api: merge job endpoints
The HTTP method already differentiates operations between each other, so
merge stuff that's logically related to each other to individual
Resources.
Related MRs:
- !30 (merged)
- !31 (merged)
- !29 (merged)
- !28 (merged)
- !27 (merged) (This MR)
- !26 (merged)
- !25 (merged)
- main