* docs(replace): replace sandpack demos with code blocks in customize-theme.en-US.md
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
* docs: update demo paths in theme customization docs
* docs: add first example demo and update documentation
* docs(demo): add Radio component to disable-motion example
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
* fix(demo): initialize timerRef with null for proper typing
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>