try and get more debug info

OpenJibo/src/Jibo.Cloud/dotnet/src/Jibo.Cloud.Api/appsettings.json

@@ -19,7 +19,8 @@
       "WhisperCliPath": "/usr/bin/whisper.cpp/build/bin/whisper-cli",
       "WhisperModelPath": "/usr/bin/whisper.cpp/models/ggml-base.en.bin",
       "WhisperLanguage": "en",
-      "TempDirectory": "/tmp/openjibo-stt"
+      "TempDirectory": "/tmp/openjibo-stt",
+      "CleanupTempFiles": false
     }
   }
 }

OpenJibo/src/Jibo.Cloud/dotnet/src/Jibo.Cloud.Infrastructure/Audio/BufferedAudioSttOptions.cs

@@ -8,4 +8,5 @@ public sealed class BufferedAudioSttOptions
     public string? WhisperModelPath { get; set; }
     public string WhisperLanguage { get; set; } = "en";
     public string? TempDirectory { get; set; }
+    public bool CleanupTempFiles { get; set; }
 }

OpenJibo/src/Jibo.Cloud/dotnet/src/Jibo.Cloud.Infrastructure/Audio/LocalWhisperCppBufferedAudioSttStrategy.cs

@@ -75,8 +75,11 @@ public sealed class LocalWhisperCppBufferedAudioSttStrategy(
         }
         finally
         {
-            TryDelete(oggPath);
-            TryDelete(wavPath);
+            if (options.CleanupTempFiles)
+            {
+                TryDelete(oggPath);
+                TryDelete(wavPath);
+            }
         }
     }