chore: 提交剩余开发改动

包含商务通消息映射、会话时间与未读状态、前端消息展示、数据库修复迁移、测试覆盖备份及 Captain 设计文档。

frontend/app/javascript/dashboard/components-next/message/MessageMeta.vue

@@ -1,5 +1,7 @@
 <script setup>
 import { computed } from 'vue';
+import { zhCN } from 'date-fns/locale';
+import { useI18n } from 'vue-i18n';
 import { messageTimestamp } from 'shared/helpers/timeHelper';
 
 import MessageStatus from './MessageStatus.vue';
@@ -32,9 +34,17 @@ const {
   contentAttributes,
 } = useMessageContext();
 
-const readableTime = computed(() =>
-  messageTimestamp(createdAt.value, 'LLL d, h:mm a')
-);
+const { locale } = useI18n();
+
+const readableTime = computed(() => {
+  if (locale.value === 'zh_CN') {
+    return messageTimestamp(createdAt.value, 'M月d日 aaa h:mm', {
+      locale: zhCN,
+      fallbackFormat: 'yyyy年M月d日 aaa h:mm',
+    });
+  }
+  return messageTimestamp(createdAt.value, 'LLL d, h:mm a');
+});
 
 const showStatusIndicator = computed(() => {
   if (isPrivate.value) return false;
@@ -73,7 +83,8 @@ const isSent = computed(() => {
   // All messages will be mark as sent for the Line channel, as there is no source ID.
   if (isALineChannel.value) return true;
 
-  return false;
+  // Custom channels persist platform-side messages with their final status.
+  return status.value === MESSAGE_STATUS.SENT;
 });
 
 const isDelivered = computed(() => {
@@ -99,7 +110,7 @@ const isDelivered = computed(() => {
     return status.value === MESSAGE_STATUS.DELIVERED;
   }
 
-  return false;
+  return status.value === MESSAGE_STATUS.DELIVERED;
 });
 
 const isRead = computed(() => {
@@ -119,7 +130,7 @@ const isRead = computed(() => {
     return status.value === MESSAGE_STATUS.READ;
   }
 
-  return false;
+  return status.value === MESSAGE_STATUS.READ;
 });
 
 const statusToShow = computed(() => {