polish

Polish is not adding things. It is the list of things that are already wrong that nobody has looked at yet. Run it top to bottom; fix everything you find; do not skip an item because it seems small. Small is the point.

Document and metadata

• <title> is specific per page: "Settings — App", not "App". Updates on client navigation.
• Title reflects state where useful: an unread count, an unsaved dot ("• Untitled").
• Favicon: SVG with a dark-mode variant via prefers-color-scheme inside the SVG, plus a 32px PNG fallback and a 180px apple-touch-icon.
• Open Graph and Twitter images exist, are 1200×630, and show the page's title in the site's type, not a generic logo.
• theme-color meta for both schemes so the browser chrome matches.
• lang on <html>. color-scheme on the root.
• Canonical URLs; no duplicate content at /page and /page/.
• A 404 page in the app's frame, with a way back and a search if the app has one.

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