feat: complete WorkProcessor integration and bug fixes

- Fix hourly lookback bug: use hourly timestamp/interval (not daily)
- Update DI registrations across DataSync, DataAccess, Api layers
- Add WorkProcessor config to appsettings.json
- Remove deprecated DataSyncService (replaced by WorkProcessor)

All 340 DataSync tests pass. Legacy bug from OLD solution now fixed.

NEW/src/JdeScoping.Api/DependencyInjection.cs

@@ -1,6 +1,8 @@
 using System.Text.Json.Serialization;
 using JdeScoping.Api.Hubs;
 using JdeScoping.Api.Options;
+using JdeScoping.Api.Services;
+using JdeScoping.Core.Interfaces;
 using Microsoft.AspNetCore.Authentication.Cookies;
 using Microsoft.AspNetCore.Builder;
 using Microsoft.AspNetCore.Http;
@@ -36,6 +38,9 @@ public static class ApiDependencyInjection
         // Configure SignalR
         services.AddSignalR();
 
+        // Register SignalR notification service
+        services.AddScoped<ISearchNotificationService, SearchNotificationService>();
+
         // Configure cookie authentication
         services.AddAuthentication(CookieAuthenticationDefaults.AuthenticationScheme)
             .AddCookie(options =>