修复配送合同草稿编辑状态判断

修正平台总后台将待处理状态误判为草稿的问题。
统一平台、气站和配送点后台的合同编辑限制，并补充禁用原因、回归检查及中文操作文档。

frontend/delivery_admin/src/views/shared/CrudListPage.vue

@@ -76,7 +76,9 @@
               <a-button v-if="definition.accountManagement" size="mini" type="primary" @click="manageAccounts(record)">账户管理</a-button>
               <a-button v-if="definition.name === 'staff_account'" size="mini" @click="viewCredentials(record)">查看资质</a-button>
               <a-button size="mini" @click="openDetail(record)">详情</a-button>
-              <a-button v-if="canEdit" size="mini" :disabled="isProtectedRecord(record)" @click="openEdit(record)">编辑</a-button>
+              <a-tooltip v-if="canEdit" :content="recordEditReason(record) || '编辑记录'">
+                <span><a-button size="mini" :disabled="Boolean(recordEditReason(record))" @click="openEdit(record)">编辑</a-button></span>
+              </a-tooltip>
               <a-button v-if="canChangeStatus && definition.name !== 'gas_basic'" size="mini" :disabled="isProtectedRecord(record)" @click="openStatus(record)">审核</a-button>
               <a-button v-if="canArchive" size="mini" status="danger" :disabled="isProtectedRecord(record)" @click="confirmArchive(record)">删除</a-button>
             </a-space>
@@ -766,6 +768,11 @@ function openCreate() {
 }
 
 function openEdit(row: Row) {
+  const reason = recordEditReason(row);
+  if (reason) {
+    Message.warning(reason);
+    return;
+  }
   editingIdentity.value = String(row.identity ?? '');
   resetForm(row);
   formVisible.value = true;
@@ -775,6 +782,17 @@ function isProtectedRecord(row: Row) {
   return props.definition.name === 'platform_role' && row.is_system === true;
 }
 
+/** 统一返回合同和系统记录的编辑阻止原因。 */
+function recordEditReason(row: Row) {
+  if (isProtectedRecord(row)) return '系统内置记录不允许编辑';
+  if (props.definition.name !== 'gasorder_contract') return '';
+  if (Number(row.contract_status) !== 0)
+    return '只有草稿状态的合同可以编辑';
+  if (![0, 1].includes(Number(row.status)))
+    return '停用、已归档或已冻结的合同不可编辑';
+  return '';
+}
+
 async function openDetail(row: Row) {
   try {
     detail.value = await resourceApi.detail<Row>(