Friend application notification 1203 ServerFriendRequestToLocalFriendRequest null pointer panic during processing

[cqlmim]

环境

• 客户端：flutter_openim_sdk 版本：____
• 日志里 sdk-core 版本：v3.8.3-patch.10
• 平台：Android（架构：arm64-v8a 等）

现象

收到好友申请推送后，native 在处理通知时 panic，Dart 侧 onFriendApplicationAdded 不稳定/收不到。

完整 panic 栈

（粘贴之前 DoListener panic 的整段 stack，含 ServerFriendRequestToLocalFriendRequest、relation/notification.go）

复现步骤

1. 用户 A 向用户 B 发起好友申请
2. B 端在线，收到 pushMsg / notification

关键日志（push / notification）

（粘贴你这段 pushMsg、notification handling、NotificationCmd end 的 JSON/文本即可）

content 解码（便于核对协议）

1203 消息的 content（base64）解码后示例：
{"detail":"{\"fromToUserID\":{\"fromUserID\":\"1442403458\",\"toUserID\":\"5225942209\"}}"}

（把你们的真实 from/to 保留或打码均可）

期望行为

处理 1203 不 panic，并正常同步好友申请 / 触发上层回调。

实际行为

runtime error: invalid memory address or nil pointer dereference 于 ServerFriendRequestToLocalFriendRequest（conversion.go）。
{"operationID": "1778035070832", "push": "notificationMsgs:{key:"n_1442403458_5225942209" value:{Msgs:{sendID:"1442403458" recvID:"5225942209" clientMsgID:"1133539146d040cb98d5cac4f7858e67" serverMsgID:"5158216e5b88af939f60176226e50cba" sessionType:1 msgFrom:200 contentType:1203 content:"{\"detail\":\"{\\\"fromToUserID\\\":{\\\"fromUserID\\\":\\\"1442403458\\\",\\\"toUserID\\\":\\\"5225942209\\\"}}\"}" sendTime:1778035071989 createTime:1778035071988 options:{key:"conversationUpdate" value:false} options:{key:"history" value:false} options:{key:"isNotNotification" value:false} options:{key:"isSendMsg" value:false} options:{key:"notPrivate" value:false} options:{key:"offlinePus
I/GoLog (27119): h" value:false} options:{key:"persistent" value:false} options:{key:"reactionFromCache" value:false} options:{key:"senderConversationUpdate" value:false} options:{key:"senderSync" value:true} options:{key:"unreadCount" value:false} offlinePushInfo:{title:"Somebody applies to add you as a friend" desc:"Somebody applies to add you as a friend" ex:"Somebody applies to add you as a friend"}}}}", "syncedMaxSeqs": {"n_4107844326":697,"sg_4107844326":6899}}
I/GoLog (27119): 2026-05-06 02:37:51.583 INFO [PID:27119] [v3.8.3-patch.10] [flutter/Android]