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/i18n/locale/zh_CN/inboxMgmt.json

@@ -621,10 +621,10 @@
         "DISABLED": "已禁用"
       },
       "LOCK_TO_SINGLE_CONVERSATION": {
-        "ENABLED": "Reopen same conversation",
-        "DISABLED": "Create new conversations",
-        "ENABLED_DESCRIPTION": "When a contact messages again, the previous conversation will be reopened.",
-        "DISABLED_DESCRIPTION": "A new conversation will be created each time after the previous one is resolved."
+        "ENABLED": "重开同一会话",
+        "DISABLED": "创建新会话",
+        "ENABLED_DESCRIPTION": "当联系人再次发送消息时，将重新打开上一次会话。",
+        "DISABLED_DESCRIPTION": "上一次会话解决后，每次收到新消息都会创建一个新会话。"
       },
       "ENABLE_HMAC": {
         "LABEL": "启用"
@@ -669,8 +669,8 @@
         "DESCRIPTION": "Voice calling requires Twilio API Key credentials. These are used to generate tokens for agent voice connections."
       }
     },
-    "CHANNEL_PREFERENCES": "Channel Preferences",
-    "WIDGET_FEATURES": "Widget features",
+    "CHANNEL_PREFERENCES": "频道偏好设置",
+    "WIDGET_FEATURES": "组件功能",
     "ACCOUNT_HEALTH": {
       "TITLE": "Manage your WhatsApp account",
       "DESCRIPTION": "Review your WhatsApp account status, messaging limits, and quality. Update settings or resolve issues if needed",
@@ -776,9 +776,9 @@
       "SENDER_NAME_SECTION_TEXT": "启用/禁用在电子邮件中显示代理名称，如果禁用，将显示业务名称",
       "ENABLE_CONTINUITY_VIA_EMAIL": "通过电子邮件启用对话连续性",
       "ENABLE_CONTINUITY_VIA_EMAIL_SUB_TEXT": "如果有联系人的电子邮件地址，对话将会继续在电子邮件中进行。",
-      "ENABLE_CONTINUITY_VIA_EMAIL_DISABLED_TEXT": "This feature is available on a paid plan. Upgrade to enable conversation continuity via email.",
-      "LOCK_TO_SINGLE_CONVERSATION": "Conversation Routing",
-      "LOCK_TO_SINGLE_CONVERSATION_SUB_TEXT": "Configure conversation creation for existing contacts",
+      "ENABLE_CONTINUITY_VIA_EMAIL_DISABLED_TEXT": "此功能在付费计划中可用。升级后即可通过电子邮件启用对话连续性。",
+      "LOCK_TO_SINGLE_CONVERSATION": "会话路由",
+      "LOCK_TO_SINGLE_CONVERSATION_SUB_TEXT": "配置已有联系人的会话创建方式",
       "INBOX_UPDATE_TITLE": "收件箱设置",
       "INBOX_UPDATE_SUB_TEXT": "更新收件箱设置",
       "AUTO_ASSIGNMENT_SUB_TEXT": "启用或禁用添加到此收件箱的代理人自动分配新的会话。",