feat: implementar SEO completo com sitemap, robots.txt, JSON-LD schema e Google Search Console docs

frontend/public/robots.txt

@@ -0,0 +1,24 @@
+# Octto Engenharia - SEO Configuration
+# https://www.robotstxt.org/
+
+User-agent: *
+Allow: /
+Disallow: /admin
+Disallow: /api
+Disallow: /*.pdf
+Disallow: /*.jpg
+
+# Specific crawlers
+User-agent: Googlebot
+Allow: /
+
+User-agent: Bingbot
+Allow: /
+
+# Sitemap
+Sitemap: https://octto-engenharia.com/sitemap.xml
+Sitemap: https://octto-engenharia.com/en/sitemap.xml
+Sitemap: https://octto-engenharia.com/es/sitemap.xml
+
+# Crawl delay (optional)
+Crawl-delay: 1