Remove mobile notes close button

static/js/notes.js

@@ -1127,7 +1127,6 @@ export function openPanel() {
         <span class="notes-header-btn-label">Toggle</span>
       </button>
       <button id="notes-minimize-btn" class="modal-minimize-btn" title="Minimize" aria-label="Minimize notes" style="position:relative;left:2px;"><svg width="12" height="12" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="3.4" stroke-linecap="round" aria-hidden="true"><line x1="6" y1="18" x2="18" y2="18"/></svg></button>
-      <button id="notes-close-btn" class="close-btn" title="Close" aria-label="Close notes">×</button>
     </div>
     <div class="notes-search-bar">
       <input type="text" id="notes-search" class="memory-search-input" placeholder="Search notes…" autocomplete="off" />
@@ -1190,13 +1189,6 @@ export function openPanel() {
     e.stopPropagation();
     closePanel('down');
   });
-  const closeBtn = document.getElementById('notes-close-btn');
-  if (closeBtn) closeBtn.addEventListener('click', (e) => {
-    e.preventDefault();
-    e.stopPropagation();
-    _forceCloseNotesPanel();
-  });
-
   // Search
   const searchEl = document.getElementById('notes-search');
   if (searchEl) {

static/style.css

@@ -28373,14 +28373,6 @@ body.notes-view .chat-container { flex: 1; min-width: 0; }
   body.notes-view .hamburger-btn {
     display: none !important;
   }
-  body.notes-view #notes-close-btn {
-    display: inline-flex !important;
-    align-items: center;
-    justify-content: center;
-    font-size: 22px;
-    font-weight: 300;
-    line-height: 1;
-  }
 }
 /* ── Mobile notes UX ────────────────────────────────────
    Tiles become read-only previews on touch ≤768px wide.