C.3.3:9.2 - Same AuthenticatedRequest kind across services — no bridge
Frontend and gateway services use the same AuthenticatedRequest kind: the candidate request domain, signature-validity condition, and intended member/non-member distinction are aligned. Each service uses its selected declaration edition and evaluates the request afresh. The gateway spelling x-auth may require a C.3.4 vocabulary binding when that wording use is relied on; an F.9 sense relation is added only if that use also needs a relation between distinct local senses. The service boundary and spelling alone create neither another kind nor a KindBridge.