Address the independent review blockers on PR #80 after rebasing onto the
authoritative #72 Weekend Context API.
- Replace the invented frontend WeekendContext with the exact backend contract
(temporal_state, previous/focus/next meetings, previous_completed/active/next/
default_analysis sessions with availability). Every valid canonical payload now
maps to a designed state via a total resolveViewState; a well-formed response
can never fall through to the limited-data placeholder.
- Make the canonical read the single source of truth: useWeekendContext no longer
fans out to season/meetings/per-weekend/OpenF1/live queries. Only supplementary
championship + news reads run, and only once the canonical context resolves.
- Fix the Prepare/analysis flow: /preview is a stable alias that renders the
preparation surface (PreSessionView) instead of redirecting back to the same
between-races screen.
- One primary navigation system per breakpoint: the mobile top-bar links are
hidden so the bottom bar is the sole primary nav, and Admin is moved out of
every Primary landmark into an operator-utilities toolbar.
- Add Vitest coverage for the contract mapping, every temporal state, loading/
error/limited surfaces, the no-fanout guarantee, the /preview CTA, and the nav
hierarchy; add hermetic Playwright journeys (seeded + injected canonical
payloads), 390/768/1440 overflow checks, and Weekend visual snapshots. Retire
the stale Command Center specs/snapshots.
Co-authored-by: Cursor <cursoragent@cursor.com>
