Login & authentication related issues

### Description

This is meant to collect all issues impacting login or overall authn/authz

* [x] #3044
* [ ] #3046
* [x] #3047
* [ ] #3052
* [ ] #3068
* [x] #3069
* [x] #3070
* [x] #3071
* [x] #3245
* [ ] #3257

Unconfirmed / need assessment:

* [x] #920
* [x] #427
* [ ] #1675
* [x] #2840
* [ ] #2844
* [x] #3248
* [x] #3264
* [ ] #299

### Steps to reproduce the issue

na

### Describe the results you received and expected

na

### What version of nerdctl are you using?

1.7.6

### Are you using a variant of nerdctl? (e.g., Rancher Desktop)

None

### Host information

_No response_