feat: 项目初始化 + 3D方块世界原型 + AI助搭系统

初始化 monorepo: Go后端(7微服务) + Unity客户端(9模块) + 启动器

HTML5原型: Three.js 3D体素世界, Perlin噪声地形, 原版材质, 22种方块

Minecraft创造模式背包: 双栏布局, 拖拽移动物品, 方向性元件引脚

AI助搭策划文档 + 客户端/服务端骨架 + Docker Compose + CI

launcher/PCL-CE/Plain Craft Launcher 2/Controls/MyRadioBox.xaml

@@ -0,0 +1,15 @@
+<Grid x:Class="PCL.MyRadioBox"
+      xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+      xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+      FocusVisualStyle="{x:Null}"
+      MinWidth="20" x:Name="PanBack" UseLayoutRounding="False" SnapsToDevicePixels="False" MinHeight="20"
+      Background="{StaticResource ColorBrushSemiTransparent}" Focusable="True">
+    <TextBlock IsHitTestVisible="False" x:Name="LabText" FontSize="13" Padding="0" Margin="26,0,0,0"
+               Foreground="{DynamicResource ColorBrush1}" HorizontalAlignment="Left" VerticalAlignment="Center" />
+    <Ellipse IsHitTestVisible="False" x:Name="ShapeBorder" StrokeThickness="1.1" HorizontalAlignment="Left"
+             VerticalAlignment="Center" Width="18" Height="18" Stroke="{DynamicResource ColorBrush1}" Margin="1,0,0,0"
+             Fill="{DynamicResource ColorBrushHalfWhite}" />
+    <Ellipse IsHitTestVisible="False" x:Name="ShapeDot" HorizontalAlignment="Left" VerticalAlignment="Center"
+             Fill="{Binding Stroke, ElementName=ShapeBorder}" Width="0" Height="0" Margin="10,0,0,0"
+             StrokeThickness="0" />
+</Grid>