Scaffold the post-Cup stats screen (.agents/stats-screen-plan.md) on the
feature/stats-final-screen branch.
- loadData(): fault-tolerant optional data layers (players, player-events,
awards, keeper-stats, curiosities, all-time-baselines) via loadOptional() —
an absent/404 file defaults to empty SILENTLY (graceful degradation, keeps
the console clean), warning only on a present-but-malformed file. The 6 core
files still throw on failure.
- stats.js SECTIONS registry: a section and its sub-nav chip render only when
available(model) holds, else they are omitted from the DOM entirely (no
placeholder / no coming-soon). Overview/Teams live; the 4 future sections
stay dark until later stages.
- Sticky scrollspy sub-nav: hash-safe anchor chips (preventDefault +
scrollIntoView, never touch location.hash so the tab router does not bounce
to Home); position-based scrollspy with an explicit page-bottom -> last
section rule (robust on short pages). --header-h kept live via a
ResizeObserver so the nav sticks correctly under the variable-height header.
- flagImg() monogram fallback: a broken flag SVG becomes a 3-letter code span,
never a broken-image icon.
- i18n stats.nav* keys (EN/PT); stats.css for sub-nav / section / fallback.
No DATA_VERSION bump (no deployed data changed). No index.html change.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
