feat(anomaly): suspension-freeze detector

- Add SuspensionFreezeDetector via the IAnomalyDetector seam: a suspension gap with
  the favourite unchanged and a negligible (< threshold) price move — the mirror of
  the flip. Score = how completely the line froze. Reuses MatchWinEvidence so UI +
  evaluator handle it unchanged. 6 tests.
- Add AnomalyKind.SuspensionFreeze + localized card/detail label, SuspensionFreezeThreshold
  option, and fan it into DetectAnomaliesUseCase.

src/Marathon.UI/Components/AnomalyCard.razor

@@ -211,9 +211,10 @@
 
     private string KindLabel(AnomalyKind kind) => kind switch
     {
-        AnomalyKind.SuspensionFlip => L["Anomaly.Kind.SuspensionFlip"],
-        AnomalyKind.SteamMove      => L["Anomaly.Kind.SteamMove"],
-        _                          => kind.ToString(),
+        AnomalyKind.SuspensionFlip   => L["Anomaly.Kind.SuspensionFlip"],
+        AnomalyKind.SteamMove        => L["Anomaly.Kind.SteamMove"],
+        AnomalyKind.SuspensionFreeze => L["Anomaly.Kind.SuspensionFreeze"],
+        _                            => kind.ToString(),
     };
 
     private string SportLabel(int code) => SportLabels.Resolve(L, code);

src/Marathon.UI/Pages/Anomalies/Detail.razor

@@ -105,9 +105,10 @@
 
     private string KindLabel(AnomalyKind kind) => kind switch
     {
-        AnomalyKind.SuspensionFlip => L["Anomaly.Kind.SuspensionFlip"],
-        AnomalyKind.SteamMove      => L["Anomaly.Kind.SteamMove"],
-        _                          => kind.ToString(),
+        AnomalyKind.SuspensionFlip   => L["Anomaly.Kind.SuspensionFlip"],
+        AnomalyKind.SteamMove        => L["Anomaly.Kind.SteamMove"],
+        AnomalyKind.SuspensionFreeze => L["Anomaly.Kind.SuspensionFreeze"],
+        _                            => kind.ToString(),
     };
 
     private static string FormatGap(int seconds)

src/Marathon.UI/Resources/SharedResource.en.resx

@@ -167,6 +167,7 @@
   <data name="Anomaly.Live"><value>Anomaly</value></data>
   <data name="Anomaly.Kind.SuspensionFlip"><value>Suspension flip</value></data>
   <data name="Anomaly.Kind.SteamMove"><value>Steam move</value></data>
+  <data name="Anomaly.Kind.SuspensionFreeze"><value>Suspension freeze</value></data>
   <data name="Anomaly.Score"><value>Confidence</value></data>
 
   <!-- Phase 7 — Anomaly feed UI -->

src/Marathon.UI/Resources/SharedResource.ru.resx

@@ -180,6 +180,7 @@
   <data name="Anomaly.Live"><value>Аномалия</value></data>
   <data name="Anomaly.Kind.SuspensionFlip"><value>Разворот после заморозки</value></data>
   <data name="Anomaly.Kind.SteamMove"><value>Движение линии</value></data>
+  <data name="Anomaly.Kind.SuspensionFreeze"><value>Заморозка линии</value></data>
   <data name="Anomaly.Score"><value>Уверенность</value></data>
 
   <!-- Phase 7 — Лента аномалий -->