Create runtime variables and remove MessagePack.

Backend/Helper/FilesystemHelper.cs

@@ -4,24 +4,24 @@ namespace Backend.Helper;
 
 public static class FilesystemHelper
 {
-    public static DatabaseSizes GetDatabaseSizes()
+    public static DatabaseSizes GetDatabaseSizes(string basePath)
     {
         DatabaseSizes databaseSizes = new();
         
-        FileInfo fileInfo = new("../../../../Models/mydb.db");
+        FileInfo fileInfo = new($"{basePath}/Models/mydb.db");
         databaseSizes.MyDbSize = fileInfo.Length.ToSize(SizeUnits.KB);
         
-        databaseSizes.DiscardedDbSize = GetDiscardedDbSizes().ToSize(SizeUnits.KB);
+        databaseSizes.DiscardedDbSize = GetDiscardedDbSizes(basePath).ToSize(SizeUnits.KB);
         
-        fileInfo = new("../../../../Models/Filtered.db");
+        fileInfo = new($"{basePath}/Models/Filtered.db");
         databaseSizes.FilteredDbSize = fileInfo.Length.ToSize(SizeUnits.KB);
         
         return databaseSizes;
     }
 
-    private static long GetDiscardedDbSizes()
+    private static long GetDiscardedDbSizes(string basePath)
     {
-        const string folder = "../../../../Models";
+        string folder = $"{basePath}/Models";
         string[] files = Directory.GetFiles(folder, "*.db");
         
         long size = 0;

Backend/Helper/ProjectPathHelper.cs

@@ -0,0 +1,9 @@
+namespace Backend.Helper;
+
+public static class ProjectPathHelper
+{
+    public static string GetProjectPath()
+    {
+        return new DirectoryInfo(AppDomain.CurrentDomain.BaseDirectory).Parent!.Parent!.Parent!.Parent!.FullName;
+    }
+}