feat: Kisani UI overhaul — brand identity, gallery, visual polish
- Rename app to Kisani (CFBundleDisplayName, xcodeproj → Kisani.xcodeproj)
- BackupView: kisani. wordmark + SwiftUI-drawn server logo mark (no asset,
adaptive ink/bg), 206pt progress ring with active-state glow, 4-page
swipeable ring (progress/pending/failed/uploaded), 4-metric stats strip,
friendly NAS card (Home Server label), hamburger → AppMenuView sheet
- GalleryView: new NAS + local photo grid with source picker chip, 3-col
lazy grid, ThumbnailCache, sync-status dots (green = backed up)
- MainTabView: Browse tab → Gallery tab; tab bar uses ultraThinMaterial
blur background (systemGray3 icons, 9.5pt labels)
- All app icon sizes regenerated from 1024pt source via sips
- LANMonitor: nasReachable Bool?, checkNASReachability(host:port:) TCP ping
- project.yml: photo library usage description updated to Kisani branding
Co-Authored-By: Kutesir <kutesir@provoc.ug>
Co-Authored-By: Sentry <sentry@provoc.ug>
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