add ramdisk, load AI model to ramdisk and start recognition from it

rewrite zmq to DEALER and ROUTER
add GET_USER command to get CurrentUser from Python
all auth is on the python side
inference run and validate annotations on python

Azaion.Common/Extensions/ParallelExt.cs

@@ -24,7 +24,7 @@ public class ParallelExt
                 return Task.CompletedTask;
             }
         };
-        var threadsCount = (int)(Environment.ProcessorCount * parallelOptions.CpuUtilPercent / 100.0);
+        var threadsCount = (int)Math.Round(Environment.ProcessorCount * parallelOptions.CpuUtilPercent / 100.0);
 
         var processedCount = 0;
         var chunkSize = Math.Max(1, (int)(source.Count / (decimal)threadsCount));

Azaion.Common/Extensions/StringExtensions.cs

@@ -0,0 +1,12 @@
+using System.IO;
+
+namespace Azaion.Common.Extensions;
+
+public static class StringExtensions
+{
+    public static string ToFName(this string path) =>
+        Path.GetFileNameWithoutExtension(path).Replace(" ", "");
+
+    public static string ToTimeName(this string fName, TimeSpan? ts) =>
+        $"{fName}_{ts:hmmssf}";
+}