api/oauth: Ensure access tokens are JSON serializable
api/oauth: Ensure access tokens are JSON serializable

skylines-project/skylines,Turbo87/skylines,skylines-project/skylines,Harry-R/skylines,Harry-R/skylines,skylines-project/skylines,RBE-Avionik/skylines,Harry-R/skylines,Turbo87/skylines,RBE-Avionik/skylines,Turbo87/skylines,RBE-Avionik/skylines,Turbo87/skylines,skylines-project/skylines,Harry-R/skylines,RBE-Avionik/skylines