v1.1.2

新增：内置图床新增 ImgLa
改进：图床上传流程与配置存储调整（手动上传 / S3 / ImgLa）
改进：大纲支持自动隐藏/展开；大纲布局菜单文案/图标优化，并增加菜单标题提示
改进：内置插件「图床相册」更新：支持预览；适配内置图床（含 ImgLa）

Added: Built-in image host: ImgLa uploader
Improved: Image upload flow and config storage (manual upload / S3 / ImgLa)
Improved: Outline auto hide/expand; refined outline layout copy and icons, plus a menu title hint
Improved: Built-in “Image Gallery” plugin: preview support; works with built-in image hosts (including ImgLa)