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/vite.config.example.ts

@@ -0,0 +1,12 @@
+import { mergeConfig, type UserConfig } from 'vite';
+
+export default (config: UserConfig) => {
+  // Important: always return the modified config
+  return mergeConfig(config, {
+    resolve: {
+      alias: {
+        '@': '/src',
+      },
+    },
+  });
+};