feat: Add Hangfire cronjob system with web dashboard, Windows Service support, and Serilog file/console logging

- Add Hangfire packages (AspNetCore, Core, InMemory, SqlServer) with configurable storage (InMemory vs SQL Server)
- Configure Hangfire dashboard at /hangfire with AllowAllDashboardAuthorizationFilter (no auth for development)
- Add Microsoft.Extensions.Hosting.WindowsServices package with conditional UseWindowsService() based on HostingOptions:UseWindowsService config
- Create ProfileManager BackgroundService with IServiceScopeFactory for scoped service resolution per iteration
- Create AllowAllDashboardAuthorizationFilter for Hangfire dashboard access
- Create DtoExtensions with JobId() and ToJob() helper methods
- Configure Serilog with file sink (Production: Logs/log-.txt, daily rolling, 30 day retention) and console sink (Development)
- Add Serilog enrichers: FromLogContext, WithMachineName, WithThreadId
- Update appsettings.json with Hangfire:InMemory flag, HostingOptions:UseWindowsService flag, and Serilog configuration
- Create appsettings.Development.json with console-specific Serilog configuration

ECMJobRunner.WebCron/ECMJobRunner.WebCron.csproj

@@ -13,6 +13,9 @@
     <PackageReference Include="Hangfire.SqlServer" Version="1.8.23" />
     <PackageReference Include="Microsoft.Data.SqlClient" Version="7.0.2" />
     <PackageReference Include="Microsoft.Extensions.Hosting.WindowsServices" Version="10.0.9" />
+    <PackageReference Include="Serilog.AspNetCore" Version="10.0.0" />
+    <PackageReference Include="Serilog.Sinks.Console" Version="6.1.1" />
+    <PackageReference Include="Serilog.Sinks.File" Version="7.0.0" />
     <PackageReference Include="Swashbuckle.AspNetCore" Version="6.6.2" />
   </ItemGroup>
 

ECMJobRunner.WebCron/ProfileManager.cs

@@ -14,49 +14,57 @@ namespace ECMJobRunner.WebCron
 
         protected override async Task ExecuteAsync(CancellationToken stoppingToken)
         {
-
-            while (!stoppingToken.IsCancellationRequested)
+            try
             {
-                if (Logger.IsEnabled(LogLevel.Information))
+
+                while (!stoppingToken.IsCancellationRequested)
                 {
-                    Logger.LogInformation("Worker running at: {time}", DateTimeOffset.Now);
+                    if (Logger.IsEnabled(LogLevel.Information))
+                    {
+                        Logger.LogInformation("Worker running at: {time}", DateTimeOffset.Now);
+                    }
+
+                    // Create a scope to resolve scoped services (ISQLExecutor used by MediatR pipeline)
+                    using var scope = ScopeFactory.CreateScope();
+                    var mediator = scope.ServiceProvider.GetRequiredService<IMediator>();
+
+                    var profiles = await mediator.Send(new GetProfileQuery()
+                    {
+                        Active = true,
+                        IncludeSqlJobs = true
+                    }, stoppingToken);
+
+                    foreach (var profile in profiles)
+                    {
+                        if (Profiles.TryGetValue(profile.JobId(), out var currentProfile)
+                            && currentProfile.Schedule == profile.Schedule)
+                            continue;
+
+                        // Add or update recurring job using MediatR command
+                        JobManager.AddOrUpdate<IMediator>(
+                            profile.JobId(),
+                            mediator => mediator.Send(profile.ToJob(), CancellationToken.None),
+                            profile.Schedule,
+                            new RecurringJobOptions
+                            {
+                                TimeZone = TimeZoneInfo.Local
+                            }
+                        );
+
+                        // Store/update in local cache
+                        Profiles[profile.JobId()] = profile;
+
+                        Logger.LogInformation("Job {JobId} registered with schedule: {Schedule}",
+                            profile.JobId(), profile.Schedule);
+                    }
+
+                    await Task.Delay(1000, stoppingToken);
                 }
 
-                // Create a scope to resolve scoped services (ISQLExecutor used by MediatR pipeline)
-                using var scope = ScopeFactory.CreateScope();
-                var mediator = scope.ServiceProvider.GetRequiredService<IMediator>();
-
-                var profiles = await mediator.Send(new GetProfileQuery()
-                {
-                    Active = true,
-                    IncludeSqlJobs = true
-                }, stoppingToken);
-                
-                foreach (var profile in profiles)
-                {
-                    if (Profiles.TryGetValue(profile.JobId(), out var currentProfile) 
-                        && currentProfile.Schedule == profile.Schedule)
-                        continue;
-
-                    // Add or update recurring job using MediatR command
-                    JobManager.AddOrUpdate<IMediator>(
-                        profile.JobId(),
-                        mediator => mediator.Send(profile.ToJob(), CancellationToken.None),
-                        profile.Schedule,
-                        new RecurringJobOptions
-                        {
-                            TimeZone = TimeZoneInfo.Local
-                        }
-                    );
-
-                    // Store/update in local cache
-                    Profiles[profile.JobId()] = profile;
-                    
-                    Logger.LogInformation("Job {JobId} registered with schedule: {Schedule}", 
-                        profile.JobId(), profile.Schedule);
-                }
-
-                await Task.Delay(1000, stoppingToken);
+            }
+            catch (Exception ex)
+            {
+                Logger.LogError(ex, "An error occurred in ProfileManager.");
             }
         }
     }

ECMJobRunner.WebCron/Program.cs

@@ -4,14 +4,30 @@ using ECMJobRunner.WebCron;
 using Hangfire;
 using Hangfire.SqlServer;
 using Microsoft.Data.SqlClient;
+using Serilog;
 
-var builder = WebApplication.CreateBuilder(args);
+// Configure Serilog from appsettings.json
+Log.Logger = new LoggerConfiguration()
+    .ReadFrom.Configuration(new ConfigurationBuilder()
+        .AddJsonFile("appsettings.json")
+        .AddJsonFile($"appsettings.{Environment.GetEnvironmentVariable("ASPNETCORE_ENVIRONMENT") ?? "Production"}.json", optional: true)
+        .Build())
+    .CreateLogger();
 
-// Configure Windows Service hosting if enabled
-if (builder.Configuration.GetValue<bool>("HostingOptions:UseWindowsService"))
+try
 {
-    builder.Host.UseWindowsService();
-}
+    Log.Information("Starting ECMJobRunner.WebCron application");
+
+    var builder = WebApplication.CreateBuilder(args);
+
+    // Use Serilog for logging
+    builder.Host.UseSerilog();
+
+    // Configure Windows Service hosting if enabled
+    if (builder.Configuration.GetValue<bool>("HostingOptions:UseWindowsService"))
+    {
+        builder.Host.UseWindowsService();
+    }
 
 // Add services to the container.
 builder.Services.AddControllers();
@@ -84,3 +100,12 @@ app.UseHangfireDashboard("/hangfire", new DashboardOptions
 app.MapControllers();
 
 app.Run();
+}
+catch (Exception ex)
+{
+    Log.Fatal(ex, "Application terminated unexpectedly");
+}
+finally
+{
+    Log.CloseAndFlush();
+}

ECMJobRunner.WebCron/appsettings.Development.json

@@ -1,8 +1,22 @@
 {
-  "Logging": {
-    "LogLevel": {
-      "Default": "Information",
-      "Microsoft.AspNetCore": "Warning"
-    }
+  "Serilog": {
+    "Using": [ "Serilog.Sinks.Console" ],
+    "MinimumLevel": {
+      "Default": "Debug",
+      "Override": {
+        "Microsoft.AspNetCore": "Warning",
+        "Microsoft.EntityFrameworkCore": "Warning",
+        "Hangfire": "Information"
+      }
+    },
+    "WriteTo": [
+      {
+        "Name": "Console",
+        "Args": {
+          "outputTemplate": "[{Timestamp:HH:mm:ss} {Level:u3}] {Message:lj}{NewLine}{Exception}"
+        }
+      }
+    ],
+    "Enrich": [ "FromLogContext", "WithMachineName", "WithThreadId" ]
   }
 }

ECMJobRunner.WebCron/appsettings.json

@@ -1,4 +1,27 @@
 {
+  "Serilog": {
+    "Using": [ "Serilog.Sinks.File" ],
+    "MinimumLevel": {
+      "Default": "Information",
+      "Override": {
+        "Microsoft.AspNetCore": "Warning",
+        "Microsoft.EntityFrameworkCore": "Warning",
+        "Hangfire": "Information"
+      }
+    },
+    "WriteTo": [
+      {
+        "Name": "File",
+        "Args": {
+          "path": "Logs/log-.txt",
+          "rollingInterval": "Day",
+          "outputTemplate": "[{Timestamp:yyyy-MM-dd HH:mm:ss.fff zzz}] [{Level:u3}] {Message:lj}{NewLine}{Exception}",
+          "retainedFileCountLimit": 30
+        }
+      }
+    ],
+    "Enrich": [ "FromLogContext", "WithMachineName", "WithThreadId" ]
+  },
   "Logging": {
     "LogLevel": {
       "Default": "Information",