Improve Program.cs startup: safer log folder creation, CORS policy, and middleware order

Presentation/ASPNET/Program.cs

@@ -1,21 +1,48 @@
 using ASPNET.BackEnd;
 using ASPNET.BackEnd.Common.Middlewares;
 using ASPNET.FrontEnd;
+using Serilog;
 
 var builder = WebApplication.CreateBuilder(args);
 
-//>>> Create Logs folder for Serilog
+//>>> Configure Serilog logging
 var logPath = Path.Combine(Directory.GetCurrentDirectory(), "wwwroot", "app_data", "logs");
-if (!Directory.Exists(logPath))
+try
 {
-    Directory.CreateDirectory(logPath);
+    if (!Directory.Exists(logPath))
+    {
+        Directory.CreateDirectory(logPath);
+    }
 }
+catch (Exception ex)
+{
+    Console.WriteLine($"Failed to create logs directory: {ex.Message}");
+}
+
+// Configure Serilog
+Log.Logger = new LoggerConfiguration()
+    .WriteTo.File(Path.Combine(logPath, "app.log"), rollingInterval: RollingInterval.Day)
+    .CreateLogger();
+
+builder.Host.UseSerilog();
 
 builder.Services.AddBackEndServices(builder.Configuration);
 builder.Services.AddFrontEndServices();
 
+// Configure CORS policy
+builder.Services.AddCors(options =>
+{
+    options.AddPolicy("AllowAll", policy =>
+    {
+        policy.AllowAnyOrigin()
+              .AllowAnyHeader()
+              .AllowAnyMethod();
+    });
+});
+
 var app = builder.Build();
 
+// Register backend services and routes
 app.RegisterBackEndBuilder(app.Environment, app, builder.Configuration);
 
 if (!app.Environment.IsDevelopment())
@@ -25,13 +52,32 @@
 }
 
 app.UseRouting();
-app.UseCors();
-app.UseMiddleware<GlobalApiExceptionHandlerMiddleware>();
+
+// Apply CORS policy
+app.UseCors("AllowAll");
+
+// Authentication & Authorization
 app.UseAuthentication();
 app.UseAuthorization();
-app.MapStaticAssets();
 
+// Global exception middleware should be after auth
+app.UseMiddleware<GlobalApiExceptionHandlerMiddleware>();
+
+// Map static assets and frontend/backend routes
+app.MapStaticAssets();
 app.MapFrontEndRoutes();
 app.MapBackEndRoutes();
 
-app.Run();
+// Safe startup
+try
+{
+    app.Run();
+}
+catch (Exception ex)
+{
+    Log.Fatal(ex, "Application failed to start");
+}
+finally
+{
+    Log.CloseAndFlush();
+}