Added Serilog for improved logs

- Logs will be shown by console and stored in files.

src/Somnia.GuestLog/Program.cs

@@ -4,6 +4,9 @@ using Microsoft.AspNetCore.Localization;
 using Microsoft.EntityFrameworkCore;
 using Microsoft.EntityFrameworkCore.Diagnostics;
 using MudBlazor.Services;
+using Serilog;
+using Serilog.Extensions.Logging;
+using Somnia.GuestLog;
 using Somnia.GuestLog.Components;
 using Somnia.GuestLog.Infrastructure;
 using Somnia.GuestLog.Models.Configuration;
@@ -18,6 +21,20 @@ using Somnia.GuestLog.Validators;
 
 var builder = WebApplication.CreateBuilder(args);
 
+//Load config files.
+builder.Configuration.AddJsonFile("Config/log_Config.json", optional: false, reloadOnChange: false);
+
+//Create and configure Logger (Serilog)
+var serilog = new LoggerConfiguration()
+    .ReadFrom.Configuration(builder.Configuration)
+    .CreateLogger();
+builder.Services.AddSerilog(serilog);
+
+var logger = new SerilogLoggerFactory(serilog).CreateLogger<Program>();
+
+logger.LogInformation("\n\n\n -------------- Starting {appName} {appVersion} --------------", AppSettings.AppName, AppSettings.AppVersion);
+
+
 var connectionStringGuestLog = builder.Configuration.GetConnectionString("DbSomniaGuestLog")
     ?? throw new InvalidOperationException("Connection string 'DbSomniaGuestLog' not found.");
 builder.Services.AddDbContextFactory<GuestLogContext>(options =>