NXT-6918: Investigate bun bundler - TKN S8

[dan-ichim-lgp]

Checklist

• I have read and understand the contribution guide
• A CHANGELOG entry is included
• At least one test case is included for this feature or bug fix
• Documentation was added or is not needed
• This is an API breaking change

Issue Resolved / Feature Added

Add Bun bundler support for Enact CLI (NXT-6918): expose Bun post-build helpers from @enact/dev-utils, and extend PrerenderPlugin so isomorphic prerender works after Bun.build() (locale HTML / locale-map.json assembly) without webpack compiler hooks.

Resolution

Added bunPlugins export (bun-plugins/) for framework / post-build / prerender / snapshot helpers used by CLI Bun config.
Added PrerenderPlugin.applyBunPostBuild (+ stageBunChunk) to prerender from a built main.js chunk and write locale index HTML the same way as the webpack path.
Hardened prerender runtime for Bun bundles: safer FileXHR / iLib locale resolution, VM staging that avoids corrupting string literals (no bare window/document regex rewrites), and iLib locale-match seeding for isomorphic builds.
Impact: CLI can migrate enact pack --isomorphic / --snapshot / framework post-steps to Bun while keeping prerender output compatible with existing webpack behavior. Additive API only (applyBunPostBuild); webpack plugins unchanged for existing consumers.

Additional Considerations

Links

NXT-6918

Comments

Enact-DCO-1.0-Signed-off-by: Dan Ichim (dan.ichim@lgepartner.com)

[daniel-stoian-lgp]

please also check Github Workflow errors