added robots.txt and sitemap

public/robots.txt

@@ -0,0 +1,112 @@
+# Block all bots by default
+User-agent: *
+Disallow: /
+
+# Allow legitimate search engines (for discoverability)
+User-agent: Googlebot
+Allow: /
+Crawl-delay: 10
+
+User-agent: Bingbot
+Allow: /
+Crawl-delay: 15
+
+User-agent: DuckDuckBot
+Allow: /
+Crawl-delay: 10
+
+User-agent: Slurp
+Allow: /
+Crawl-delay: 20
+
+User-agent: Applebot
+Allow: /
+Crawl-delay: 15
+
+User-agent: Brave
+Allow: /
+Crawl-delay: 10
+
+User-agent: StartPageBot
+Allow: /
+Crawl-delay: 10
+
+User-agent: Qwantbot
+Allow: /
+Crawl-delay: 15
+
+# Block Chinese/Russian search engines
+User-agent: Baiduspider
+Disallow: /
+
+User-agent: YandexBot
+Disallow: /
+
+# Block SEO and analysis tools (these provide no value)
+User-agent: AhrefsBot
+Disallow: /
+
+User-agent: SemrushBot
+Disallow: /
+
+User-agent: MJ12bot
+Disallow: /
+
+User-agent: DotBot
+Disallow: /
+
+User-agent: BLEXBot
+Disallow: /
+
+User-agent: SiteAuditBot
+Disallow: /
+
+User-agent: MegaIndex
+Disallow: /
+
+User-agent: SiteAuditBot
+Disallow: /
+
+User-agent: PetalBot
+Disallow: /
+
+User-agent: CCBot
+Disallow: /
+
+User-agent: GPTBot
+Disallow: /
+
+User-agent: ChatGPT-User
+Disallow: /
+
+User-agent: Google-Extended
+Disallow: /
+
+User-agent: Claude-Web
+Disallow: /
+
+# Block social media crawlers (optional - they help with link previews)
+User-agent: facebookexternalhit
+Disallow: /
+
+User-agent: Twitterbot
+Disallow: /
+
+User-agent: LinkedInBot
+Disallow: /
+
+User-agent: WhatsApp
+Disallow: /
+
+# Block archiving services
+User-agent: ia_archiver
+Disallow: /
+
+User-agent: archive.org_bot
+Disallow: /
+
+User-agent: WaybackMachine
+Disallow: /
+
+# Sitemap location
+Sitemap: https://juchatz.com/sitemap.xml