Ajoute l Elo et les statistiques de parties

ChessCubing.App/Pages/ChronoPage.razor

@@ -4,6 +4,7 @@
 @inject MatchStore Store
 @inject NavigationManager Navigation
 @inject SocialRealtimeService Realtime
+@inject MatchStatsService MatchStats
 
 <PageTitle>ChessCubing Arena | Phase Chrono</PageTitle>
 <PageBody Page="chrono" BodyClass="@ChronoBodyClass" />
@@ -198,6 +199,8 @@ else if (Match is not null && summary is not null && blackZone is not null && wh
             return;
         }
 
+        await EnsureResultReportedAsync();
+
         _tickerCancellation = new CancellationTokenSource();
         _ = RunTickerAsync(_tickerCancellation.Token);
         StateHasChanged();
@@ -221,6 +224,7 @@ else if (Match is not null && summary is not null && blackZone is not null && wh
     private async Task HandleRealtimeChangedAsync()
     {
         await ApplyCollaborativeSyncAsync();
+        await EnsureResultReportedAsync();
         StateHasChanged();
     }
 
@@ -419,6 +423,7 @@ else if (Match is not null && summary is not null && blackZone is not null && wh
 
     private async Task PersistAndRouteAsync()
     {
+        await EnsureResultReportedAsync();
         Store.MarkDirty();
         await Store.SaveAsync();
 
@@ -437,6 +442,20 @@ else if (Match is not null && summary is not null && blackZone is not null && wh
         StateHasChanged();
     }
 
+    private async Task EnsureResultReportedAsync()
+    {
+        var match = Match;
+        if (match is null || string.IsNullOrWhiteSpace(match.Result) || match.ResultRecordedUtc is not null)
+        {
+            return;
+        }
+
+        if (await MatchStats.TryReportCompletedMatchAsync(match))
+        {
+            Store.MarkDirty();
+        }
+    }
+
     private ChronoSummaryView BuildSummary()
     {
         var match = Match!;