Fix tracker action row wrapping and dedupe AI/action containers

extension/content.js

@@ -854,20 +854,39 @@ function ensureTrackerActionsContainer(container) {
     return null;
   }
 
-  let actionsContainer = container.querySelector('.fb-tracker-actions-end');
+  const existingContainers = Array.from(container.querySelectorAll('.fb-tracker-actions-end'))
+    .filter((candidate) => candidate && candidate.closest('.fb-tracker-ui') === container);
+
+  let actionsContainer = existingContainers.length > 0 ? existingContainers[0] : null;
   if (actionsContainer && actionsContainer.isConnected) {
-    return actionsContainer;
+    existingContainers.slice(1).forEach((duplicate) => {
+      while (duplicate.firstChild) {
+        actionsContainer.appendChild(duplicate.firstChild);
+      }
+      duplicate.remove();
+    });
+  } else {
+    actionsContainer = null;
+  }
+
+  if (!actionsContainer) {
+    actionsContainer = document.createElement('div');
+    actionsContainer.className = 'fb-tracker-actions-end';
+    container.appendChild(actionsContainer);
   }
 
-  actionsContainer = document.createElement('div');
-  actionsContainer.className = 'fb-tracker-actions-end';
   actionsContainer.style.cssText = `
     margin-left: auto;
-    display: inline-flex;
+    display: flex;
     align-items: center;
+    justify-content: flex-end;
     gap: 8px;
+    flex-wrap: wrap;
+    min-width: 0;
+    max-width: 100%;
+    flex: 1 1 auto;
   `;
-  container.appendChild(actionsContainer);
+
   return actionsContainer;
 }
 
@@ -6246,6 +6265,11 @@ async function addAICommentButton(container, postElement) {
     return;
   }
 
+  const existingWrapper = actionsContainer.querySelector('.fb-tracker-ai-wrapper');
+  if (existingWrapper && existingWrapper.isConnected) {
+    return;
+  }
+
   const encodedPostUrl = container && container.getAttribute('data-post-url')
     ? container.getAttribute('data-post-url')
     : null;
@@ -6261,6 +6285,8 @@ async function addAICommentButton(container, postElement) {
     box-shadow: 0 1px 2px rgba(0, 0, 0, 0.12);
     background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
     transition: transform 0.2s ease, box-shadow 0.2s ease;
+    flex: 0 1 auto;
+    max-width: 100%;
   `;
 
   const button = document.createElement('button');