- Add access control to registry.execute(): checks requiredScopes, requiredScopesAny,
and resourceType/resourceAction; rejects with ACCESS_DENIED when identity required
but absent; skips when context.trusted is true
- Add trusted field to OperationContext schema (internal, set by buildEnv for
nested calls to skip redundant scope checks)
- Simplify CallHandler to thin adapter: delegates to registry.execute() instead of
duplicating lookup, validation, and access control
- Remove callMap option from buildEnv(): always uses execute(), propagates context
with trusted: true for nested calls
- Add access control to subscribe(): same default-deny logic as execute()
- Change execute() to throw CallError instead of plain Error for not found,
no handler, and validation errors
- Export checkAccess from call.ts and index.ts for external use
- Remove CallMap type export, update EnvOptions
- Update architecture docs: api-surface.md, call-protocol.md,
ADR-006 status to implemented, source vs spec drift sections
- All 228 tests passing