fix: improve text contrast for badges, category chips, and separators

- Change attraction category color from .yellow to orange variant for
  readable text in both light and dark mode (QuickAddItemSheet, POIDetailSheet)
- Fix "optional" badge to use textPrimary-based colors for strong contrast
- Bump paywall dashed separator from 0.4 to 0.6 opacity
- Fix SuggestedTripCard bullet separator from textMuted(0.5) to textSecondary

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

SportsTime/Features/Paywall/Views/PaywallView.swift

@@ -66,7 +66,7 @@ struct PaywallView: View {
                 // Dashed ticket perforation separator
                 Line()
                     .stroke(style: StrokeStyle(lineWidth: 1.5, dash: [6, 4]))
-                    .foregroundStyle(Theme.textMuted(colorScheme).opacity(0.4))
+                    .foregroundStyle(Theme.textMuted(colorScheme).opacity(0.6))
                     .frame(height: 1)
                     .padding(.horizontal, Theme.Spacing.lg)
                     .padding(.top, Theme.Spacing.lg)