Implemented the transcription API (#623)

app/MindWork AI Studio/Provider/OpenAI/ProviderOpenAI.cs

@@ -27,7 +27,7 @@ public sealed class ProviderOpenAI() : BaseProvider(LLMProviders.OPEN_AI, "https
     public override async IAsyncEnumerable<ContentStreamChunk> StreamChatCompletion(Model chatModel, ChatThread chatThread, SettingsManager settingsManager, [EnumeratorCancellation] CancellationToken token = default)
     {
         // Get the API key:
-        var requestedSecret = await RUST_SERVICE.GetAPIKey(this);
+        var requestedSecret = await RUST_SERVICE.GetAPIKey(this, SecretStoreType.LLM_PROVIDER);
         if(!requestedSecret.Success)
             yield break;
         
@@ -217,11 +217,18 @@ public sealed class ProviderOpenAI() : BaseProvider(LLMProviders.OPEN_AI, "https
     }
     
     #pragma warning restore CS1998 // Async method lacks 'await' operators and will run synchronously
+    
+    /// <inheritdoc />
+    public override async Task<string> TranscribeAudioAsync(Model transcriptionModel, string audioFilePath, SettingsManager settingsManager, CancellationToken token = default)
+    {
+        var requestedSecret = await RUST_SERVICE.GetAPIKey(this, SecretStoreType.TRANSCRIPTION_PROVIDER);
+        return await this.PerformStandardTranscriptionRequest(requestedSecret, transcriptionModel, audioFilePath, token: token);
+    }
 
     /// <inheritdoc />
     public override async Task<IEnumerable<Model>> GetTextModels(string? apiKeyProvisional = null, CancellationToken token = default)
     {
-        var models = await this.LoadModels(["chatgpt-", "gpt-", "o1-", "o3-", "o4-"], token, apiKeyProvisional);
+        var models = await this.LoadModels(SecretStoreType.LLM_PROVIDER, ["chatgpt-", "gpt-", "o1-", "o3-", "o4-"], token, apiKeyProvisional);
         return models.Where(model => !model.Id.Contains("image", StringComparison.OrdinalIgnoreCase) &&
                                      !model.Id.Contains("realtime", StringComparison.OrdinalIgnoreCase) &&
                                      !model.Id.Contains("audio", StringComparison.OrdinalIgnoreCase) &&
@@ -232,31 +239,31 @@ public sealed class ProviderOpenAI() : BaseProvider(LLMProviders.OPEN_AI, "https
     /// <inheritdoc />
     public override Task<IEnumerable<Model>> GetImageModels(string? apiKeyProvisional = null, CancellationToken token = default)
     {
-        return this.LoadModels(["dall-e-", "gpt-image"], token, apiKeyProvisional);
+        return this.LoadModels(SecretStoreType.IMAGE_PROVIDER, ["dall-e-", "gpt-image"], token, apiKeyProvisional);
     }
     
     /// <inheritdoc />
     public override Task<IEnumerable<Model>> GetEmbeddingModels(string? apiKeyProvisional = null, CancellationToken token = default)
     {
-        return this.LoadModels(["text-embedding-"], token, apiKeyProvisional);
+        return this.LoadModels(SecretStoreType.EMBEDDING_PROVIDER, ["text-embedding-"], token, apiKeyProvisional);
     }
     
     /// <inheritdoc />
     public override async Task<IEnumerable<Model>> GetTranscriptionModels(string? apiKeyProvisional = null, CancellationToken token = default)
     {
-        var models = await this.LoadModels(["whisper-", "gpt-"], token, apiKeyProvisional);
+        var models = await this.LoadModels(SecretStoreType.TRANSCRIPTION_PROVIDER, ["whisper-", "gpt-"], token, apiKeyProvisional);
         return models.Where(model => model.Id.StartsWith("whisper-", StringComparison.InvariantCultureIgnoreCase) ||
                                      model.Id.Contains("-transcribe", StringComparison.InvariantCultureIgnoreCase));
     }
     
     #endregion
 
-    private async Task<IEnumerable<Model>> LoadModels(string[] prefixes, CancellationToken token, string? apiKeyProvisional = null)
+    private async Task<IEnumerable<Model>> LoadModels(SecretStoreType storeType, string[] prefixes, CancellationToken token, string? apiKeyProvisional = null)
     {
         var secretKey = apiKeyProvisional switch
         {
             not null => apiKeyProvisional,
-            _ => await RUST_SERVICE.GetAPIKey(this) switch
+            _ => await RUST_SERVICE.GetAPIKey(this, storeType) switch
             {
                 { Success: true } result => await result.Secret.Decrypt(ENCRYPTION),
                 _ => null,