SEO: add indexable content (feature/use-case pages, FAQ, blog)

[johnfire]

Technical SEO foundation is done (meta, OG cards, robots, sitemap, JSON-LD, per-route canonicals, code-split landing, GSC verified + sitemap submitted). The remaining ranking lever is indexable content targeting real search queries.

Goal

Give Google actual content to rank for instead of just the one-screen landing page.

Tasks

• Feature / use-case pages (e.g. "note taking app", "task manager", "reminders app") — each a real route with unique <title>/description via the existing Seo component
• FAQ section/page with FAQPage JSON-LD structured data
• Short blog or "guides" section (optional, higher effort) for ongoing content
• Ensure every new public route is added to packages/web/public/sitemap.xml
• Strong semantic headings (single h1, descriptive h2s) and image alt text on each page

Notes

• Reuse packages/web/src/components/Seo.tsx for per-route meta.
• Iterate titles/descriptions from real Search Console query data after a couple weeks.

[johnfire]

Use-case pages (/notes-app, /task-manager, /reminders) and /faq (with FAQPage JSON-LD) shipped, wired into routing and the sitemap, with internal links from the landing footer. English-only for now — iterate copy from Search Console data in a couple of weeks. Blog/guides deferred to #67.

Spec: docs/superpowers/specs/2026-06-09-seo-indexable-content-design.md
Plan: docs/superpowers/plans/2026-06-09-seo-indexable-content.md