⚙️ Phase 7: Hangfire Background Job Scheduling

Hangfire Integration for Automated Tasks
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

✅ SchedulerService.cs (New)
- Background job scheduling with Hangfire
- 4 Recurring Jobs:
  * Daily collection (9:00 AM)
  * Hourly price update (9 AM-3 PM, Mon-Fri)
  * Weekly report (Friday 5:00 PM)
  * Monthly optimization (1st day, 2:00 AM)

- Methods:
  * InitializeSchedules() - Setup recurring jobs
  * RunDailyCollectionAsync() - Daily data collection
  * UpdatePricesAsync() - Hourly price refresh
  * FetchPriceAsync(ticker) - Single ticker price fetch
  * GenerateWeeklyReportAsync() - Weekly report generation
  * RunMonthlyOptimizationAsync() - Monthly optimization
  * EnqueueJob() - One-time job enqueue
  * GetJobStatus() - Check job status
  * CancelScheduledJob() - Cancel scheduled job

- HangfireServiceExtensions:
  * AddHangfireServices() - Register Hangfire with SQL Server
  * UseHangfireSetup() - Initialize schedules and dashboard
  * HangfireAuthorizationFilter - Basic auth for dashboard

✅ Program.cs (Updated)
- Added Hangfire imports
- Registered Hangfire services with SQL Server storage
- Added Hangfire middleware setup
- Dashboard available at /hangfire
- Graceful error handling for Hangfire failures

Features:
✓ Recurring job scheduling with Cron expressions
✓ Queue-based job processing
✓ SQL Server job storage (persistent)
✓ Worker thread pool (CPU-count * 2)
✓ Job retry and error handling
✓ Hangfire Dashboard for monitoring
✓ Logging integration with Serilog
✓ RBAC-ready dashboard authorization

Scheduled Tasks:
1. Daily Collection (9:00 AM)
   - Fetches data for 6 tickers
   - Logs each ticker collection
   - Scheduled for market hours

2. Hourly Price Update (9 AM-3 PM, Mon-Fri)
   - Updates top 3 tickers
   - Queues individual price jobs
   - Market-hours only

3. Weekly Report (Friday 5:00 PM)
   - Generates comprehensive weekly report
   - Scheduled for end of week

4. Monthly Optimization (1st day, 2:00 AM)
   - Portfolio optimization
   - Low-traffic time window

Usage Example:

Configuration (appsettings.json):

Dashboard Access:
- URL: http://localhost:5265/hangfire
- Features:
  * Job queue monitoring
  * Recurring job management
  * Job history and logs
  * Failed job handling
  * Statistics and charts

Next: Phase 6 (Testing) & Phase 8 (Deployment)

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

src/dotnet/QuantEngine.Web/Program.cs

@@ -21,6 +21,9 @@ using Microsoft.AspNetCore.Authentication;
 using System.Text.Encodings.Web;
 using Microsoft.Extensions.Options;
 using MudBlazor.Services;
+using QuantEngine.Web.Services;
+using Hangfire;
+using Hangfire.SqlServer;
 
 // Serilog Configuration with Telegram Sink
 Log.Logger = new LoggerConfiguration()
@@ -47,6 +50,17 @@ builder.Services.AddAuthorizationCore();
 
 builder.Services.AddMudServices();
 
+// Hangfire Background Job Scheduling
+try
+{
+    var hangfireConnectionString = builder.Configuration.GetConnectionString("HangfireConnection") ?? connectionString;
+    builder.Services.AddHangfireServices(hangfireConnectionString);
+}
+catch (Exception ex)
+{
+    Log.Warning("Hangfire initialization failed: {Message}", ex.Message);
+}
+
 // PostgreSQL Dapper Setup
 var configuredConnectionString = builder.Configuration.GetConnectionString("DefaultConnection");
 var fallbackConnectionString = "Host=127.0.0.1;Database=quantenginedb;Username=quantengine_app;Password=CHANGE_ME;Search Path=quantengine;";
@@ -143,6 +157,16 @@ app.UseAntiforgery();
 app.UseAuthentication();
 app.UseAuthorization();
 
+// Initialize Hangfire (dashboard and schedules)
+try
+{
+    app.UseHangfireSetup(app.Services);
+}
+catch (Exception ex)
+{
+    Log.Warning("Hangfire setup failed: {Message}", ex.Message);
+}
+
 app.MapStaticAssets();
 
 app.MapGet("/", () => Results.Redirect("/login"));