Update app.py

app.py

@@ -384,7 +384,6 @@ HTML_TEMPLATE = """
             </div>
         </div>
     </div>
-
     <script>
         let currentCacheId = null;
         
@@ -443,7 +442,7 @@ HTML_TEMPLATE = """
                     showSuccess('PDF uploaded and cached successfully!');
                     
                     // Add initial message
-                    addMessage("I've analyzed your PDF document. What would you like to know about it?", 'ai');
+                    addMessage('I\'ve analyzed your PDF document. What would you like to know about it?', 'ai');
                 } else {
                     showError(result.error);
                 }
@@ -482,7 +481,7 @@ HTML_TEMPLATE = """
                     showSuccess('PDF uploaded and cached successfully!');
                     
                     // Add initial message
-                    addMessage("I've analyzed your PDF document. What would you like to know about it?", 'ai');
+                    addMessage('I\'ve analyzed your PDF document. What would you like to know about it?', 'ai');
                 } else {
                     showError(result.error);
                 }