chore(headless,bueno): externalize all packages on node outputs

[louis-bompart]

fixes #4883

[github-actions]

Pull Request Report

PR Title

✅ Title follows the conventional commit spec.

Live demo links

• Storybook

• Playwright report

Bundle Size

File	Old (kb)	New (kb)	Change (%)
case-assist	243.9	243.9	0
commerce	355.2	355.2	0
search	415.1	415.1	0
insight	406.3	406.3	0
recommendation	256.2	256.2	0
ssr	409	409	0
ssr-commerce	373	373	0

SSR Progress

Use case	SSR (#)	CSR (#)	Progress (%)
search	39	44	89
recommendation	0	4	0
case-assist	0	6	0
insight	0	27	0
commerce	0	15	0

Detailed logs

search : buildInteractiveResult
search : buildInteractiveInstantResult
search : buildInteractiveRecentResult
search : buildInteractiveCitation
search : buildGeneratedAnswer
recommendation : missing SSR support
case-assist : missing SSR support
insight : missing SSR support
commerce : missing SSR support

[louis-bompart]

Todo:

• creates dedicated cdn dist folder/target (that is not used by NPM at all)
• fold browser exports path onto node exports path.
  • update entrypoint documentation.

Blocked by:

• replace @microsoft/fetch-event-source
• amend exponential-backoff so that it either includes its sources, or use inline-source-map
  • check what other "big" packages do.