v0.2.1

Adds a self-update check, expands the commit-history graph by default, and fixes several lane-connection and text-alignment issues.

新增自更新检测功能，提交历史图默认展开，并修复多处泳道连线与文字对齐问题。

New / Improved 新增 / 改进

Self-update — on first open the panel silently checks the npm registry for a newer version; when one exists, an update badge appears on the sidebar entry and a one-click "update now" link shows in the panel header, followed by a restart prompt. The check is non-fatal (a network/proxy failure stays silent), results are cached for 10 minutes, and the registry base can be overridden via registryUrl.
自更新检测：面板首次打开时静默检查 npm registry 是否有新版本；有新版时，侧边栏入口显示更新徽章，面板头部出现一键「立即更新」链接，更新后提示重启。检查失败（网络/代理问题）保持静默，结果缓存 10 分钟，可通过 registryUrl 覆盖 registry 地址。
History expanded by default — the commit graph opens automatically instead of starting collapsed.
历史图默认展开：提交图默认自动展开，不再默认收起。

Fixed extra dangling vertical lines in the lane graph with many branches (octopus merges).
修复多分支（octopus merge）时泳道图出现多余悬空竖线的问题。
Fixed broken/dangling slanted lines in criss-cross merges.
修复交叉合并（criss-cross）时斜线断线、悬空的问题。
Fixed commit messages being pushed apart and misaligned when many branches are open — text now hugs the rightmost lane crossing each row.
修复分支多时提交消息间距被拉大、不统一的问题——文字现在紧跟经过该行的最右泳道。

dsh plugin --profile web update @mojiexuan/dsh-git

Fully restart dsh web (host bundle) and refresh the browser (client bundle).

完全重启 dsh web（host bundle），并刷新浏览器（client bundle）。