update: transcrip processing

app.py

@@ -172,7 +172,7 @@ class TranscriptProcessor:
             end_time_str = self._format_time(seg.end_time)
             speaker_name = getattr(seg, "speaker_name", f"spk_{seg.speaker_id}")
             formatted_segments.append(
-                f"time_stamp: {start_time_str}-{end_time_str}\n"
+                f"Start Time: {start_time_str} - End Time: {end_time_str}\n"
                 f"{speaker_name}: {seg.text}\n"
             )
         self.formatted_transcript = "\n".join(formatted_segments)