audit work, fixed StellaOps.sln warnings/errors, fixed tests, sprints work, new advisories

docs/modules/timeline-indexer/README.md

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+# Timeline Indexer
+
+> Timeline event indexing and query service.
+
+## Purpose
+
+TimelineIndexer provides fast, indexed access to timeline events across all StellaOps services. It enables efficient querying of vulnerability history, scan timelines, and policy evaluation trails.
+
+## Quick Links
+
+- [Architecture](./architecture.md) - Technical design and implementation details
+- [Guides](./guides/) - Query and configuration guides
+
+## Status
+
+| Attribute | Value |
+|-----------|-------|
+| **Maturity** | Production |
+| **Last Reviewed** | 2025-12-29 |
+| **Maintainer** | Platform Guild |
+
+## Key Features
+
+- **Event Indexing**: Index events from multiple StellaOps services
+- **Time-Range Queries**: Efficient time-series queries with filtering
+- **Event Stream Integration**: Consume from NATS/Valkey event streams
+- **PostgreSQL Storage**: Time-series indexes for fast retrieval
+
+## Dependencies
+
+### Upstream (this module depends on)
+- **PostgreSQL** - Event storage with time-series indexes
+- **NATS/Valkey** - Event stream consumption
+- **Authority** - Authentication
+
+### Downstream (modules that depend on this)
+- **Web Console** - Timeline visualization
+- **CLI** - Timeline queries
+- **ExportCenter** - Timeline data exports
+
+## Configuration
+
+```yaml
+timeline_indexer:
+  event_sources:
+    - nats://events.stellaops.local
+  retention_days: 365
+```
+
+## Notes
+
+TimelineIndexer indexes events; it does not generate them. Events are received from event streams published by other services.
+
+## Related Documentation
+
+- [Telemetry Architecture](../telemetry/architecture.md)