chore: import upstream snapshot with attribution

docs/src/content.config.ts

@@ -0,0 +1,28 @@
+import { defineCollection } from 'astro:content';
+import { docsLoader, i18nLoader } from '@astrojs/starlight/loaders';
+import { docsSchema, i18nSchema } from '@astrojs/starlight/schema';
+
+import { changelogsLoader } from 'starlight-changelogs/loader';
+
+export const collections = {
+  docs: defineCollection({ loader: docsLoader(), schema: docsSchema() }),
+  i18n: defineCollection({ loader: i18nLoader(), schema: i18nSchema() }),
+  changelogs: defineCollection({
+    loader: changelogsLoader([
+      {
+        title: "Releases",
+        provider: 'github',
+        base: 'releases',
+        owner: 'invoke-ai',
+        repo: 'InvokeAI',
+        pagefind: false,
+        // Authenticate GitHub API requests so the release changelog loader uses
+        // the 5000 req/hr authenticated rate limit instead of the 60 req/hr
+        // unauthenticated limit (shared per CI runner IP), which causes
+        // intermittent "403 - rate limit exceeded" build failures. The token is
+        // optional, so local builds without it fall back to unauthenticated.
+        token: process.env.GITHUB_TOKEN,
+      }
+    ]),
+  })
+};