Add tests for SBOM generation determinism across multiple formats

- Created `StellaOps.TestKit.Tests` project for unit tests related to determinism.
- Implemented `DeterminismManifestTests` to validate deterministic output for canonical bytes and strings, file read/write operations, and error handling for invalid schema versions.
- Added `SbomDeterminismTests` to ensure identical inputs produce consistent SBOMs across SPDX 3.0.1 and CycloneDX 1.6/1.7 formats, including parallel execution tests.
- Updated project references in `StellaOps.Integration.Determinism` to include the new determinism testing library.

docs/observability/observability.md

@@ -86,7 +86,7 @@ This guide captures the canonical signals emitted by Concelier and Excititor onc
 
 ### 2.2 Trace usage
 
-- Correlate UI dashboard entries with traces via `traceId` surfaced in violation drawers (`docs/ui/console.md`).
+- Correlate UI dashboard entries with traces via `traceId` surfaced in violation drawers (`docs/15_UI_GUIDE.md`).
 - Use `aoc.guard` spans to inspect guard payload snapshots. Sensitive fields are redacted automatically; raw JSON lives in secure logs only.
 - For scheduled verification, filter traces by `initiator="scheduled"` to compare runtimes pre/post change.
 
@@ -217,7 +217,7 @@ Update `docs/assets/dashboards/` with screenshots when Grafana capture pipeline
 
 - [Aggregation-Only Contract reference](../ingestion/aggregation-only-contract.md)
 - [Architecture overview](../modules/platform/architecture-overview.md)
-- [Console AOC dashboard](../ui/console.md)
+- [Console guide](../15_UI_GUIDE.md)
 - [CLI AOC commands](../modules/cli/guides/cli-reference.md)
 - [Concelier architecture](../modules/concelier/architecture.md)
 - [Excititor architecture](../modules/excititor/architecture.md)