v0.21.3

改进：安装（setup）时不再询问 OpenCode Zen 的 key。需要时在 dsh「设置 → dsh-model → 来源」里打开它（或执行 dsh-model opencode key）；已经填过的 key 照常刷新模型。

Change: setup no longer asks for the OpenCode Zen key. Turn it on from dsh Settings → dsh-model → Sources when you need it (or run dsh-model opencode key); an existing key is still refreshed.