cat2151/smf-to-ym2151log-rust

AI Summary: This issue aims to translate the `copilot-instructions.md` file into Japanese and update its content to reflect the latest information relevant to the project. Additionally, it requests the inclusion of documentation clarifying the project's deployment structure to prevent common 404 errors, especially when deploying to platforms like GitHub Pages.

AI Summary: Implement a reusable log JSON visualization area for each demo. This area will be a horizontal piano-roll-like display with separate lanes for each channel, drawing events pixel-by-pixel, color-coded, and reflecting their timing. Key features include zoom, scroll, and event detail display, with considerations for GUI library choice, real-time updates, and performance with large datasets.