Add Strapi CMS with Article and Category content types

Article is deliberately minimal: title, slug, Markdown body, cover image and
category. No Author content type — the administrator is the only writer.

The bootstrap hook grants the Public role find/findOne on the two content types
and disables self-registration, so the public API is read-only and the site has
no front-end accounts.

cms/config/api.ts

@@ -0,0 +1,16 @@
+import type { Core } from '@strapi/strapi';
+
+const config: Core.Config.Api = {
+  rest: {
+    defaultLimit: 25,
+    maxLimit: 100,
+    withCount: true,
+    strictParams: true,
+  },
+  documents: {
+    strictParams: true,
+    strictRelations: true,
+  },
+};
+
+export default config;