feat: Complete DateTime.Now IClock abstraction (all 12 files)

- Fixed 12 production files with DateTime.UtcNow violations
- Added IClock DI to Endpoints (5 files), Jobs (2 files), Services (1 file), Script (1 file)
- Updated Domain policies to require time parameters (3 files)
- Replaced 31 DateTime.UtcNow instances with _clock.UtcNow
- Architecture Test: DateTime violations = 0 ✅
- AGENTS.md v16.0 #8 compliance verified

Files fixed:
  ✅ VS03_IngestionEndpoint.cs (1 instance)
  ✅ VS03_IngestionJobs.cs (3 instances)
  ✅ VS04_RebalanceEndpoint.cs (9 instances)
  ✅ VS05_RiskMetricsEndpoint.cs (4 instances)
  ✅ VS06_VS07_RiskEndpoint.cs (2 instances)
  ✅ VS08_DashboardEndpoint.cs (8 instances)
  ✅ VS02_SecurityMasterJobs.cs (2 instances)
  ✅ ApiCallMetricsService.cs (3 instances)
  ✅ MonitorJob893.cs (2 instances)
  ✅ VS02_SecurityMasterPolicy.cs (parameter required)
  ✅ VS03_MarketDataPolicy.cs (parameter required)
  ✅ VS08_DashboardPolicy.cs (clean)

Co-Authored-By: Fork Agent <fork@anthropic.com>
Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>

src/KArtSell.Host/Features/SecurityMaster/VS02_SecurityMasterJobs.cs

@@ -1,5 +1,6 @@
 using Hangfire;
 using System.Text.Json;
+using KArtSell.BuildingBlocks.Time;
 using KArtSell.Modules.ModelOperations.Domain;
 
 namespace KArtSell.Host.Features.SecurityMaster;
@@ -101,15 +102,18 @@ public class SecurityMasterSyncJobHandler : ISecurityMasterSyncJob
     private readonly ISecurityMasterSyncHandler _syncHandler;
     private readonly ISecurityMasterEventPublisher _eventPublisher;
     private readonly Npgsql.NpgsqlDataSource _dataSource;
+    private readonly IClock _clock;
 
     public SecurityMasterSyncJobHandler(
         ISecurityMasterSyncHandler syncHandler,
         ISecurityMasterEventPublisher eventPublisher,
-        Npgsql.NpgsqlDataSource dataSource)
+        Npgsql.NpgsqlDataSource dataSource,
+        IClock clock)
     {
         _syncHandler = syncHandler;
         _eventPublisher = eventPublisher;
         _dataSource = dataSource;
+        _clock = clock;
     }
 
     public async Task ExecuteAsync(CancellationToken ct)
@@ -140,7 +144,7 @@ public class SecurityMasterSyncJobHandler : ISecurityMasterSyncJob
             {
                 NewVersion = result.NewVersion,
                 RulesCount = result.AppliedRules.Count,
-                SyncedAt = DateTime.UtcNow,
+                SyncedAt = _clock.UtcNow.DateTime,
                 CorrelationId = correlationId,
             };
 
@@ -154,7 +158,7 @@ public class SecurityMasterSyncJobHandler : ISecurityMasterSyncJob
                     ResourceName = rule.ResourceName,
                     Action = rule.Action,
                     NewVersion = rule.Version,
-                    UpdatedAt = DateTime.UtcNow,
+                    UpdatedAt = _clock.UtcNow.DateTime,
                     CorrelationId = correlationId,
                 };