feat(site): horário sem barra de dias em cima, CrossFit ganha contactos

- Horário de aulas (home e CrossFit, mesmo componente partilhado): removida
  a barra de botões Seg/Ter/Qua/Qui/Sex/Sab acima da grelha — o próprio
  cabeçalho do dia (já existente) passa a ser sempre visível (antes só em
  desktop, 3 dias) e ganha setas ‹ › ao lado do nome do dia para mudar de
  dia em ecrãs de telemóvel/tablet. No desktop (3 dias lado a lado) as
  setas ficam escondidas — clicar no dia lateral já muda o dia em foco.
  CSS/JS morto do botão-filtro removido.
- Informações e contactos extraído para site/includes/contactos.php,
  partilhado pela home e pelo CrossFit — a página CrossFit ganha a mesma
  secção de contactos (localização, telefone, e-mail, horário de
  funcionamento, mapa, formulário) em vez de só linkar de volta à home.
  Hero e restantes secções do CrossFit não foram tocados.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

site/assets/css/style.css

@@ -2699,7 +2699,6 @@ h3.contact-title {
   width: 100% !important;
 }
 
-.schedule-export .schedule-day-filter,
 .schedule-export .schedule-scroll-hint {
   display: none !important;
 }
@@ -2730,43 +2729,6 @@ h3.contact-title {
   align-items: center !important;
 }
 
-/* ── Schedule day filter — one day on screen, picker bar to switch ─────────────
-   On screen the schedule shows a single day with a clickable day-picker bar (the
-   same behaviour the phone had, now at every width). The JPG export ignores all
-   of this — it re-enables the full-week grid via .schedule-export — so the
-   downloaded image is always the complete week. */
-.schedule-day-filter {
-  display: flex;
-  flex-wrap: wrap;
-  gap: 8px;
-  justify-content: center;
-  margin: 0 0 1.75rem;
-}
-
-.sdf-btn {
-  border: 1px solid var(--fitme-surface-2);
-  background: #fff;
-  color: var(--fitme-text-soft);
-  font-weight: 700;
-  font-size: .9rem;
-  padding: 9px 20px;
-  min-height: 44px;
-  border-radius: var(--fitme-radius);
-  cursor: pointer;
-  transition: border-color var(--fitme-transition), color var(--fitme-transition);
-}
-
-.sdf-btn:hover {
-  border-color: var(--fitme-accent);
-  color: var(--fitme-text);
-}
-
-.sdf-btn.active {
-  background: var(--fitme-accent);
-  border-color: var(--fitme-accent);
-  color: var(--fitme-dark);
-}
-
 /* On-screen single-day layout — one centred column showing the chosen day's
    classes in time order, keeping the Manhã / Tarde dividers as section breaks.
    Scoped to :not(.schedule-export) so the capture clone keeps the full week. */
@@ -2819,12 +2781,39 @@ h3.contact-title {
   display: none !important;
 }
 
-/* Single-day mode: the active day-filter button already names the day being
-   shown — drop the redundant title above the grid. Kept for the 3-day desktop
-   view (.is-3day), where the header also distinguishes three different days
-   and the side ones stay clickable. */
+/* Single-day mode: no day-filter bar any more (audit UX pass) — the header
+   itself is the only day switcher, so it always shows, with prev/next arrows
+   beside the day name. Kept plain (no arrows) for the 3-day desktop view
+   (.is-3day), where the side days are already directly clickable. */
 .schedule:not(.schedule-export):not(.is-3day) .schedule_dayhead {
-  display: none !important;
+  gap: 10px;
+  align-items: center;
+}
+
+.schedule.is-3day .sched-nav,
+.schedule-export .sched-nav {
+  display: none;
+}
+
+.sched-nav {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  width: 44px;
+  height: 44px;
+  border: none;
+  border-radius: var(--fitme-radius);
+  background: var(--fitme-surface-2);
+  color: var(--fitme-text-soft);
+  font-size: 1rem;
+  cursor: pointer;
+  transition: background var(--fitme-transition), color var(--fitme-transition);
+  flex: 0 0 auto;
+}
+
+.sched-nav:hover {
+  background: var(--fitme-accent);
+  color: var(--fitme-dark);
 }
 
 .schedule-scroll-hint {