feat: support middle-click on bookmark open buttons

web/app.js

@@ -1512,6 +1512,32 @@ function openBookmarkQueries(baseQuery) {
   return opened;
 }
 
+function bindMiddleMouseOpen(element, handler) {
+  if (!element || typeof handler !== 'function') {
+    return;
+  }
+
+  // Prevent browser auto-scroll so middle click behaves like link-open here.
+  element.addEventListener('mousedown', (event) => {
+    if (event.button === 1) {
+      event.preventDefault();
+    }
+  });
+
+  element.addEventListener('auxclick', (event) => {
+    if (event.button !== 1) {
+      return;
+    }
+    event.preventDefault();
+    event.stopPropagation();
+    handler();
+  });
+}
+
+if (typeof window !== 'undefined') {
+  window.bindMiddleMouseOpen = bindMiddleMouseOpen;
+}
+
 function openBookmark(bookmark) {
   if (!bookmark) {
     return;
@@ -1611,7 +1637,9 @@ function createBookmarkRow(bookmark) {
     openButton.title = searchVariants.map((variant) => `• ${variant}`).join('\n');
   }
 
-  openButton.addEventListener('click', () => openBookmark(bookmark));
+  const handleOpenBookmark = () => openBookmark(bookmark);
+  openButton.addEventListener('click', handleOpenBookmark);
+  bindMiddleMouseOpen(openButton, handleOpenBookmark);
 
   const label = document.createElement('span');
   label.className = 'bookmark-row__label';

web/daily-bookmarks.js

@@ -808,13 +808,17 @@
       openBtn.textContent = '🔗';
       openBtn.title = isActive ? 'Öffnen' : 'Deaktiviert';
       openBtn.disabled = !isActive;
-      openBtn.addEventListener('click', () => {
+      const handleOpenBookmark = () => {
         const target = item.resolved_url || item.url_template;
         if (!isActive) return;
         if (target) {
           window.open(target, '_blank', 'noopener');
         }
-      });
+      };
+      openBtn.addEventListener('click', handleOpenBookmark);
+      if (typeof window.bindMiddleMouseOpen === 'function') {
+        window.bindMiddleMouseOpen(openBtn, handleOpenBookmark);
+      }
       actionsTd.appendChild(openBtn);
 
       const toggleBtn = document.createElement('button');

web/trade-fairs.js

@@ -1650,13 +1650,17 @@
       button.className = 'bookmark-subpage__messe-link';
       button.textContent = query;
       button.title = getTradeFairHoverTitle(row);
-      button.addEventListener('click', () => {
+      const handleOpenTradeFair = () => {
         const opened = openTradeFairSearch(row, query);
         if (opened > 0) {
           button.title = getTradeFairHoverTitle(row);
           render();
         }
-      });
+      };
+      button.addEventListener('click', handleOpenTradeFair);
+      if (typeof window.bindMiddleMouseOpen === 'function') {
+        window.bindMiddleMouseOpen(button, handleOpenTradeFair);
+      }
       linksWrap.appendChild(button);
 
       if (index < bookmarkQueries.length - 1) {