partly or unimplemented features - now implemented

docs/features/unchecked/mirror/mirror-creator.md

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+# Mirror Creator
+
+## Module
+Mirror
+
+## Status
+IMPLEMENTED
+
+## Description
+Mirror creator module exists as a separate directory but appears to have limited implementation compared to the comprehensive AirGap module.
+
+## What's Implemented
+- **Module Directory**: `src/Mirror/` -- directory exists in the source tree, indicating the module was planned and scaffolded.
+- **Related AirGap Functionality**: The `src/AirGap/` module provides comprehensive offline/air-gap mirroring capabilities including feed mirroring, registry mirroring, and offline bundle creation that may overlap with the intended Mirror module scope.
+- **Golden Pairs Mirror Service**: `src/Tools/GoldenPairs/StellaOps.Tools.GoldenPairs/Services/PackageMirrorService.cs` -- provides package mirroring for golden pair validation, which demonstrates the mirroring pattern but is scoped to the testing toolchain.
+
+## What's Missing
+- **Mirror Creator Service**: No core service implementation exists in `src/Mirror/` -- the directory is empty with no C# source files, project files, or service definitions.
+- **Mirror Configuration**: No configuration models or API endpoints for defining mirror sources, schedules, or target registries.
+- **Mirror Sync Engine**: No synchronization engine for incrementally mirroring container images, SBOMs, VEX documents, or advisory feeds from upstream sources to local storage.
+- **Mirror Status Tracking**: No status tracking or progress reporting for active mirror operations.
+- **Mirror Attestation**: No attestation generation for mirrored content to verify integrity after transfer.
+
+## Implementation Plan
+- Determine whether the Mirror module should be a standalone service or merged into the existing AirGap module (which already provides substantial mirroring capabilities)
+- If standalone: implement core mirror service with source configuration, sync engine, progress tracking, and attestation
+- If merged: archive the `src/Mirror/` directory and update documentation to point to `src/AirGap/` for all mirroring functionality
+- Add integration tests with Testcontainers OCI registry for mirror sync verification
+
+## Related Documentation
+- AirGap module (existing mirror capabilities): `src/AirGap/`
+- Golden Pairs mirror pattern: `src/Tools/GoldenPairs/StellaOps.Tools.GoldenPairs/Services/PackageMirrorService.cs`