Fix video autoplay reliability, add shuffle playback, refresh data on appear

- Remove cache expiry on video feed (fetch once, keep for session)
- Add retry logic (3 attempts with backoff) for autoplay resolution
- Replace random video selection with shuffle-bag (no repeats until all played)
- Reload games every time DashboardView appears
- Cache standings per day to avoid redundant fetches

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

mlbTVOS/Views/DashboardView.swift

@@ -150,6 +150,7 @@ struct DashboardView: View {
         .onAppear {
             logDashboard("DashboardView appeared")
             viewModel.startAutoRefresh()
+            Task { await viewModel.loadGames() }
         }
         .onDisappear {
             logDashboard("DashboardView disappeared")
@@ -265,11 +266,20 @@ struct DashboardView: View {
         guard selection.broadcast.id == SpecialPlaybackChannelConfig.werkoutNSFWStreamID else {
             return nil
         }
-        guard let nextURL = await viewModel.resolveAuthenticatedVideoFeedURL(
-            feedURL: SpecialPlaybackChannelConfig.werkoutNSFWFeedURL,
-            headers: SpecialPlaybackChannelConfig.werkoutNSFWHeaders,
-            excluding: currentURL
-        ) else {
+        var nextURL: URL?
+        for attempt in 1...3 {
+            nextURL = await viewModel.resolveAuthenticatedVideoFeedURL(
+                feedURL: SpecialPlaybackChannelConfig.werkoutNSFWFeedURL,
+                headers: SpecialPlaybackChannelConfig.werkoutNSFWHeaders,
+                excluding: currentURL
+            )
+            if nextURL != nil { break }
+            logDashboard("resolveNextFullScreenSource retry attempt=\(attempt)/3")
+            if attempt < 3 {
+                try? await Task.sleep(nanoseconds: UInt64(attempt) * 500_000_000)
+            }
+        }
+        guard let nextURL else {
             return nil
         }
         return SingleStreamPlaybackSource(