Add Startup Events to Database

Now emit startup events on conneciton
Some events still to add

Pulsar/Context/Configuration/CargoConfiguration.cs

@@ -0,0 +1,13 @@
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Metadata.Builders;
+using Observatory.Framework.Files.Journal.Startup;
+
+namespace Pulsar.Context.Configuration;
+
+public class CargoConfiguration : IEntityTypeConfiguration<Cargo>
+{
+    public void Configure(EntityTypeBuilder<Cargo> builder)
+    {
+        builder.OwnsMany(c => c.Inventory, c => c.ToJson());
+    }
+}