No clear way of pushing a signature to a specific organization

[pojntfx]

There is currently no clear way of how pushing a signature to a specific organization/prefix would work, and logins with login -o have no effect on where the signature is being pushed to.

Versions used:

pojntfx@fedora:~$ go version
go version go1.21.1 linux/amd64
pojntfx@fedora:~$ scale version
scale version v0.1.7-dev12 (build date: Sat Oct 21 00:42:52 UTC 2023 git commit: 676f8de0feb1371469be159c3de896848f4e61e5 go version: go1.21.3 build platform: linux/amd64)

Steps to reproduce:

$ scale login -o atmosfeed

Confirmation Code: XHEHUTAA
Opening browser to https://scale.sh/device-auth?code=XHEHUTAA&organization=atmosfeed

If something goes wrong, copy and paste this URL into your browser: https://scale.sh/device-auth?code=XHEHUTAA&organization=atmosfeed

Logged in as felicitaspojtinger@loopholelabs.io (using organization felicitaspojtinger)

$ scale registry signature push local/classifier:latest
Pushed signature felicitaspojtinger/classifier:latest to the Scale Registry
The following packages are now publicly available:
  Golang (Guest): go.scale.sh/v1/felicitaspojtinger/classifier/latest/guest
  Golang (Host): go.scale.sh/v1/felicitaspojtinger/classifier/latest/host
  Rust (Guest): felicitaspojtinger_classifier_latest_guest

I would have expected the signature classifier to have been pushed to atmosfeed/classifier instead of felicitaspojtinger/classifier.

It is also not possible to create a signature with an org in the name locally, adding to the confusion:

$ scale signature generate atmosfeed/classifier:latest -d ./pkg/signatures/classifier
Error: invalid name 'atmosfeed/classifier', names can only include letters, numbers, periods (`.`), and dashes (`-`)