Map the Grok OAuth access-token tier claim to the public plan label
and prefer it over internal /user entitlement names. Fails open to
existing plan detection for opaque or malformed tokens; upstream
remains authoritative for access and quota enforcement.
Decode GetGrokCreditsConfig frames when REST billing returns empty
caps, so SuperGrok weekly quota shows in the usage dashboard.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>