v1.2.0 Smart install & uninstall / 智能安装与卸载

智能安装：自动识别仓库类型（bundle 型走官方 dsh plugin add + 激活行；preset 型拷入 .agent-presets）；新增卸载（按安装方式逆向清理）；bundle/preset 双路径与卸载均实测通过。

v1.1.0 One-click install / 一键安装

新增 / New: one-click install & update via same-origin host API (git detection, clone/pull into .agent-presets, clear notice when git is missing); installed badges; default 7-day trending window.