add post and extra legal, revamp home page

static/robots.txt

@@ -0,0 +1,42 @@
+# All content on fosscat.com is the work of its author.
+# Scraping, crawling, or collecting content from this site for
+# commercial purposes — including AI/ML model training, data brokerage,
+# or any for-profit data exploitation — is expressly prohibited,
+# regardless of whether your user-agent is listed below.
+
+# AI and data scrapers — disallowed
+User-agent: GPTBot
+Disallow: /
+
+User-agent: CCBot
+Disallow: /
+
+User-agent: Google-Extended
+Disallow: /
+
+User-agent: anthropic-ai
+Disallow: /
+
+User-agent: Claude-Web
+Disallow: /
+
+User-agent: Omgilibot
+Disallow: /
+
+User-agent: FacebookBot
+Disallow: /
+
+User-agent: Bytespider
+Disallow: /
+
+User-agent: DataForSeoBot
+Disallow: /
+
+User-agent: PetalBot
+Disallow: /
+
+# All other crawlers (search engines, etc.) — allowed
+User-agent: *
+Allow: /
+
+Sitemap: https://fosscat.com/sitemap.xml