Follow-up to PR #378 — drops the (e: any) / (d: any) casts in the
external-folder-tree picker. ExternalEntry is already exported from
externalMedia.service.ts; the call site just wasn't using it.
- Import the type alongside the service.
- Annotate the dirs filter callback so `e.type` is the union 'dir' |
'file' instead of any.
- Drop the (d: any) annotation from the map — TypeScript infers
ExternalEntry from the typed `dirs` array.
No behaviour change, no test impact. `npx tsc --noEmit` clean,
`npx eslint` clean.
Paul Nothaft
98c6f6cf06