- robots.txt now also points at a real sitemap.xml (public pages
only: /, /download, /themes, /showcase) and disallows the
auth-gated routes (/account, /configs, /link) that have nothing
useful to a crawler
- canonical <link> on the root page
- SoftwareApplication JSON-LD so Google can render a rich result
(name, free price, icon) instead of a plain blue link
Claude-Session: https://claude.ai/code/session_01F1M1Jic1wTSn4igUENynmZ
