refactor: extract hardcoded content into astro content collections

src/content.config.ts

@@ -0,0 +1,19 @@
+import { defineCollection, z } from 'astro:content'
+import { glob } from 'astro/loaders'
+
+const vendorSchema = z.object({
+  name: z.string(),
+  description: z.string(),
+  products: z.array(z.string()).optional(),
+})
+
+const categories = defineCollection({
+  loader: glob({ pattern: '**/*.json', base: './src/content/categories' }),
+  schema: z.object({
+    title: z.string(),
+    description: z.string(),
+    vendors: z.array(vendorSchema),
+  }),
+})
+
+export const collections = { categories }