refactor: extract shared entry-map partial (Phase 2)

trip.html.twig and home.html.twig hand-wrote near-identical map-column
markup + a MapUtils.initEntryMap() invocation. Extract both into
partials/entry-map.html.twig, parameterised (map id, global, entries,
gpx config, story markers). Callers now pass resolved header values.

The map engine (js/map.js initEntryMap) is unchanged; emitted config is
byte-equivalent to the previous inline scripts. Verified: trip-map,
home-map and window.tripMap/homeMap Playwright tests pass; both pages 200.

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

themes/intotheeast/templates/home.html.twig

@@ -60,16 +60,18 @@
 {% endif %}
 
 <div class="home-layout">
-    <div class="home-map-col">
-        <div class="home-map" id="home-map">
-            <button class="feed-map-fullscreen-btn" id="home-map-fullscreen" aria-label="Expand map">
-                <svg class="feed-map-fs-open" aria-hidden="true" width="14" height="14" viewBox="0 0 14 14" fill="currentColor">
-                    <path d="M0 0v4h1.5V1.5H4V0z M14 0H10v1.5h2.5V4H14z M0 14v-4h1.5v2.5H4V14z M14 14H10v-1.5h2.5V10H14z"/>
-                </svg>
-                <span class="feed-map-fs-close" aria-hidden="true">✕</span>
-            </button>
-        </div>
-    </div>
+    {% include 'partials/entry-map.html.twig' with {
+        map_id: 'home-map',
+        map_global: 'homeMap',
+        entries: map_entries,
+        card_prefix: 'entry-',
+        story_markers: false,
+        gpx_urls: home_gpx_urls,
+        use_gpx: trip and trip.header.use_gpx is not null ? trip.header.use_gpx : true,
+        autoconnect: trip ? (trip.header.autoconnect ?? 'on') : 'on',
+        gpx_source_prefix: 'home-gpx',
+        journey_id: 'home-journey'
+    } only %}
 
     {% if all_items|length == 0 %}
         {% include 'partials/home-predeparture.html.twig' with {
@@ -90,26 +92,6 @@
     {% endif %}
 </div>
 
-{% if map_entries|length > 0 %}
-<script>
-var HOME_ENTRIES  = {{ map_entries|json_encode|raw }};
-var HOME_GPX_URLS = {{ home_gpx_urls|json_encode|raw }};
-var USE_GPX       = {{ trip and trip.header.use_gpx is not null ? (trip.header.use_gpx ? 'true' : 'false') : 'true' }};
-var AUTOCONNECT   = "{{ trip ? (trip.header.autoconnect ?? 'on') : 'on' }}";
-
-document.addEventListener('DOMContentLoaded', function() {
-    window.homeMap = MapUtils.initEntryMap({
-        container:  'home-map',
-        entries:    HOME_ENTRIES,
-        cardPrefix: 'entry-',
-        fullscreen: { btnId: 'home-map-fullscreen', colSelector: '.home-map-col' },
-        gpx:        { urls: HOME_GPX_URLS, use: USE_GPX, autoconnect: AUTOCONNECT, sourcePrefix: 'home-gpx', journeyId: 'home-journey' },
-        fit:        { padding: 60, maxZoom: 11, singleZoom: 10 }
-    });
-}); // DOMContentLoaded
-</script>
-{% endif %}
-
 {% else %}
 {# ══════════════════════════════════════════════════════ BETWEEN-TRIPS MODE #}