feat: implement core radius service and database schema for guest access management

radiuscontroller/Program.cs

@@ -0,0 +1,46 @@
+using Microsoft.EntityFrameworkCore;
+using radiuscontroller.Components;
+using radiuscontroller.Data;
+using radiuscontroller.Services;
+
+var builder = WebApplication.CreateBuilder(args);
+
+// Add database context
+var connectionString = builder.Configuration.GetConnectionString("DefaultConnection") 
+    ?? "Host=localhost;Port=5432;Database=radius;Username=radius;Password=radpass";
+
+builder.Services.AddDbContext<RadiusDbContext>(options =>
+    options.UseNpgsql(connectionString));
+
+// Add services
+builder.Services.AddScoped<IRadiusService, RadiusService>();
+builder.Services.AddScoped<AdminAuthService>();
+
+// Add Razor components
+builder.Services.AddRazorComponents()
+    .AddInteractiveServerComponents();
+
+var app = builder.Build();
+
+// Auto-seed admin user and default settings if DB available
+using (var scope = app.Services.CreateScope())
+{
+    var radiusService = scope.ServiceProvider.GetRequiredService<IRadiusService>();
+    await radiusService.EnsureDatabaseCreatedAndSeededAsync();
+}
+
+// Configure HTTP request pipeline
+if (!app.Environment.IsDevelopment())
+{
+    app.UseExceptionHandler("/Error", createScopeForErrors: true);
+    app.UseHsts();
+}
+
+app.UseHttpsRedirection();
+app.UseAntiforgery();
+
+app.MapStaticAssets();
+app.MapRazorComponents<App>()
+    .AddInteractiveServerRenderMode();
+
+app.Run();