Add agent balance fetch from proxy

src/Managing.Infrastructure.Database/Migrations/ManagingDbContextModelSnapshot.cs

@@ -90,6 +90,10 @@ namespace Managing.Infrastructure.Databases.Migrations
                     b.Property<DateTime?>("Runtime")
                         .HasColumnType("timestamp with time zone");
 
+                    b.Property<decimal>("TotalBalance")
+                        .HasPrecision(18, 8)
+                        .HasColumnType("numeric(18,8)");
+
                     b.Property<decimal>("TotalPnL")
                         .HasColumnType("decimal(18,8)");