feat(ADM-018): completed feature

work/artifacts/F-026/architect.md

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+# Architect — F-026 CMS module
+
+## Feature
+F-026 adds simple CMS pages with slug routing and draft/publish states.
+
+## Design
+
+### Module boundaries
+Create `project/src/modules/cms/` with domain/application/infrastructure/api/tests. CMS owns page content. Public storefront consumes published pages.
+
+### Data model
+Add migration `020_cms.js`:
+- `cms_pages`: id, slug unique, title, body, status text default 'draft', created_at, updated_at.
+- CHECK `status IN ('draft','published')`.
+
+### API
+- Admin `POST /cms/pages`, `PATCH /cms/pages/:id`, `POST /cms/pages/:id/publish`, `POST /cms/pages/:id/unpublish`.
+- Public `GET /cms/pages/:slug` returns 404 for draft, 200 for published.
+
+## Acceptance trace
+- Published page returns 200 with body.
+- Draft page returns 404.
+- Duplicate slug returns 409.