Add config-atlas as a federation source (capability index) and to the local
repo roster. Document surface.* as a distinct id namespace owned by
config-atlas (typed sibling of capability.*, not federated here) under a new
"Id namespace ownership" section. Raw URL currently 303 (required:false), same
publish block as state-hub/feature-control. Recompose federated.yaml.
Supports config-atlas ATLAS-WP-0002-T05.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Add hub sync and report cohorts CLI commands with pytest coverage, document
sibling index publish contract and hub hardening path, align INTENT layout,
raise external evidence on three registry entries, and close gap priorities
19-23 (priority 18 deferred on sibling index blocks).
Extend federation manifest schema for url sources with auth and TTL metadata.
Fetch remote capability indexes over HTTP(S), cache under
registry/federation/cache/, and fall back to stale cache on fetch failure.
Add --refresh flag, seven federation tests, and updated federation docs.
Add federation manifest and schema, federation compose and graph CLI commands,
relation cycle/reference checks, federated index and Mermaid graph artifacts,
RegistryFederation guide, and CI validation updates.
