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# Vextar AI · 0.8s async def authenticate_user( token: str, scopes: list[str] ) -> AuthResult: """JWT validation with rate limiting + audit log.""" payload = await jwt.verify( token, settings.SECRET ) if not has_scopes( payload, scopes ): raise PermissionDenied() return AuthResult( user_id=payload["sub"], scopes=scopes )
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