Common Responses

All business API responses use the following outer structure:

Field	Type	Description
code	integer	Response code. 200 indicates success.
msg	string	Response message. Usually 操作成功 (operation successful) on success.
data	object/null	Business data. null when no business data is returned.

Pagination structure:

Field	Type	Description
items	array	Records on the current page.
page	integer	Current page number.
pageSize	integer	Number of records per page.
total	integer	Total number of records.