[api] improve user search capabilities
[api] improve user search capabilities

JamesMura/sentry,beeftornado/sentry,BuildingLink/sentry,jean/sentry,looker/sentry,mvaled/sentry,gencer/sentry,JamesMura/sentry,gencer/sentry,JackDanger/sentry,ifduyue/sentry,ifduyue/sentry,ifduyue/sentry,BuildingLink/sentry,BuildingLink/sentry,JamesMura/sentry,JackDanger/sentry,jean/sentry,mvaled/sentry,gencer/sentry,ifduyue/sentry,looker/sentry,ifduyue/sentry,looker/sentry,JackDanger/sentry,beeftornado/sentry,JamesMura/sentry,looker/sentry,jean/sentry,BuildingLink/sentry,jean/sentry,mvaled/sentry,beeftornado/sentry,mvaled/sentry,BuildingLink/sentry,jean/sentry,gencer/sentry,looker/sentry,JamesMura/sentry,gencer/sentry,mvaled/sentry,mvaled/sentry