Add error handling to debug button

Added:
- Console log when button is clicked
- Console log showing button element
- Try-catch wrapper around the function
- Error logging with stack trace

This will show if the button click is detected and where it fails!

content.js

@@ -111,7 +111,13 @@
       if (btnDebugPages) {
         btnDebugPages.addEventListener('click', (e) => {
           console.log('🎯 BUTTON CLICKED: Debug Contar Páginas');
+          console.log('📝 Button element:', btnDebugPages);
+          try {
             debugCountPagesForAllManga();
+          } catch (error) {
+            console.error('❌❌❌ Error in debugCountPagesForAllManga:', error);
+            console.error('Stack:', error.stack);
+          }
         });
       } else {
         console.error('❌ btnDebugPages not found!');