Flip NEXT_PUBLIC_FEATURE_RESIDENTIAL_PROJECTS default from false to
true so /du-an and /du-an/[slug] render without requiring an env var
or ?residential_projects=1 query override. Kill-switch preserved —
set the env var to "0"/"false" to disable.
The homepage now advertises Dự án as a core feature; having the page
404 by default contradicted that positioning.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
- Add useResidentialProjectsFlag hook with NEXT_PUBLIC_FEATURE_RESIDENTIAL_PROJECTS env + URL/localStorage override (mirrors AVM v2 pattern)
- Gate /du-an index (client) and /du-an/[slug] detail (server) routes via notFound() when flag disabled
- Add component tests for index page including disabled-flag notFound branch
Co-Authored-By: Paperclip <noreply@paperclip.ing>
