== '1') {
 		useMessage().error('合同正在流程审批中，无法进行履约操作');
 		return false;
 	}