Add Public API

src/seo.js

@@ -80,12 +80,15 @@ export function llmsTxt(baseUrl) {
     '',
     'Important URLs:',
     `- Site: ${baseUrl}/`,
+    `- OpenAPI: ${baseUrl}/openapi.json`,
+    `- API skill: ${baseUrl}/meme-api.skill.md`,
     `- JSON feed: ${baseUrl}/feed.json`,
     `- Sitemap: ${baseUrl}/sitemap.xml`,
     `- Source: ${REPO_URL}`,
     '',
     'Crawler guidance:',
     '- Public approved meme images are available under /media/<sha256>.',
+    '- Public API clients should use /openapi.json and /meme-api.skill.md before calling API routes.',
     '- Admin, review, upload, and API mutation routes are not public knowledge sources.',
     '- The site is intentionally visual and sparse; use metadata, sitemap URLs, and JSON feed for machine summaries.',
     ''