B44 · App pages — Landing #51

Checklist item: B44-a — scope + DoD per workspace CHECKLIST.md (source of truth; never enters the repo)
Milestone: Phase 5 — UI
Blocked by: #57 (B47 · DF-7 breakpoints + switchers)

The Big Idea

Landing page: what db-sync is, current version state, paths in.

Details

The front door. States what cardano-db-sync is, links the four consumer surfaces (schema explorer, guides, survey, numbers), and carries the environment banner contract from B05. Copy tone per CONTENT-5.

Source: CHECKLIST.md, item B44-a; blocked by B47.

Recommend tests

• Renders at all three breakpoints; axe clean ×4 palettes.
• Links resolve; banner correct per profile.

Potential code references, but use your judgement

• None yet — greenfield within the new docs/ tree; add references as the area takes shape.

Definition of Done

• Formatted (prettier / fourmolu)
• Static analysis clean (tsc --noEmit · eslint · hlint), no new warnings
• Unit tested; coverage does not regress
• Cited criteria verified — by test or recorded measurement, not inspection
• CI green end to end
• No previously-satisfied criterion broken; generated artifacts still regenerate byte-identical
• Part of B44 — closes with it