Show that memory is per vCPU

[lamdor]

The JuliaHub job show method shows the per vCPU memory without indicating that it is per vCPU.

JuliaHub.Job: jr-ezd28tn91e (Running; "omega_screen_1")
 submitted: 2025-11-26T07:49:46.241284+00:00
 started:   2025-11-26T07:50:40.837371+00:00
 files:
  - code.jl (input; 418 bytes)
  - appbundle.tar (input; 13312 bytes)
 inputs:
  - cpu (threads): 4
  - gpu: none
  - jobname: omega_screen_1
  - workers: 2
  - memory: 8GB
  - jr_uuid: pumas-batch```
I think it would be more clear if it either showed something like `8GB/vCPU` or `32GB`. In particular because you pass the total (here `32`) as the `memory` keyword argument to `submit_job`.

[Slack Message](https://juliahub.slack.com/archives/C01J52L5WQ0/p1764143751598269?thread_ts=1764143751.598269&cid=C01J52L5WQ0)