Initial import of fitme3070.pt platform

Plain-PHP fleet platform with id.andmore.pt SSO. Wires shared/platform-tools
as a submodule (platform_update, backups, git/migration tools) like the other
platforms.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

site/includes/gallery.php

@@ -0,0 +1,46 @@
+<?php
+// Gallery partial — Splide CSS/JS is loaded centrally by include.php / footer.php.
+// Slides use Splide's native lazy loading (data-splide-lazy + cover), so only
+// the visible/nearby images are downloaded instead of the whole gallery.
+$files = glob(rtrim($gallery_path, '/') . '/*.jpg');
+if (!$files || !is_array($files)) $files = [];
+?>
+<div class="row justify-content-md-center" style="margin-top: 58px">
+  <div class="col-lg-8">
+    <div class="section-title text-center deco">
+      <span class="section-eyebrow">Galeria</span>
+      <h2><?= htmlspecialchars($gallery_h2 ?? 'Galeria') ?></h2>
+      <p class="section-subtitle">Espaço amplo, equipamento moderno e um ambiente feito para treinar.</p>
+    </div>
+  </div>
+</div>
+<div id="primary-slider" class="splide" style="padding:0;">
+  <div class="splide__track">
+    <ul class="splide__list">
+      <?php foreach($files as $f): ?>
+      <li class="splide__slide"><img src="<?= base_url($f) ?>" alt="Instalações FitMe 3070"></li>
+      <?php endforeach; ?>
+    </ul>
+  </div>
+</div>
+<script>
+document.addEventListener('DOMContentLoaded', function () {
+    var isMobile = window.innerWidth < 768;
+    // Single auto-playing slider (no thumbnail strip). Real <img src> + cover
+    // paints the first big image on mount; autoplay cross-fades through the
+    // rest and rewinds at the end. Pauses on hover/focus for accessibility.
+    new Splide('#primary-slider', {
+        type: 'fade',
+        rewind: true,
+        heightRatio: isMobile ? 0.7 : 0.5,
+        cover: true,
+        arrows: !isMobile,
+        pagination: true,
+        autoplay: true,
+        interval: 4500,
+        speed: 800,
+        pauseOnHover: true,
+        pauseOnFocus: true
+    }).mount();
+});
+</script>