archetech / archon / 28609137962 / 1

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Pull #676

github

feat(gatekeeper): dereference did:cid data via /1.0/identifiers/:did/data

Add a standards-conformant DID URL dereferencing endpoint for the
did:cid method-specific data resource (the DID URL did:cid:<cid>/data),
served under the Universal Resolver driver convention
/1.0/identifiers/:did on a dedicated router.

Because did:cid is content-addressed, the resource is retrieved by
content rather than an external location. The endpoint reshapes the
existing resolveDID() output at the route layer — no gatekeeper.ts
change — and returns the data resource itself (empty object for agent
DIDs) rather than the resolution triple. Honors versionTime,
versionSequence, confirm, and verify, mirroring the resolve route;
maps invalidDid to 400 and notFound to 404.

The internal /api/v1/did/:did family is left untouched for backwards
compatibility. Also normalizes /identifiers/:did for metrics labeling
and regenerates the Gatekeeper OpenAPI spec.

Implements #671. Refs #672, #673.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

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