Add tests and implement timeline ingestion options with NATS and Redis subscribers

- Introduced `BinaryReachabilityLifterTests` to validate binary lifting functionality.
- Created `PackRunWorkerOptions` for configuring worker paths and execution persistence.
- Added `TimelineIngestionOptions` for configuring NATS and Redis ingestion transports.
- Implemented `NatsTimelineEventSubscriber` for subscribing to NATS events.
- Developed `RedisTimelineEventSubscriber` for reading from Redis Streams.
- Added `TimelineEnvelopeParser` to normalize incoming event envelopes.
- Created unit tests for `TimelineEnvelopeParser` to ensure correct field mapping.
- Implemented `TimelineAuthorizationAuditSink` for logging authorization outcomes.

src/TimelineIndexer/StellaOps.TimelineIndexer/StellaOps.TimelineIndexer.Core/Models/TimelineEventView.cs

@@ -17,4 +17,12 @@ public sealed class TimelineEventView
     public string? Actor { get; init; }
     public string Severity { get; init; } = "info";
     public string? PayloadHash { get; init; }
+    public IDictionary<string, string>? Attributes { get; init; }
+    public string? RawPayloadJson { get; init; }
+    public string? NormalizedPayloadJson { get; init; }
+    public Guid? BundleId { get; init; }
+    public string? BundleDigest { get; init; }
+    public string? AttestationSubject { get; init; }
+    public string? AttestationDigest { get; init; }
+    public string? ManifestUri { get; init; }
 }

src/TimelineIndexer/StellaOps.TimelineIndexer/StellaOps.TimelineIndexer.Core/Models/TimelineQueryOptions.cs

@@ -8,6 +8,7 @@ public sealed record TimelineQueryOptions
     public string? EventType { get; init; }
     public string? CorrelationId { get; init; }
     public string? TraceId { get; init; }
+    public string? Source { get; init; }
     public string? Severity { get; init; }
     public DateTimeOffset? Since { get; init; }
     public long? AfterEventSeq { get; init; }

src/TimelineIndexer/StellaOps.TimelineIndexer/StellaOps.TimelineIndexer.Core/Services/TimelineIngestionService.cs

@@ -35,6 +35,8 @@ public sealed class TimelineIngestionService(ITimelineEventStore store) : ITimel
             throw new ArgumentException("event_type is required", nameof(envelope));
         if (string.IsNullOrWhiteSpace(envelope.Source))
             throw new ArgumentException("source is required", nameof(envelope));
+        if (string.IsNullOrWhiteSpace(envelope.RawPayloadJson))
+            throw new ArgumentException("raw payload is required", nameof(envelope));
     }
 
     internal static string ComputePayloadHash(string payloadJson)