refactor: consolidate project structure by migrating authentication, identity, and shared UI components while removing legacy Web Client files.

src/NexusReader.Maui/MauiProgram.cs

@@ -28,6 +28,17 @@ public static class MauiProgram
 		builder.Services.AddSingleton<IPlatformService, MauiPlatformService>();
 		builder.Services.AddSingleton<INativeStorageService, MauiStorageService>();
 		
+		// Identity
+		builder.Services.AddScoped<IIdentityService, IdentityService>();
+		builder.Services.AddScoped<NexusAuthenticationStateProvider>();
+		builder.Services.AddScoped<Microsoft.AspNetCore.Components.Authorization.AuthenticationStateProvider>(sp => 
+			sp.GetRequiredService<NexusAuthenticationStateProvider>());
+		builder.Services.AddCascadingAuthenticationState();
+		builder.Services.AddAuthorizationCore();
+
+		// Network
+		builder.Services.AddScoped(sp => new HttpClient { BaseAddress = new Uri("http://localhost:5000") }); // Update with real API URL later
+
 		// Shared UI State
 		builder.Services.AddScoped<IThemeService, ThemeService>();
 		builder.Services.AddScoped<IFocusModeService, FocusModeService>();