Refactor runtime bootstrap and ship control flows

apps/backend/Auth/Simulation/DevAuthSeeder.cs

@@ -0,0 +1,33 @@
+using Microsoft.Extensions.Hosting;
+using Microsoft.Extensions.Options;
+
+namespace SpaceGame.Api.Auth.Simulation;
+
+public sealed class DevAuthSeeder(
+    IHostEnvironment hostEnvironment,
+    IOptions<AuthOptions> authOptions,
+    IAuthRepository authRepository,
+    LocalPasswordHasher passwordHasher)
+{
+    public async Task SeedAsync(CancellationToken cancellationToken)
+    {
+        if (!hostEnvironment.IsDevelopment())
+        {
+            return;
+        }
+
+        foreach (var seedUser in authOptions.Value.DevSeedUsers)
+        {
+            if (string.IsNullOrWhiteSpace(seedUser.Email) || string.IsNullOrWhiteSpace(seedUser.Password))
+            {
+                continue;
+            }
+
+            await authRepository.UpsertUserAsync(
+              seedUser.Email.Trim().ToLowerInvariant(),
+              passwordHasher.HashPassword(seedUser.Password),
+              seedUser.Roles,
+              cancellationToken);
+        }
+    }
+}