Fix JHU branches

[krivard]

The JHU commit log has become a horror show. Here's what seems to have happened:

1. deploy-jhu was developed iteratively, with lots of debugging commits. This is normal.
2. Once it worked, I rebased for a merge into main. This is something I would like to become normal.
3. Either I did not force-push the rebased changes into deploy-jhu (bad practice; if we rebase to merge onto main we should always update the source branch) or someone with stale history force-pushed their old copy of the chattier commit record onto deploy-jhu.
4. I left a pile of JHU branches in the repository (this is bad practice; it should always be clear which branch to base changes off of, which means the only ones up there should be main, the deploy branch, and active dev branches)
5. Eu Jing based his diff-based issue-builder changes off of one of those branches, and merged to deploy-jhu, resolving conflicts and cementing the chattier commit record

What needs to happen now is:

• Check whether the chatty record got merged into main. If so, this gets more complicated, so hopefully not.
• Bring the rebased version of the jhu deployment up to date with main
• Apply Eu Jing's changes to the clean branch
• Force-push into deploy-jhu
• Trivial PR from main into deploy-jhu to build the new code
• Destroy all outdated branches

[krivard]

PR into deploy-jhu is failing; need to address, merge, then clean up the branch ecosystem

[krivard]

Ping @jsharpna once this is fixed

[krivard]

@jsharpna all done!