feat(worker): configure Hangfire worker startup

src/IncidentOps.Worker/Program.cs

@@ -0,0 +1,50 @@
+using Hangfire;
+using Hangfire.Redis.StackExchange;
+using IncidentOps.Infrastructure;
+using IncidentOps.Infrastructure.Auth;
+using IncidentOps.Infrastructure.Jobs;
+using IncidentOps.Worker.Jobs;
+using StackExchange.Redis;
+
+var builder = Host.CreateApplicationBuilder(args);
+
+// Configure Infrastructure
+var connectionString = builder.Configuration.GetConnectionString("Postgres")
+    ?? throw new InvalidOperationException("Postgres connection string not configured");
+
+var jwtSettings = new JwtSettings
+{
+    Issuer = builder.Configuration["Jwt:Issuer"] ?? "incidentops",
+    Audience = builder.Configuration["Jwt:Audience"] ?? "incidentops",
+    SigningKey = builder.Configuration["Jwt:SigningKey"] ?? "not-needed-for-worker",
+    AccessTokenExpirationMinutes = 15,
+    RefreshTokenExpirationDays = 7
+};
+
+builder.Services.AddInfrastructure(connectionString, jwtSettings);
+
+// Configure Hangfire
+var redisConnectionString = builder.Configuration["Redis:ConnectionString"]
+    ?? throw new InvalidOperationException("Redis connection string not configured");
+
+builder.Services.AddHangfire(configuration => configuration
+    .SetDataCompatibilityLevel(CompatibilityLevel.Version_180)
+    .UseSimpleAssemblyNameTypeSerializer()
+    .UseRecommendedSerializerSettings()
+    .UseRedisStorage(ConnectionMultiplexer.Connect(redisConnectionString)));
+
+builder.Services.AddHangfireServer(options =>
+{
+    options.Queues = ["critical", "default", "low"];
+    options.WorkerCount = Environment.ProcessorCount * 2;
+});
+
+// Register job implementations
+builder.Services.AddScoped<IIncidentTriggeredJob, IncidentTriggeredJob>();
+builder.Services.AddScoped<ISendWebhookNotificationJob, SendWebhookNotificationJob>();
+builder.Services.AddScoped<IEscalateIfUnackedJob, EscalateIfUnackedJob>();
+
+builder.Services.AddHttpClient();
+
+var host = builder.Build();
+host.Run();