Readest v0.9.117

\n## 更新下载\n\n- Windows 安装包（x64）：[Readest_0.9.117_x64-setup.exe](https://github.com/pscly/readest/releases/download/v0.9.117/Readest_0.9.117_x64-setup.exe)\n- Windows 便携版（x64）：[Readest_0.9.117_x64-portable.exe](https://github.com/pscly/readest/releases/download/v0.9.117/Readest_0.9.117_x64-portable.exe)\n- Android（通用）：[Readest_0.9.117_universal.apk](https://github.com/pscly/readest/releases/download/v0.9.117/Readest_0.9.117_universal.apk)\n- Android（ARM64）：[Readest_0.9.117_arm64.apk](https://github.com/pscly/readest/releases/download/v0.9.117/Readest_0.9.117_arm64.apk)\n- Linux（AppImage x86_64）：[Readest_0.9.117_amd64.AppImage](https://github.com/pscly/readest/releases/download/v0.9.117/Readest_0.9.117_amd64.AppImage)\n\n> 其他平台/签名文件请展开下方 Assets。\n\n\n## Release Highlight

• Mobile: Stop forcing cloud sign-in when the session is missing (no more login pop-ups on startup)
• Mobile: Default sync backend is now WebDAV
• UI: WebDAV sync runs in the background without blocking the library UI

Full Changelog: v0.9.116...v0.9.117\n