feat: Agent CLI 与终端审计回放全面优化

- Agent CLI: 多轮对话、SSH 长连接、流式推理、Evolver 按用户隔离、历史侧栏
- 终端审计: 回放播放器、命令书签、筛选分页导出、命令输出统计、录制落盘修复
- 修复 session_commands 表迁移、Kill 竞态导致录制丢失、无录制会话回放提示
- 审计历史页只读（移除删除），移除回放弹框录制搜索

frontend/src/components/system/TerminalSessionsTab.tsx

@@ -39,7 +39,8 @@ function formatSize(bytes: number): string {
  */
 export function TerminalSessionsTab() {
   const confirm = useConfirm();
-  const { data: sessions = [], isLoading: loading, refetch } = useTerminalSessions({ page: 1, page_size: 100 });
+  const { data, isLoading: loading, refetch } = useTerminalSessions({ page: 1, page_size: 100 });
+  const sessions = data?.list ?? [];
   const { deleteMutation, batchDeleteMutation } = useTerminalSessionMutations();
   const [keyword, setKeyword] = useState('');
   const [statusFilter, setStatusFilter] = useState('');