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.

docs2/operations/trust-lattice.md

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+# Trust lattice operations
+
+Purpose
+- Monitor and operate trust lattice gates for VEX and policy decisions.
+
+Core components
+- Trust vectors and gate configuration.
+- Verdict replay for deterministic validation.
+
+Monitoring
+- Track gate failure rate, verdict replay failures, and trust vector drift.
+- Use dashboards for gate health and override usage.
+
+Common operations
+- View current trust vectors and gate configuration.
+- Inspect a verdict and its trust inputs.
+- Trigger manual calibration when required.
+
+Emergency procedures
+- High gate failure rate: pause dependent workflows and investigate sources.
+- Verdict replay failures: verify inputs, cache epochs, and policy versions.
+- Trust vector drift: run replay with frozen inputs and compare hashes.
+
+Maintenance
+- Daily checks: gate failure rate and queue depth.
+- Weekly checks: trust vector calibration and drift review.
+- Monthly checks: update trust bundles and audit logs.
+
+Related references
+- architecture/reachability-vex.md
+- vex/consensus.md
+- docs/operations/trust-lattice-runbook.md
+- docs/operations/trust-lattice-troubleshooting.md