feat(purchase): 履约验收优化界面，移除是否签订合同选择

- 移除是否签订合同手动选择，由系统自动判断
- 合同信息单独分栏显示，展示合同名称/编号/金额/供应商
- 已签订合同以绿色卡片展示
- 未签订合同显示警告提示
- 合同审批中显示错误提示，禁止操作
- 供应商名称合并到合同信息中展示
- 未签订合同时才显示成交金额和供应商输入

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

@@ -237,7 +237,6 @@ const saveCommonConfig = async () => {
 	const formRef = commonFormRef.value;
 	const valid = await formRef?.validate?.().catch(() => false);
 	if (!valid) return;
-	// 直接从子组件 form 读取，确保拿到用户填写的最新值（避免 v-model 同步延迟）
 	const form = formRef?.form || commonForm.value;
 	const isInstallment = form.isInstallment === '1' || form.isInstallment === 1;
 	if (isInstallment && (!form.totalPhases || form.totalPhases < 1)) {
@@ -248,16 +247,14 @@ const saveCommonConfig = async () => {
 	try {
 		await apiSaveCommonConfig({
 			purchaseId: String(purchaseId.value),
-			hasContract: form.hasContract ?? '0',
-			contractId: form.contractId ?? '',
 			isInstallment: form.isInstallment ?? '0',
 			totalPhases: isInstallment ? Number(form.totalPhases) || 1 : 1,
-			supplierName: String(form.supplierName ?? ''),
 			purchaserId: String(form.purchaserId ?? ''),
 			purchaserName: String(form.purchaserName ?? ''),
 			assetAdminId: String(form.assetAdminId ?? ''),
 			assetAdminName: String(form.assetAdminName ?? ''),
 			transactionAmount: form.transactionAmount ?? null,
+			supplierName: String(form.supplierName ?? ''),
 		});
 		useMessage().success('保存成功');
 		await loadData();