Plan and Tasks

1. Implement canonical checkpoint substrate, state-home/catalog store, topology scope, the analysis adapter's closed intake registry, and the CLI (HRC-AC-1..HRC-AC-8, HRC-AC-11..HRC-AC-14).
2. Register the advanced CLI leaf and update inventory/help/side-effect fixtures (HRC-AC-7, HRC-AC-8, HRC-AC-11, HRC-AC-12).
3. Add explicit learning checkpoint loading while preserving the no-option fallback and documenting the multi-host limitation (HRC-AC-9, HRC-AC-15, HRC-AC-16).
4. Add I/O-free public selection validators and validate component/selection artifacts from the same once-read buffers through public owners (HRC-AC-5, HRC-AC-10).
5. Update architecture and concept/troubleshooting routes only after executable behavior exists. Do not edit release or version metadata.
6. Run Review Readiness Check over the implementation diff before commit.