YG-GROUP/younggee_s_api: 样叽服务商端后端

Xingyu Xian d128f7f12b first commit		4 bulan lalu
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error_code.go	d128f7f12b first commit	4 bulan lalu
invoice.go	d128f7f12b first commit	4 bulan lalu
platform.go	d128f7f12b first commit	4 bulan lalu
product.go	d128f7f12b first commit	4 bulan lalu
project.go	d128f7f12b first commit	4 bulan lalu
session.go	d128f7f12b first commit	4 bulan lalu