feat(dialog): send_ai_assistant 支持自定义发送者昵称

接口新增可选 nickname 参数（最长20字），写入消息体 msg.nickname；
前端群聊昵称与回复预览对 AI 助手消息（userid=-1）显示自定义昵称，
留空回退默认"AI 助手"。

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

app/Http/Controllers/Api/DialogController.php

@@ -1716,6 +1716,7 @@ class DialogController extends AbstractController
      * @apiParam {String} text                 消息内容
      * @apiParam {String} [text_type=md]       消息格式：md 或 html
      * @apiParam {String} [silence=no]         是否静默发送：yes/no
+     * @apiParam {String} [nickname]           自定义发送者昵称（最多20字，留空则显示"AI 助手"）
      *
      * @apiSuccess {Number} ret     返回状态码（1正确、0错误）
      * @apiSuccess {String} msg     返回信息（错误描述）
@@ -1730,6 +1731,7 @@ class DialogController extends AbstractController
         $text = trim(Request::input('text'));
         $text_type = strtolower(trim(Request::input('text_type'))) ?: 'md';
         $silence = in_array(strtolower(trim(Request::input('silence'))), ['yes', 'true', '1']);
+        $nickname = trim(Request::input('nickname'));
         $markdown = in_array($text_type, ['md', 'markdown']);
         //
         if (empty($dialog_id) && empty($task_id)) {
@@ -1741,6 +1743,9 @@ class DialogController extends AbstractController
         if (mb_strlen($text) > 200000) {
             return Base::retError('消息内容最大不能超过200000字');
         }
+        if (mb_strlen($nickname) > 20) {
+            return Base::retError('发送者昵称最多不能超过20字');
+        }
         //
         if ($dialog_id) {
             // Direct dialog mode: verify user is a member
@@ -1787,6 +1792,9 @@ class DialogController extends AbstractController
         if ($markdown) {
             $msgData['type'] = 'md';
         }
+        if ($nickname !== '') {
+            $msgData['nickname'] = $nickname;
+        }
         //
         $result = WebSocketDialogMsg::sendMsg(
             null,

language/original-api.txt

@@ -992,3 +992,4 @@ LDAP 用户缺少邮箱属性，请联系管理员配置
 请选择成员
 待办提醒
 你有一条待办到提醒时间啦
+发送者昵称最多不能超过20字

resources/assets/js/pages/manage/components/DialogView/index.vue

@@ -2,7 +2,7 @@
     <div class="dialog-view" :class="viewClass" :data-id="msgData.id">
         <!--昵称-->
         <div v-if="dialogType === 'group'" class="dialog-username" @pointerdown="handleOperation($event, 'mention')">
-            <UserAvatar :userid="msgData.userid" :show-icon="false" :show-name="true" :click-open-detail="msgData.userid !== -1"/>
+            <UserAvatar :userid="msgData.userid" :show-icon="false" :show-name="true" :name-text="msgData.userid === -1 ? (msgData.msg.nickname || '') : ''" :click-open-detail="msgData.userid !== -1"/>
         </div>
 
         <div
@@ -13,7 +13,7 @@
             <!--回复-->
             <div v-if="!hideReply && msgData.reply_id && showReplyData(msgData.msg.reply_data)" class="dialog-reply no-dark-content" :class="replyClass" @click="viewReply">
                 <div class="reply-avatar">
-                    <UserAvatar :userid="msgData.msg.reply_data.userid" :show-icon="false" :show-name="true"/>
+                    <UserAvatar :userid="msgData.msg.reply_data.userid" :show-icon="false" :show-name="true" :name-text="msgData.msg.reply_data.userid === -1 ? ((msgData.msg.reply_data.msg && msgData.msg.reply_data.msg.nickname) || '') : ''"/>
                 </div>
                 <div class="reply-desc" v-html="$A.getMsgSimpleDesc(msgData.msg.reply_data, 'image-preview')"></div>
             </div>