refactor(time): change DateTime from UTC to local time

- Change HealthCheckHtmlGenerator to use DateTime.Now instead of DateTime.UtcNow
- Change ProfileWorker health check timestamps to use DateTime.Now
- Change Program health check endpoint to use DateTime.Now
- Ensures consistent local time usage across the application

ECMJobRunner.WebCron/Program.cs

@@ -2,6 +2,7 @@ using ECMJobRunner.Application;
 using ECMJobRunner.Infrastructure;
 using ECMJobRunner.WebCron;
 using ECMJobRunner.WebCron.HealthCheck;
+using ECMJobRunner.WebCron.Middleware;
 using ECMJobRunner.WebCron.ProfileWorker;
 using Hangfire;
 using Hangfire.SqlServer;
@@ -65,7 +66,7 @@ builder.Services.AddJobRunnerInfrastructure(cnnStr);
 
 var recClientApiUrl = builder.Configuration.GetValue<string>("ReC:ApiUrl")
     ?? throw new InvalidOperationException("ReC:ApiUrl not found.");
-builder.Services.AddJobRunnerServices(recClientApiUrl);
+builder.Services.AddJobRunnerServices(recClientApiUrl, builder.Configuration);
 
 // Get Hangfire storage configuration
 var useInMemory = builder.Configuration.GetValue<bool>("Hangfire:InMemory");
@@ -105,7 +106,7 @@ builder.Services.AddSwaggerGen();
 
 // Add health checks
 builder.Services.AddHealthChecks()
-    .AddCheck<ProfileWorker>("profile-worker", tags: new[] { "ready", "worker" });
+    .AddCheck<ProfileWorker>("profile-worker", tags: ["ready", "worker"]);
 
 // Add Serilog.UI with SQLite provider - use same path from configuration
 var serilogUiLogDirectory = builder.Configuration.GetValue<string>("Application:LogDirectory")
@@ -123,6 +124,8 @@ builder.Services.AddSerilogUi(logUIOpt =>
 
 var app = builder.Build();
 
+app.UseMiddleware<ExceptionHandlingMiddleware>();
+
 // Configure the HTTP request pipeline.
 if (app.Environment.IsDevelopment())
 {
@@ -171,7 +174,7 @@ app.MapHealthChecks("/health", new Microsoft.AspNetCore.Diagnostics.HealthChecks
         var result = System.Text.Json.JsonSerializer.Serialize(new
         {
             status = report.Status.ToString(),
-            timestamp = DateTime.UtcNow,
+            timestamp = DateTime.Now,
             checks = report.Entries.Select(e => new
             {
                 name = e.Key,