Added search cache estimation, added search cache clearing

src/Shared/Models/SearchdomainResults.cs

@@ -65,4 +65,25 @@ public class SearchdomainSettingsResults
 
     [JsonPropertyName("Settings")]
     public required SearchdomainSettings? Settings { get; set; }
+}
+
+public class SearchdomainSearchCacheSizeResults
+{
+    [JsonPropertyName("Success")]
+    public required bool Success { get; set; }
+
+    [JsonPropertyName("Message")]
+    public string? Message { get; set; }
+
+    [JsonPropertyName("SearchCacheSizeBytes")]
+    public required long? SearchCacheSizeBytes { get; set; }
+}
+
+public class SearchdomainInvalidateCacheResults
+{
+    [JsonPropertyName("Success")]
+    public required bool Success { get; set; }
+
+    [JsonPropertyName("Message")]
+    public string? Message { get; set; }
 }