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/ItineraryRows/CustomItemRow.swift

@@ -25,11 +25,13 @@ struct CustomItemRow: View {
                 Image(systemName: "line.3.horizontal")
                     .font(.title3)
                     .foregroundStyle(Theme.textMuted(colorScheme))
+                    .accessibilityLabel("Drag to reorder")
 
                 // Icon and Title
                 if let info = customInfo {
                     Text(info.icon)
                         .font(.title3)
+                        .accessibilityHidden(true)
 
                     Text(info.title)
                         .font(.body)
@@ -47,6 +49,7 @@ struct CustomItemRow: View {
             }
             .padding(.vertical, Theme.Spacing.sm)
             .padding(.horizontal, Theme.Spacing.md)
+            .accessibilityElement(children: .combine)
         }
         .buttonStyle(.plain)
     }