Implement standard rendering and interaction for checkbox and radio button controls#307

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Copilot wants to merge 3 commits intomainfrom

copilot/fix-306

Commits on Sep 13, 2025

Initial plan
Copilot
committed
Implement checkbox/radio visual rendering and interaction

Copilot
and
EndlessJour9527
committed
Add focus state support and comprehensive demos for checkbox/radio controls

Copilot
and
EndlessJour9527
committed