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>

SportsTimeTests/Features/Polls/PollVotingViewModelTests.swift

@@ -0,0 +1,71 @@
+import Testing
+import Foundation
+@testable import SportsTime
+
+@Suite("PollVotingViewModel")
+@MainActor
+struct PollVotingViewModelTests {
+
+    @Test("initializeRankings defaults to original trip order")
+    func initializeRankings_defaultOrder() {
+        let viewModel = PollVotingViewModel()
+
+        viewModel.initializeRankings(tripCount: 5, existingVote: nil)
+
+        #expect(viewModel.rankings == [0, 1, 2, 3, 4])
+    }
+
+    @Test("initializeRankings uses existing vote order")
+    func initializeRankings_existingVoteOrder() {
+        let viewModel = PollVotingViewModel()
+        let existingVote = PollVote(
+            pollId: UUID(),
+            odg: "user_123",
+            rankings: [2, 0, 3, 1]
+        )
+
+        viewModel.initializeRankings(tripCount: 4, existingVote: existingVote)
+
+        #expect(viewModel.rankings == [2, 0, 3, 1])
+    }
+
+    @Test("moveTripUp swaps with previous item")
+    func moveTripUp_swapsWithPrevious() {
+        let viewModel = PollVotingViewModel()
+        viewModel.rankings = [0, 1, 2, 3]
+
+        viewModel.moveTripUp(at: 2)
+
+        #expect(viewModel.rankings == [0, 2, 1, 3])
+    }
+
+    @Test("moveTripDown swaps with next item")
+    func moveTripDown_swapsWithNext() {
+        let viewModel = PollVotingViewModel()
+        viewModel.rankings = [0, 1, 2, 3]
+
+        viewModel.moveTripDown(at: 1)
+
+        #expect(viewModel.rankings == [0, 2, 1, 3])
+    }
+
+    @Test("moveTripUp is no-op at first index")
+    func moveTripUp_firstIndexNoOp() {
+        let viewModel = PollVotingViewModel()
+        viewModel.rankings = [0, 1, 2]
+
+        viewModel.moveTripUp(at: 0)
+
+        #expect(viewModel.rankings == [0, 1, 2])
+    }
+
+    @Test("moveTripDown is no-op at last index")
+    func moveTripDown_lastIndexNoOp() {
+        let viewModel = PollVotingViewModel()
+        viewModel.rankings = [0, 1, 2]
+
+        viewModel.moveTripDown(at: 2)
+
+        #expect(viewModel.rankings == [0, 1, 2])
+    }
+}