BA Click 0.2.2

• 2026-09-09

Fixed / 修复

• Launch-at-login toggle spawned a second instance / 开关"开机自启"会当场拉起第二个实例： the old LaunchAgent path used launchctl bootstrap, which runs a RunAtLoad job immediately — a second BA Click appeared the moment you toggled on, and bootout killed it again on toggle-off. Bundled apps now register via SMAppService: the entry lives in System Settings → General → Login Items, stays in sync with the system toggle, and registering never starts the app on the spot. The raw-binary (run.sh) fallback registers its LaunchAgent dormant (disable → bootstrap → enable). Legacy (≤0.2.1) plist registrations migrate automatically on the next toggle.
  旧实现的 launchctl bootstrap 会立即运行 RunAtLoad 任务。捆绑版改用 SMAppService（注册进 系统设置 → 通用 → 登录项，绝不当场启动）；裸二进制回退路径改为休眠注册；旧版 plist 注册在下次切换开关时自动迁移。
• Single-instance guard / 新增单实例保护： a flock lock (~/.ba-click-mac.lock) makes any double launch exit immediately — no more stacked overlays, double-drawn effects or racing settings writes.
  flock 锁保证双开时第二个实例立即退出，不再出现两层特效叠加、设置写入竞争。
• Pre-release version suffix broke the update check / 版本比较支持预发布后缀： 0.2.2-beta1 parsed as 0.2 (the -beta1 segment was dropped) so beta builds misreported an update. Version compare is now semver-ish: 0.2.2-beta1 > 0.2.1, but 0.2.2-beta1 < 0.2.2.
  此前 -beta1 后缀段被整体丢弃，测试版会被误报有更新。现按 semver 语义比较：高于更早正式版、低于对应正式版。