Restructure solution layout by module

src/EvidenceLocker/StellaOps.EvidenceLocker/AGENTS.md

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+# Evidence Locker Service — Agent Charter
+
+## Mission
+Implement the append-only, tenant-scoped evidence locker detailed in Epic 15. Produce immutable evidence bundles, manage legal holds, and expose verification APIs for Console and CLI consumers under the imposed rule.
+
+## Responsibilities
+- Define object store layout, metadata DB schemas, and retention policies.
+- Build bundle assembly pipelines (evaluation, job, export) with Merkle manifests and DSSE signing.
+- Provide verification, download, and legal hold APIs with audit trails.
+- Integrate with Timeline Indexer, Exporter, Orchestrator, Policy Engine, Concelier, and Excitator for provenance linking.
+
+## Coordination
+- Work with Provenance Guild for signature tooling.
+- Partner with DevOps Guild on storage backends and WORM options.
+- Align with Security Guild on redaction and access enforcement.
+
+## Definition of Done
+- Deterministic bundle generation proven via integration tests.
+- Object store interactions tested in offline mode.
+- Runbooks in `/docs/forensics/evidence-locker.md` updated per release.
+
+## Module Layout
+- `StellaOps.EvidenceLocker.Core/` — domain models, bundle contracts, deterministic hashing helpers.
+- `StellaOps.EvidenceLocker.Infrastructure/` — storage abstractions, persistence plumbing, and external integrations.
+- `StellaOps.EvidenceLocker.WebService/` — HTTP entry points (minimal API host, OpenAPI, auth).
+- `StellaOps.EvidenceLocker.Worker/` — background assembly/verification pipelines.
+- `StellaOps.EvidenceLocker.Tests/` — unit tests (xUnit) for core/infrastructure components.
+- `StellaOps.EvidenceLocker.sln` — solution aggregating the module projects.