Svelte v5 + Sveltekit: Index.d.ts is not generated when exporting components as object properties

[webJose]

Describe the bug

Take the REPL code, but in a Sveltekit project using TypeScript for the purposes of creating an NPM package. The idea here is to collect multiple small components that compose the entirety of Bootstrap's Card component into a single object, exported from index.js as Card.

When applying this strategy, index.d.ts is not generated. There are no visible errors when running npm run package. I can only assume that the problem is in the component typing, as runtime-wise, the trick works (as seen in the REPL).

Reproduction

REPL

Logs

No response

System Info

Svelte v5@next.203

Severity

annoyance