fix(admin): make ticket "view latest" jump reliably

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

assets/css/admin/tickets.css

@@ -85,7 +85,7 @@ html.aksrt-ticket-modal-open { overflow: hidden; scrollbar-gutter: stable; }
 .aksrt-ticket-conversation > .aksrt-ticket-section-head { margin: 0; padding: 12px 16px; border-bottom: 1px solid var(--an-border-soft); }
 
 /* 会话时间线：用户在左、客服在右、系统事件居中。 */
-.aksrt-ticket-conversation__scroll { max-height: 52vh; padding: 20px 16px; overflow-y: auto; overscroll-behavior: contain; scroll-behavior: smooth; }
+.aksrt-ticket-conversation__scroll { max-height: 52vh; padding: 20px 16px; overflow-y: auto; overscroll-behavior: contain; }
 .aksrt-ticket-detail__thread { display: flex; flex-direction: column; gap: 18px; margin: 0; padding: 0; list-style: none; }
 .aksrt-ticket-detail__message { display: flex; align-items: flex-start; gap: 10px; max-width: 86%; margin: 0; }
 .aksrt-ticket-detail__message.is-admin { flex-direction: row-reverse; align-self: flex-end; }