Add error handling in embedding calculation within WhisperTranscriber. Log exceptions and diarization segments for better debugging.

app.py

@@ -450,7 +450,9 @@ class WhisperTranscriber:
                     # fallback to first embedding
                     speaker_embeddings[spk] = embs[0].cpu().tolist()
                 print(speaker_embeddings[spk])
-        except Exception:
+        except Exception as e:
+            print(f"Error during embedding calculation: {e}")
+            print(f"Diarization segments: {diarize_segments}")
             pass
         
         diarization_time = time.time() - start_time