`trySilentEmaAuth` and `refreshEmaResourceTokens` saved tokens without
ever saving a scope. Both are reached from real paths -- initial EMA
authentication with a cached IdP session, refreshEnterpriseManagedTokens,
and EmaTransportOAuthProvider.tokens -- and each can be the moment a
newly configured or metadata-derived scope first takes effect, so a
silent token response left the previous stored scope standing.
Rather than a third copy of the rule, every EMA mint now ends in one
place: mintEmaResourceTokens reports the scope it requested, and
saveMintedTokens writes tokens and the RFC 6749 5.1 scope together.
The manager's EMA branch drops its own saveScope, which would now be a
redundant second write of the same value; the step-up branch keeps its
own, since it falls back to the challenge's authorizationScopes union
and runs last.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_013hzwzS8UvBsr4yZm7o7sev
Signed-off-by: cliffhall <cliff@futurescale.com>