Restructures application startup and configuration

Migrates from standalone Program.cs to Startup-based configuration
Adds application configuration JSON for environment-specific settings
Integrates Autofac dependency injection and modular service registration

Configures application services, modules, and middleware for enhanced flexibility

PlanTempus.Application/Program.cs

@@ -1,47 +1,14 @@
-using Microsoft.AspNetCore.Builder;
-using Microsoft.Extensions.DependencyInjection;
-using Microsoft.Extensions.Hosting;
-using Microsoft.AspNetCore.Mvc.Razor;
-using Microsoft.AspNetCore.Mvc.RazorPages;
-using PlanTempus.Application.Features.Localization.Services;
-using PlanTempus.Application.Features.Menu.Services;
+using Autofac.Extensions.DependencyInjection;
+using PlanTempus.Application;
 
-var builder = WebApplication.CreateBuilder(args);
+var host = Host.CreateDefaultBuilder(args)
+    .UseServiceProviderFactory(new AutofacServiceProviderFactory())
+    .ConfigureWebHostDefaults(webHostBuilder =>
+    {
+        webHostBuilder
+            .UseContentRoot(Directory.GetCurrentDirectory())
+            .UseStartup<Startup>();
+    })
+    .Build();
 
-// Add Razor Pages with feature-based structure
-builder.Services.AddRazorPages(options =>
-{
-    options.RootDirectory = "/Features";
-})
-.AddRazorOptions(options =>
-{
-    // View locations for partials and ViewComponents
-    options.ViewLocationFormats.Add("/Features/_Shared/Pages/{0}.cshtml");
-    options.ViewLocationFormats.Add("/Features/_Shared/Components/{1}/{0}.cshtml");
-
-});
-
-// Register application services
-builder.Services.AddScoped<IMenuService, MockMenuService>();
-builder.Services.AddScoped<ILocalizationService, JsonLocalizationService>();
-
-var app = builder.Build();
-
-// Developer exception page for debugging
-if (app.Environment.IsDevelopment())
-{
-    app.UseDeveloperExceptionPage();
-}
-
-// Serve static files from wwwroot
-app.UseStaticFiles();
-
-// Configure routing
-app.UseRouting();
-
-// Map Razor Pages
-app.MapRazorPages();
-
-app.Run("http://localhost:8000");
-
-// Note: Set ASPNETCORE_ENVIRONMENT=Development for detailed error pages
+host.Run();