Portfolio site with lightweight CMS

Build a portfolio site for a designer/photographer with an editable CMS.

Core features:
1. Public: home, project grid, project detail, about, contact
2. Admin: create/edit projects (title, cover, gallery, story)
3. Reorder projects by drag
4. Contact form to owner email

Data: projects, images, messages.
Must-haves: image optimization, per-project OG image, fast LCP.