added functionality to save/move tokenizer file

app/MindWork AI Studio/Tools/Validation/ProviderValidation.cs

@@ -22,6 +22,8 @@ public sealed class ProviderValidation
 
     public Func<bool> IsModelProvidedManually { get; init; } = () => false;
 
+    public Func<string> GetCustomTokenizerValidationIssue { get; init; } = () => string.Empty;
+
     public string? ValidatingHostname(string hostname)
     {
         if(this.GetProvider() != LLMProviders.SELF_HOSTED)
@@ -120,4 +122,13 @@ public sealed class ProviderValidation
 
         return null;
     }
-}
+    
+    public string? ValidatingCustomTokenizer(string _)
+    {
+        var issue = this.GetCustomTokenizerValidationIssue();
+        if (string.IsNullOrWhiteSpace(issue))
+            return null;
+
+        return issue;
+    }
+}