Fix: Stabilize useAdminSettings dependencies

src/hooks/moderation/useModerationQueueManager.ts

@@ -806,21 +806,26 @@ export function useModerationQueueManager(
   
   // Visibility change handler
   useEffect(() => {
-    console.log('🔍 [VISIBILITY EFFECT] Running', {
-      settingsObject: settings,
+    // HARD CHECK: Explicit boolean comparison to prevent any truthy coercion
+    const isEnabled = settings.refreshOnTabVisible === true;
+    
+    console.log('🔍 [VISIBILITY EFFECT] Hard check', {
       refreshOnTabVisible: settings.refreshOnTabVisible,
       typeOf: typeof settings.refreshOnTabVisible,
-      rawValue: JSON.stringify(settings.refreshOnTabVisible),
-      stringValue: String(settings.refreshOnTabVisible),
-      boolValue: Boolean(settings.refreshOnTabVisible),
+      isEnabled,
+      willAttachListener: isEnabled,
       timestamp: new Date().toISOString()
     });
     
     // Early return if feature is disabled
-    if (!settings.refreshOnTabVisible) {
-      console.log('   ✅ Setting is FALSE - NO listener will be attached');
+    if (!isEnabled) {
+      console.log('   ✅ Feature DISABLED - skipping all visibility logic');
       console.log('   ✅ Tab focus will NOT trigger refreshes');
-      return;
+      
+      // Cleanup: ensure no lingering handlers
+      return () => {
+        console.log('   🧹 Cleanup: Ensuring no visibility listeners exist');
+      };
     }
     
     console.error('   ❌ Setting is TRUE - listener WILL be attached');