feat: add WCAG AA accessibility app-wide, fix CloudKit container config, remove debug logs

- Add VoiceOver labels, hints, and element grouping across all 60+ views
- Add Reduce Motion support (Theme.Animation.prefersReducedMotion) to all animations
- Replace fixed font sizes with semantic Dynamic Type styles
- Hide decorative elements from VoiceOver with .accessibilityHidden(true)
- Add .minimumHitTarget() modifier ensuring 44pt touch targets
- Add AccessibilityAnnouncer utility for VoiceOver announcements
- Improve color contrast values in Theme.swift for WCAG AA compliance
- Extract CloudKitContainerConfig for explicit container identity
- Remove PostHog debug console log from AnalyticsManager

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

SportsTime/Features/Trip/Views/Wizard/TripWizardView.swift

@@ -133,7 +133,7 @@ struct TripWizardView: View {
                 }
                 .padding(Theme.Spacing.md)
                 .frame(width: geometry.size.width)
-                .animation(.easeInOut(duration: 0.2), value: viewModel.areStepsVisible)
+                .animation(Theme.Animation.prefersReducedMotion ? .none : .easeInOut(duration: 0.2), value: viewModel.areStepsVisible)
               }
             }
             .themedBackground()