Forward fix the web api pr

[yangw-dev]

Description

Forward fix the web api pr dependency issue

1. for unittest use monkeypatch to gracefully introduce dummy env var
2. add dummy report for manager.

Checklist

Before submitting this PR, ensure the following steps have been completed:

• Run the slash command /verifyruns on your own server.
  • Run the cluster bot on your server:

    python discord-bot.py

  • Start training runs with the slash command /verifyruns.
  • Verify that the bot eventually responds with:

    ✅ All runs completed successfully!
    

    (It may take a few minutes for all runs to finish. In particular, the GitHub
    runs may take a little longer. The Modal run is typically quick.)
    For more information on running a cluster bot on your own server, see
    README.md.

[github-actions]

Coverage report

Click to see where and how coverage changed

File	Statements	Missing	Coverage	Coverage (new stmts)	Lines missing
src/libkernelbot
background_submission_manager.py					36, 38-40, 42, 45, 47
utils.py
Project Total

This report was generated by python-coverage-comment-action

[yangw-dev]

this test the function from kernel, right now we cannot do it until fix the env var setting,
can added to next pr