fixed whisparr v3 preview minimum version message

code/backend/Cleanuparr.Api/Features/Seeker/Controllers/SeekerPreviewController.cs

@@ -111,7 +111,8 @@ public sealed class SeekerPreviewController : ControllerBase
 
         if (evaluation.WantedUnsupported)
         {
-            return this.ProblemResult(StatusCodes.Status502BadGateway, "Seeker needs Radarr v5.6 or newer");
+            string minimumVersion = instanceType is InstanceType.Radarr ? "Radarr v5.6" : "Whisparr v3.1";
+            return this.ProblemResult(StatusCodes.Status502BadGateway, $"Seeker needs {minimumVersion} or newer");
         }
 
         DateTimeOffset? waitingUntil = null;

code/backend/Cleanuparr.Infrastructure/Features/Seeker/SeekerEvaluation.cs

@@ -10,7 +10,7 @@ public sealed record SeekerEvaluation
     public required List<long> AllLibraryIds { get; init; }
 
     /// <summary>
-    /// Radarr older than v5.6 has no wanted endpoints, so nothing got evaluated.
+    /// Radarr older than v5.6 and Whisparr v3 older than v3.1 have no wanted endpoints, so nothing got evaluated.
     /// </summary>
     public bool WantedUnsupported { get; init; }