refactor(activity): 重构 MasterScaleActivity 多类型秤布局，新增 Scale22GridActivity

- MasterScaleActivity 使用 BaseMultiItemAdapter 支持4种 viewType（scale1/2/18/22）
- 内嵌 adapter 改用 BaseQuickAdapter + 自定义 VH，替换原 RecyclerView.Adapter
- 新增 Scale22GridActivity，使用 FlexboxLayoutManager 实现22格混合网格布局
- 新增 list_type_scale1/2/18/22.xml 及 list_item_scale22_row.xml 布局文件
- 删除废弃的 list_item_scale_data.xml
- 新增 flexbox 依赖，注册 Scale22GridActivity

gradle/libs.versions.toml

@@ -31,6 +31,7 @@ refreshHeaderClassics = "3.0.0-alpha"
 refreshHeaderRadar = "3.0.0-alpha"
 roomRuntime = "2.5.2"
 java-websocket = "1.5.7"
+flexbox = "3.0.0"
 
 [libraries]
 android-core = { module = "com.google.zxing:android-core", version.ref = "androidCore" }
@@ -77,6 +78,7 @@ refresh-header-classics = { module = "io.github.scwang90:refresh-header-classics
 refresh-layout-kernel = { module = "io.github.scwang90:refresh-layout-kernel", version.ref = "refreshLayoutKernel" }
 retrofit = { module = "com.squareup.retrofit2:retrofit", version.ref = "converterGson" }
 java-websocket = { module = "org.java-websocket:Java-WebSocket", version.ref = "java-websocket" }
+flexbox = { module = "com.google.android.flexbox:flexbox", version.ref = "flexbox" }
 
 [plugins]
 android-application = { id = "com.android.application", version.ref = "agp" }