feat: Initial commit for DorkNet Admin Mobile app

- Implemented main application structure using .NET MAUI.
- Added App class to manage navigation between Login and Admin pages.
- Created AppDesign class for consistent UI styling.
- Developed pages: LoginPage, DashboardPage, PlayersPage, RoomsPage, SettingsPage, and AdminTabbedPage.
- Integrated AdminApiClient for API interactions and SecureAdminSettings for secure storage of sensitive data.
- Configured Android and iOS platform-specific files including manifest and app delegate.
- Added README with build instructions and authentication details.

DorkNet.AdminMobile/MauiProgram.cs

@@ -0,0 +1,34 @@
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Maui.Controls.Hosting;
+using Microsoft.Maui.Hosting;
+using DorkNet.AdminMobile.Pages;
+using DorkNet.AdminMobile.Services;
+
+namespace DorkNet.AdminMobile;
+
+public static class MauiProgram
+{
+    public static MauiApp CreateMauiApp()
+    {
+        var builder = MauiApp.CreateBuilder();
+        builder.UseMauiApp<App>();
+
+        builder.Services.AddSingleton<SecureAdminSettings>();
+        builder.Services.AddSingleton<AdminApiClient>();
+        builder.Services.AddTransient<LoginPage>();
+        builder.Services.AddTransient<AdminTabbedPage>();
+        builder.Services.AddTransient<DashboardPage>();
+        builder.Services.AddTransient<PlayersPage>();
+        builder.Services.AddTransient<RoomsPage>();
+        builder.Services.AddTransient<SettingsPage>();
+
+        var app = builder.Build();
+        AppServices.Services = app.Services;
+        return app;
+    }
+}
+
+public static class AppServices
+{
+    public static IServiceProvider Services { get; set; } = default!;
+}