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/src/admin/app.example.tsx

@@ -0,0 +1,37 @@
+import type { StrapiApp } from '@strapi/strapi/admin';
+
+export default {
+  config: {
+    locales: [
+      // 'ar',
+      // 'fr',
+      // 'cs',
+      // 'de',
+      // 'da',
+      // 'es',
+      // 'he',
+      // 'id',
+      // 'it',
+      // 'ja',
+      // 'ko',
+      // 'ms',
+      // 'nl',
+      // 'no',
+      // 'pl',
+      // 'pt-BR',
+      // 'pt',
+      // 'ru',
+      // 'sk',
+      // 'sv',
+      // 'th',
+      // 'tr',
+      // 'uk',
+      // 'vi',
+      // 'zh-Hans',
+      // 'zh',
+    ],
+  },
+  bootstrap(app: StrapiApp) {
+    console.log(app);
+  },
+};