Add SingleUserRecipe for seeding a single known user

util/Seeder/Recipes/SingleUserRecipe.cs

@@ -0,0 +1,29 @@
+using Bit.Core.Enums;
+using Bit.Infrastructure.EntityFramework.Repositories;
+using Bit.Seeder.Factories;
+
+namespace Bit.Seeder.Recipes;
+
+public class SingleUserRecipe(DatabaseContext db)
+{
+    public Dictionary<string, string?> Seed(string email)
+    {
+        var userSeeder = new UserSeeder(Guid.NewGuid());
+        var user = userSeeder.CreateUser(email);
+
+        db.Add(user);
+        db.SaveChanges();
+
+        return userSeeder.GetMangleMap(user, new UserData
+        {
+            Email = email,
+            Id = Guid.Parse("00000000-0000-0000-0000-000000000001"),
+            Key = "seeded_key",
+            PublicKey = "seeded_public_key",
+            PrivateKey = "seeded_private_key",
+            ApiKey = "seeded_api_key",
+            Kdf = KdfType.PBKDF2_SHA256,
+            KdfIterations = 600_000,
+        });
+    }
+}