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

@@ -13,6 +13,8 @@ namespace ECMJobRunner.WebCron
         private readonly ConcurrentDictionary<string, CfgProfileDto> Profiles = new();
 
         protected override async Task ExecuteAsync(CancellationToken stoppingToken)
+        {
+            try
             {
 
                 while (!stoppingToken.IsCancellationRequested)
@@ -58,6 +60,12 @@ namespace ECMJobRunner.WebCron
 
                     await Task.Delay(1000, stoppingToken);
                 }
+
+            }
+            catch (Exception ex)
+            {
+                Logger.LogError(ex, "An error occurred in ProfileManager.");
+            }
         }
     }
 }

ECMJobRunner.WebCron/Program.cs

@@ -4,9 +4,25 @@ using ECMJobRunner.WebCron;
 using Hangfire;
 using Hangfire.SqlServer;
 using Microsoft.Data.SqlClient;
+using Serilog;
+
+// 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();
+
+try
+{
+    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"))
     {
@@ -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",