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/Steps/LocationsStep.swift

@@ -49,6 +49,7 @@ struct LocationsStep: View {
                 HStack(spacing: Theme.Spacing.sm) {
                     Image(systemName: "arrow.triangle.2.circlepath")
                         .foregroundStyle(Theme.warmOrange)
+                        .accessibilityHidden(true)
                     Text("Round trip (return to start)")
                         .font(.subheadline)
                         .foregroundStyle(Theme.textPrimary(colorScheme))
@@ -107,6 +108,7 @@ struct LocationsStep: View {
                 HStack {
                     Image(systemName: "mappin.circle.fill")
                         .foregroundStyle(Theme.warmOrange)
+                        .accessibilityHidden(true)
 
                     VStack(alignment: .leading, spacing: 2) {
                         Text(location.name)
@@ -128,6 +130,8 @@ struct LocationsStep: View {
                         Image(systemName: "xmark.circle.fill")
                             .foregroundStyle(Theme.textMuted(colorScheme))
                     }
+                    .minimumHitTarget()
+                    .accessibilityLabel("Clear location")
                 }
                 .padding(Theme.Spacing.sm)
                 .background(Theme.cardBackgroundElevated(colorScheme))
@@ -138,6 +142,7 @@ struct LocationsStep: View {
                     HStack {
                         Image(systemName: "plus.circle")
                             .foregroundStyle(Theme.warmOrange)
+                            .accessibilityLabel("Add location")
 
                         Text(placeholder)
                             .font(.subheadline)
@@ -148,6 +153,7 @@ struct LocationsStep: View {
                         Image(systemName: "chevron.right")
                             .font(.caption)
                             .foregroundStyle(Theme.textMuted(colorScheme))
+                            .accessibilityHidden(true)
                     }
                     .padding(Theme.Spacing.sm)
                     .background(Theme.cardBackgroundElevated(colorScheme))