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/Core/Theme/Loading/LoadingPlaceholder.swift

@@ -47,7 +47,9 @@ struct PlaceholderRectangle: View {
             .fill(placeholderColor)
             .frame(width: width, height: height)
             .opacity(isAnimating ? LoadingPlaceholder.maxOpacity : LoadingPlaceholder.minOpacity)
+            .accessibilityHidden(true)
             .onAppear {
+                guard !Theme.Animation.prefersReducedMotion else { return }
                 withAnimation(.easeInOut(duration: LoadingPlaceholder.animationDuration).repeatForever(autoreverses: true)) {
                     isAnimating = true
                 }
@@ -72,7 +74,9 @@ struct PlaceholderCircle: View {
             .fill(placeholderColor)
             .frame(width: diameter, height: diameter)
             .opacity(isAnimating ? LoadingPlaceholder.maxOpacity : LoadingPlaceholder.minOpacity)
+            .accessibilityHidden(true)
             .onAppear {
+                guard !Theme.Animation.prefersReducedMotion else { return }
                 withAnimation(.easeInOut(duration: LoadingPlaceholder.animationDuration).repeatForever(autoreverses: true)) {
                     isAnimating = true
                 }
@@ -98,7 +102,9 @@ struct PlaceholderCapsule: View {
             .fill(placeholderColor)
             .frame(width: width, height: height)
             .opacity(isAnimating ? LoadingPlaceholder.maxOpacity : LoadingPlaceholder.minOpacity)
+            .accessibilityHidden(true)
             .onAppear {
+                guard !Theme.Animation.prefersReducedMotion else { return }
                 withAnimation(.easeInOut(duration: LoadingPlaceholder.animationDuration).repeatForever(autoreverses: true)) {
                     isAnimating = true
                 }
@@ -145,7 +151,10 @@ struct PlaceholderCard: View {
             RoundedRectangle(cornerRadius: Theme.CornerRadius.large)
                 .stroke(Theme.surfaceGlow(colorScheme), lineWidth: 1)
         }
+        .accessibilityElement(children: .ignore)
+        .accessibilityLabel("Loading content")
         .onAppear {
+            guard !Theme.Animation.prefersReducedMotion else { return }
             withAnimation(.easeInOut(duration: LoadingPlaceholder.animationDuration).repeatForever(autoreverses: true)) {
                 isAnimating = true
             }
@@ -185,6 +194,7 @@ struct PlaceholderListRow: View {
         }
         .padding(Theme.Spacing.md)
         .onAppear {
+            guard !Theme.Animation.prefersReducedMotion else { return }
             withAnimation(.easeInOut(duration: LoadingPlaceholder.animationDuration).repeatForever(autoreverses: true)) {
                 isAnimating = true
             }

SportsTime/Core/Theme/Loading/LoadingSheet.swift

@@ -25,10 +25,11 @@ struct LoadingSheet: View {
             // Dimmed background
             Color.black.opacity(Self.backgroundOpacity)
                 .ignoresSafeArea()
+                .accessibilityHidden(true)
 
             // Centered card
             VStack(spacing: Theme.Spacing.lg) {
-                LoadingSpinner(size: .large)
+                LoadingSpinner(size: .large, label: label)
 
                 VStack(spacing: Theme.Spacing.xs) {
                     Text(label)

SportsTime/Core/Theme/Loading/LoadingSpinner.swift

@@ -56,6 +56,7 @@ struct LoadingSpinner: View {
                     .foregroundStyle(Theme.textSecondary(colorScheme))
             }
         }
+        .accessibilityLabel(label ?? "Loading")
     }
 
     private var spinnerView: some View {
@@ -63,15 +64,18 @@ struct LoadingSpinner: View {
             // Background track - subtle gray like Apple's native spinner
             Circle()
                 .stroke(Color.secondary.opacity(0.2), lineWidth: size.strokeWidth)
+                .accessibilityHidden(true)
 
             // Rotating arc (270 degrees) - gray like Apple's ProgressView
             Circle()
                 .trim(from: 0, to: 0.75)
                 .stroke(Color.secondary, style: StrokeStyle(lineWidth: size.strokeWidth, lineCap: .round))
                 .rotationEffect(.degrees(rotation))
+                .accessibilityHidden(true)
         }
         .frame(width: size.diameter, height: size.diameter)
         .onAppear {
+            guard !Theme.Animation.prefersReducedMotion else { return }
             withAnimation(.linear(duration: 1).repeatForever(autoreverses: false)) {
                 rotation = 360
             }