Site: security.txt, robots.txt, and favicon fallbacks (ICO, touch icon)

security.txt (RFC 9116) under .well-known with the mailbox as contact and an
expiry in September 2027. robots.txt allows everything and points to the
sitemap. The pixel 9 gets a favicon.ico (32 and 48 px) and an
apple-touch-icon.png, drawn by tools/make_favicons.py from the same
rectangles as favicon.svg.

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01EhqxQ49eCju4CzKYNjZzwT

site/templates/base.html

@@ -10,6 +10,8 @@
 <meta name="copyright" content="© 2026 Clément Martin">
 {% if current_url %}<link rel="canonical" href="{{ current_url }}">{% endif %}
 <link rel="icon" href="/img/favicon.svg" type="image/svg+xml">
+<link rel="icon" href="/favicon.ico" sizes="32x32 48x48">
+<link rel="apple-touch-icon" href="/apple-touch-icon.png">
 <link rel="preload" href="/fonts/DMMono-Medium.woff2" as="font" type="font/woff2" crossorigin>
 <link rel="preload" href="/fonts/HankenGrotesk.woff2" as="font" type="font/woff2" crossorigin>
 <link rel="stylesheet" href="/css/site.css">