Refactor runtime bootstrap and ship control flows

apps/backend/Auth/Simulation/RefreshTokenFactory.cs

@@ -0,0 +1,21 @@
+using System.Security.Cryptography;
+using System.Text;
+
+namespace SpaceGame.Api.Auth.Simulation;
+
+public sealed class RefreshTokenFactory
+{
+    public string CreateToken()
+    {
+        Span<byte> bytes = stackalloc byte[32];
+        RandomNumberGenerator.Fill(bytes);
+        return Convert.ToBase64String(bytes);
+    }
+
+    public string HashToken(string token)
+    {
+        using var sha = SHA256.Create();
+        var bytes = sha.ComputeHash(Encoding.UTF8.GetBytes(token));
+        return Convert.ToHexString(bytes);
+    }
+}