fix: Windows兼容 + Textual 8.x + MD3 SVG图标替代emoji

1. Windows: reuse_port 仅非win32平台启用
2. Textual 8.2.7: refresh() 加 **kwargs 兼容 repaint 参数
3. WebUI: 设置页/插件页 emoji → SVG (fill:currentColor 日夜间适配)

Co-Authored-By: Claude <noreply@anthropic.com>

config/plugins/commands.yaml

@@ -101,7 +101,7 @@ commands:
     permissions:
     - framework.command.test
     source: internal
-last_updated: 35916.559043798
+last_updated: 36350.43103134
 plugin_commands:
   example_plugin:
     echo: *id001