feat: Update PDF processing to improve status updates during audio generation

_app.py

@@ -32,8 +32,8 @@ def main():
             try:
                 explanations = extractor.generate_explanations(extracted_text)
                 
-                # Show explanations immediately, audio loading
-                yield extracted_text, status, explanations, gr.update(value="Generating audio..."), gr.update(visible=False)
+                # Show explanations immediately, update status for audio loading
+                yield extracted_text, gr.update(value="Generating audio..."), explanations, None, gr.update(visible=False)
                 
                 # Step 3: Generate audio
                 try:
@@ -53,12 +53,12 @@ def main():
                     
                     audio_result = generate_tts_audio(clean_text, None)
                     
-                    # Show everything
-                    yield extracted_text, status, explanations, audio_result, gr.update(visible=True)
+                    # Show everything, update status to complete
+                    yield extracted_text, gr.update(value="All steps complete!"), explanations, audio_result, gr.update(visible=True)
                     
                 except Exception as audio_error:
-                    # Show explanations, but indicate audio error
-                    yield extracted_text, status, explanations, f"Error generating audio: {str(audio_error)}", gr.update(visible=False)
+                    # Show explanations, update status with audio error
+                    yield extracted_text, gr.update(value=f"Audio generation failed: {str(audio_error)}"), explanations, None, gr.update(visible=False)
                     
             except Exception as explanation_error:
                 # Show extracted text, but indicate explanation error