single snapshot test

plugins/owncloud-attach/ui/toolbar.js

@@ -0,0 +1,19 @@
+(function(){
+  const runtime = window.MAILCOW_PLUGIN_RUNTIME;
+  if (!runtime) return;
+  runtime.registerMount('owncloud-attach','mail.compose.toolbar','toolbar-button', async (target, context) => {
+    target.innerHTML = '';
+    const button = document.createElement('button');
+    button.className = 'owncloud-attach-button';
+    button.textContent = context.contribution.label || 'ownCloud';
+    button.addEventListener('click', async () => {
+      const panelTarget = document.querySelector('[data-plugin-target="owncloud-attach:mail.compose.attachments:attachments-panel"]');
+      if (panelTarget) {
+        panelTarget.scrollIntoView({ behavior: 'smooth', block: 'center' });
+        panelTarget.classList.add('owncloud-flash');
+        setTimeout(() => panelTarget.classList.remove('owncloud-flash'), 1200);
+      }
+    });
+    target.appendChild(button);
+  });
+})();