[parse] long file handling

[pi0]

Environment

Reproduction

https://stackblitz.com/edit/stackblitz-starters-rnsaetcx?file=index.mjs

Describe the bug

~~GitHub tarball paths for filenames are inconsistent. It seems it assumes we should inherit last dir name and prefix it to names.~~

~~I have to do little more research if there is some meta specific to this behavior we might be missing or it is just a convention to follow by default.~~

long paths should be handled from previous tar entries

Additional context

Context: https://github.com/unjs/nanotar/issues/14#issuecomment-2604310766

Logs

[directory] astro-main/packages/integrations/vue/test/fixtures/app-entrypoint-no-export-default/src/components/
[file] Bar.vue
[file] Circle.svg
[file] Foo.vue