Make vault storages work

Bitvault/VaultDbContext.cs

@@ -0,0 +1,13 @@
+using Microsoft.EntityFrameworkCore;
+
+namespace Bitvault;
+
+public class VaultDbContext: DbContext
+{
+    public DbSet<Locker> Lockers { get; set; }
+
+    public VaultDbContext(DbContextOptions<VaultDbContext> options): base(options)
+    {
+
+    }
+}