Adds static/js/member-detail.js: fetches /api/<page> once on page load,
caches the response, and renders a per-member detail modal on [i] row click.
Keyboard nav: Esc closes, ↑/↓ walk visible (filtered) rows. All modal CSS
was already in place from M6.1.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
- Extract AssembleAdults(ctx) from ServeAdults so HTML and JSON API share one reconcile path.
- HTMLHandler gains *api.Handler; ServeAdults loads real data and renders adults.tmpl.
- AdultsPageData view model + qrHref/qrHrefAll funcMap (URL-encode /qr params, YYYY-MM→MM/YYYY).
- adults.tmpl: full reconcile table, per-cell status classes + cell-unpaid-current, Pay button hrefs,
totals row, credits/debts/unmatched sections, filter controls, sheet links.
- static/js/filters.js: NFD-normalize name filter + month-range column hiding; future months hidden by default.
- TestAdultsPage asserts member name and cell text against fixture data.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
