The ShapeStyle where Self == Color extension duplicated Color statics,
causing 'ambiguous use' errors in foregroundStyle/stroke/tint/background
contexts. Removed the extension entirely and use explicit Color.xxx prefix
at all call sites instead.
- App icon now uses white bg + PAYFRIT text + bluetooth beacon icon (matches Android)
- AccentColor set to Payfrit Green (#22B24B)
- Added BrandColors.swift with full Android color palette parity
- All views updated: payfritGreen replaces .blue, proper status colors throughout
- Signal strength, beacon type badges, QR scanner corners all use brand colors
- DevBanner uses warningOrange matching Android's #FF9800
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>