fix: add missing #spatial-search element to DOM (fixes #1510)

index.html

@@ -391,6 +391,10 @@
 <div id="archive-health-dashboard" class="archive-health-dashboard" style="display:none;" aria-label="Archive Health Dashboard"><div class="archive-health-header"><span class="archive-health-title">◈ ARCHIVE HEALTH</span><button class="archive-health-close" onclick="toggleArchiveHealthDashboard()" aria-label="Close dashboard">✕</button></div><div id="archive-health-content" class="archive-health-content"></div></div>
 <div id="memory-feed" class="memory-feed" style="display:none;"><div class="memory-feed-header"><span class="memory-feed-title">✨ Memory Feed</span><div class="memory-feed-actions"><button class="memory-feed-clear" onclick="clearMemoryFeed()">Clear</button><button class="memory-feed-toggle" onclick="document.getElementById('memory-feed').style.display='none'">✕</button></div></div><div id="memory-feed-list" class="memory-feed-list"></div></div>
 <div id="memory-filter" class="memory-filter" style="display:none;"><div class="filter-header"><span class="filter-title">⬡ Memory Filter</span><button class="filter-close" onclick="closeMemoryFilter()">✕</button></div><div class="filter-controls"><button class="filter-btn" onclick="setAllFilters(true)">Show All</button><button class="filter-btn" onclick="setAllFilters(false)">Hide All</button></div><div class="filter-list" id="filter-list"></div></div>
+<div id="spatial-search" class="spatial-search" style="display:none;">
+  <input type="text" id="spatial-search-input" placeholder="Search spatial memories..." autocomplete="off" />
+  <div id="spatial-search-results"></div>
+</div>
 <div id="memory-inspect-panel" class="memory-inspect-panel" style="display:none;" aria-label="Memory Inspect Panel"></div>
 <div id="memory-connections-panel" class="memory-connections-panel" style="display:none;" aria-label="Memory Connections Panel"></div>