[NOTE] API "POST /chartrepo/charts" can be calling by another API

[moooofly]

from swagger file, you can see

POST /chartrepo/charts

Upload a chart file to the default ‘library’ project. 
Uploading together with the prov file at the same time is also supported.

and it can be substituted by the API below by specifying {repo} to library

POST /chartrepo/{repo}/charts

Upload a chart file to the specified project. 
With this API, the corresponding provance file can be uploaded together with chart file at once.