semi implemented and features implemented save checkpoint

docs/features/unchecked/releaseorchestrator/release-bundle-manager.md

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+# Release Bundle Manager (Multi-Component Release Creation)
+
+## Module
+ReleaseOrchestrator
+
+## Status
+IMPLEMENTED
+
+## Description
+Release bundle management for creating releases containing multiple component versions. Supports add/remove components from draft releases, finalization to lock versions, and release manifest generation.
+
+## Implementation Details
+- **Modules**: `src/ReleaseOrchestrator/__Libraries/StellaOps.ReleaseOrchestrator.Release/Manager/`, `src/ReleaseOrchestrator/__Libraries/StellaOps.ReleaseOrchestrator.Release/Component/`
+- **Key Classes**:
+  - `ReleaseManager` (`src/ReleaseOrchestrator/__Libraries/StellaOps.ReleaseOrchestrator.Release/Manager/ReleaseManager.cs`) - manages release bundles with add/remove components, finalization, and manifest generation
+  - `ComponentRegistry` (`src/ReleaseOrchestrator/__Libraries/StellaOps.ReleaseOrchestrator.Release/Component/ComponentRegistry.cs`) - tracks component versions available for inclusion in releases
+- **Interfaces**: `IReleaseManager`, `IComponentRegistry`
+- **Source**: SPRINT_20260110_104_003_RELMAN_release_manager.md
+
+## E2E Test Plan
+- [ ] Create a draft release via `ReleaseManager` and verify it is in draft state
+- [ ] Add multiple component versions to the draft and verify they are tracked
+- [ ] Remove a component from the draft and verify it is no longer included
+- [ ] Finalize the release and verify all component versions are locked (immutable)
+- [ ] Generate a release manifest and verify it lists all components with their digest-pinned versions