Made a lot of changes. Enhanced memory usage.

Models/Model/Backend/CustomProtocolType.cs

@@ -0,0 +1,6 @@
+namespace Models.Model.Backend;
+
+public enum CustomProtocolType
+{
+    Icmp = 1
+}

Models/Model/Backend/DatabaseSizes.cs

@@ -1,10 +0,0 @@
-namespace Models.Model.Backend;
-
-public struct DatabaseSizes
-{
-    public double DiscardedDbSize { get; set; }
-    
-    public double FilteredDbSize { get; set; }
-    
-    public double MyDbSize { get; set; }
-}

Models/Model/Backend/FilterQueueItem.cs

@@ -2,6 +2,6 @@ namespace Models.Model.Backend;
 
 public struct FilterQueueItem
 {
-    public Ip Ip { get; init; }
-    public int ResponseCode { get; init; }
+    public Ip Ip { get; set; }
+    public int ResponseCode { get; set; }
 }

Models/Model/Backend/RuntimeVariable.cs

@@ -1,9 +0,0 @@
-namespace Models.Model.Backend;
-
-public enum RuntimeVariable
-{
-    DbContent,
-    DbDiscarded,
-    ContentFilter,
-    ScannerTimeout
-}

Models/Model/Backend/SizeUnits.cs

@@ -1,8 +0,0 @@
-namespace Models.Model.Backend;
-public enum SizeUnits
-{
-    Byte,
-    KB,
-    MB,
-    GB,
-}