)

After you create an SSH key in the instance create form, it should
automatically be checked to be injected into the instance. Otherwise why
would you be adding it? Actual fix is
9285551, second commit is a tiny bit of
code cleanup.

Did my favorite Claude thing and asked it whether we originally had a
reason to not auto-select the SSH key. Definitively, no:

> Ideally the new keys are pre-selected I suppose, though it might not
be worth the work.
#1867 (comment)


https://github.com/user-attachments/assets/899bb513-d809-41a1-8e9d-7cc79ff09bbf

Closes #3175

`theme-init.js` was in `public/` at the root, so it ended up at
`dist/theme-init.js`. In production, Nexus
[serves](https://github.com/oxidecomputer/omicron/blob/b2b1e393a4072f041ee833656fcd57e683704d0e/nexus/src/external_api/console_api.rs#L409-L439)
console static files via explicitly defined routes — there's a
`/assets/{path:.*}` route but no route for files at the root like
`/theme-init.js`.

The fix moves `theme-init.js` from `public/` to `public/assets/` so it
lands in `dist/assets/` and is served by the existing
`/assets/{path:.*}` route. The Vite plugin now references
`/assets/theme-init.js?v={hash}`.