Show full playoff bracket, mark series results, harden API decoding

Playoffs:
- List every round played so far (Round 1 → current) instead of only the
  current round, on both macOS menu and iPhone
- Strike through the eliminated team's tricode in a finished series and drop
  the now-redundant "(Final … wins)" tag on completed earlier rounds
- Refetch the bracket when a finished game implies more completed games than
  the cached bracket records, so the series score and round no longer get
  stuck on stale data after cold launch or the NHL bracket endpoint's lag

API robustness:
- Tolerate optional gameCenterLink/startTimeUTC on TBD playoff matchups so the
  scoreboard decode no longer aborts
- Reject API state regressions via a monotonic FUT→…→OFF progression rank so a
  brief glitch can't downgrade a finished game back to "-:-"

IceGlass-iOS/Views/GameRow.swift

@@ -106,7 +106,8 @@ struct GameRow: View {
     }
 
     private func open() {
-        guard let url = URL(string: game.gameCenterUrl) else { return }
+        guard let urlString = game.gameCenterUrl,
+              let url = URL(string: urlString) else { return }
         UIApplication.shared.open(url)
     }
 }

IceGlass-iOS/Views/MainView.swift

@@ -21,17 +21,21 @@ struct MainView: View {
                     )
                     .padding(.horizontal)
 
-                    if !viewModel.currentRoundSeriesItems.isEmpty,
-                       let round = viewModel.currentRoundNumber {
-                        PlayoffRoundSection(
-                            round: round,
-                            items: viewModel.currentRoundSeriesItems
-                        )
-                        .padding(.horizontal)
+                    let roundGroups = viewModel.roundSeriesGroups
+                    let latestRound = roundGroups.last?.round
+                    ForEach(roundGroups, id: \.round) { group in
+                        if !group.items.isEmpty {
+                            PlayoffRoundSection(
+                                round: group.round,
+                                items: group.items,
+                                showStatus: group.round == latestRound
+                            )
+                            .padding(.horizontal)
+                        }
                     }
 
                     let gameDays = viewModel.gamesByDate
-                    if gameDays.isEmpty && viewModel.currentRoundSeriesItems.isEmpty {
+                    if gameDays.isEmpty && roundGroups.isEmpty {
                         emptyState
                             .padding(.horizontal)
                             .padding(.top, 40)

IceGlass-iOS/Views/PlayoffRoundSection.swift

@@ -10,6 +10,7 @@ import SwiftUI
 struct PlayoffRoundSection: View {
     let round: Int
     let items: [MainService.RoundSeriesItem]
+    var showStatus: Bool = true
 
     var body: some View {
         VStack(alignment: .leading, spacing: 8) {
@@ -20,7 +21,7 @@ struct PlayoffRoundSection: View {
 
             VStack(spacing: 0) {
                 ForEach(items, id: \.series.seriesLetter) { item in
-                    SeriesRow(item: item)
+                    SeriesRow(item: item, showStatus: showStatus)
                     if item.series.seriesLetter != items.last?.series.seriesLetter {
                         Divider()
                     }

IceGlass-iOS/Views/SeriesRow.swift

@@ -9,6 +9,9 @@ import SwiftUI
 
 struct SeriesRow: View {
     let item: MainService.RoundSeriesItem
+    /// Completed earlier rounds hide the status/next-game column; the struck-out
+    /// loser already conveys the result.
+    var showStatus: Bool = true
 
     private static let logoSize: CGFloat = 40
 
@@ -17,7 +20,9 @@ struct SeriesRow: View {
             HStack(alignment: .center, spacing: 10) {
                 matchupBlock
                 Spacer(minLength: 8)
-                rightContent
+                if showStatus {
+                    rightContent
+                }
             }
             .padding(.horizontal, 14)
             .padding(.vertical, 8)
@@ -34,6 +39,7 @@ struct SeriesRow: View {
             Text(bottom)
                 .font(.title3.monospaced())
                 .fontWeight(.semibold)
+                .strikethrough(item.series.loser == bottom)
                 .foregroundStyle(.primary)
                 .lineLimit(1)
                 .fixedSize()
@@ -47,6 +53,7 @@ struct SeriesRow: View {
             Text(top)
                 .font(.title3.monospaced())
                 .fontWeight(.semibold)
+                .strikethrough(item.series.loser == top)
                 .foregroundStyle(.primary)
                 .lineLimit(1)
                 .fixedSize()