system-notification 2

DeepSeek Harness 通知中心：标签页鲸鱼状态灯（绿=跑完 / 琥珀=待处理）+ 浏览器系统通知（完成/待处理提示、45 个 opencode 音效可选、音量可配）。

DeepSeek Harness plugin: per-state desktop notifications — a card per session state with its own bell, volume, and system-notification template