Add SEO baseline + rebuild www/ (mobile toc/prefs polish, responsive viewport)

SEO: robots.txt, sitemap.xml, canonical, OG/Twitter tags, JSON-LD
(ProfessionalService) on / and /folders/, plus a reused screenshot as
og-image.png. prepare-www.mjs now copies robots/sitemap/og-image into
the build. Also carries pending mobile layout tweaks (toc/prefs bar,
viewport-fit=cover) that were already staged in the working tree.
This commit is contained in:
2026-07-08 10:58:46 -04:00
parent 6a571de240
commit 6949bee6e6
22 changed files with 507 additions and 94 deletions
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