插件

通过 `happy_fireworks` Agent 工具为 DSH Web UI 增加庆祝礼花覆盖层。

Fireworks celebration engine: floats fireworks above the chat window while the agent codes; welcome, per-turn, tool-spark, milestone, finish and failure events each draw from their own fireworks card group with random variants, and token usage decides firework size, height and splendour.

《原神》宵宫主题：严格核算过对比度的明暗双色板、程序化生成的烟花粒子层，以及一个读取你自己本地文件的播放器——歌曲与封面不上传到任何地方。语法高亮为暖色，标识为自绘金鱼；除壁纸外所有画面都由 CSS 渐变与手写 SVG 生成。