feat: resolve typed legacy probe overlays

Launcher.Next.Core/LauncherPaths.cs

@@ -29,6 +29,7 @@ public sealed record ResolvedCatalogRoot
 }
 public sealed record ResolvedLegacySettingsPath { internal ResolvedLegacySettingsPath(string value) => Value=value; public string Value { get; } }
 public sealed record ResolvedLegacyDownloadListPath { internal ResolvedLegacyDownloadListPath(string value) => Value=value; public string Value { get; } }
+public sealed record ResolvedLegacyCompatibilityOverlayPath { internal ResolvedLegacyCompatibilityOverlayPath(string value) => Value=value; public string Value { get; } }
 public sealed record ResolvedLegacyProbeEvidenceRoot { internal ResolvedLegacyProbeEvidenceRoot(string value) => Value=value; public string Value { get; } }
 
 public interface IPathResolver
@@ -38,6 +39,7 @@ public interface IPathResolver
     ResolvedCatalogRoot ResolveCatalogRoot(LauncherPathVariables variables);
     ResolvedLegacySettingsPath ResolveLegacySettingsPath(LauncherPathVariables variables);
     ResolvedLegacyDownloadListPath ResolveLegacyDownloadListPath(LauncherPathVariables variables);
+    ResolvedLegacyCompatibilityOverlayPath ResolveLegacyCompatibilityOverlayPath(LauncherPathVariables variables);
     ResolvedLegacyProbeEvidenceRoot ResolveLegacyProbeEvidenceRoot(LauncherPathVariables variables);
 }
 
@@ -100,6 +102,7 @@ public sealed class PathResolver(IReadOnlyDictionary<string, string?>? environme
     }
     public ResolvedLegacySettingsPath ResolveLegacySettingsPath(LauncherPathVariables variables) => new(ResolveExistingFile("LegacySettingsPath", variables));
     public ResolvedLegacyDownloadListPath ResolveLegacyDownloadListPath(LauncherPathVariables variables) => new(ResolveExistingFile("LegacyDownloadListPath", variables));
+    public ResolvedLegacyCompatibilityOverlayPath ResolveLegacyCompatibilityOverlayPath(LauncherPathVariables variables) => new(ResolveExistingFile("LegacyCompatibilityOverlayPath", variables));
     public ResolvedLegacyProbeEvidenceRoot ResolveLegacyProbeEvidenceRoot(LauncherPathVariables variables)
     {
         var value=ResolvePath(Resolve(variables,["LegacyProbeEvidenceRoot"]).Require("LegacyProbeEvidenceRoot"),variables);