Replaced Tauri icon source (icon.png) with new 1024px wheat-stalk
mark on dark background. Regenerated all platform variants via
`tauri icon`: macOS .icns, Windows .ico, Linux PNGs, iOS AppIcon
set, Android adaptive icon foregrounds.
Web: PWA manifest icons (192/512) and apple-touch-icon now use the
new logo. Browser-tab favicon (favicon.svg) unchanged — keeps the
theme-aware wheat mark.
Tauri app: 0.5.1 → 0.5.2.
Wraps the web app in a Tauri Android shell that provides native GPS
via the geolocation plugin. Includes foreground service for background
tracking, live map display, GPS data storage in workout sessions,
and route visualization in workout history.
Alexander
