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add detailed Google map tile layers and update basemap options
refactor(ui): remove Button, Input, Badge components and replace usage with native elements
feat(map): add historical basemap compare feature with opacity and side-by-side modes
feat(map): add horizontal split for compare divider on narrow viewports
feat(map): add responsive collapsible compare control panel
feat(map): add heatmap, minimap, and edge signpost markers with leaflet plugins
add Leaflet-based map entry with markers and basemap switcher
add Storybook 10 setup with GitHub Pages deployment