:construction: chore(server.entity): add basic definitions about prepare entity and post entity
:construction: chore(server.entity): add basic definitions about prepare entity and post entity

ASMlover/study,ASMlover/study,ASMlover/study,ASMlover/study,ASMlover/study,ASMlover/study,ASMlover/study,ASMlover/study,ASMlover/study