feat(admincli): add command for creating a user

src/FiscalOS.AdminCLI/App.cs

@@ -0,0 +1,52 @@
+namespace FiscalOS.AdminCLI;
+
+internal sealed class App(
+  IAnsiConsole console,
+  IPasswordHasher passwordHasher,
+  IServiceScopeFactory serviceScopeFactory
+) : IHostedService
+{
+  private readonly IAnsiConsole _console = console;
+  private readonly IServiceScopeFactory _serviceScopeFactory = serviceScopeFactory;
+
+  public async Task StartAsync(CancellationToken cancellationToken)
+  {
+    using var scope = _serviceScopeFactory.CreateScope();
+    var config = scope.ServiceProvider.GetRequiredService<IConfiguration>();
+    var appDbContext = scope.ServiceProvider.GetRequiredService<AppDbContext>();
+
+    var selectionPrompt = new SelectionPrompt<string>()
+      .Title("What do you want to do?")
+      .AddChoices(Commands.All);
+
+    var command = await _console.PromptAsync(selectionPrompt, cancellationToken);
+
+    switch (command)
+    {
+      case Commands.CreateUser:
+        var username = await _console.AskAsync<string>("Enter the [green]username[/]:", cancellationToken);
+        var password = _console.Prompt(
+          new TextPrompt<string>("Enter the [green]password[/]:")
+            .PromptStyle("red")
+            .Secret()
+        );
+
+        var hashedPassword = passwordHasher.Hash(password);
+        var user = User.From(username, hashedPassword);
+
+        await appDbContext.Users.AddAsync(user, cancellationToken);
+        await appDbContext.SaveChangesAsync(cancellationToken);
+
+        _console.MarkupLine($"User [green]{username}[/] created successfully.");
+        break;
+      case Commands.Exit:
+      default:
+        break;
+    }
+  }
+
+  public Task StopAsync(CancellationToken cancellationToken)
+  {
+    return Task.CompletedTask;
+  }
+}