Move common-envs.mk and package.mk from scripts/ to hack/ directory.
Update all Makefile includes to use new paths. Remove unused
issue-flux-certificates.sh script.
Co-Authored-By: Claude <noreply@anthropic.com>
Signed-off-by: Andrei Kvapil <kvapss@gmail.com>
## What this PR does
This PR introduces a bare-bones Job backup strategy API type and stubs
out all the boilerplate for a new controller that will handle this
strategy, as well as any others in the `strategy.backups.cozystack.io`
API group.
### Release note
```release-note
[backups] Create stubs and minimal implmentations for controllers for
the strategy.backups.cozystack.io API group.
```
Signed-off-by: Timofei Larkin <lllamnyp@gmail.com>
