Added transcription providers (#619)

app/MindWork AI Studio/Settings/DataModel/Data.cs

@@ -25,6 +25,11 @@ public sealed class Data
     /// A collection of embedding providers configured.
     /// </summary>
     public List<EmbeddingProvider> EmbeddingProviders { get; init; } = [];
+    
+    /// <summary>
+    /// A collection of speech providers configured.
+    /// </summary>
+    public List<TranscriptionProvider> TranscriptionProviders { get; init; } = [];
 
     /// <summary>
     /// A collection of data sources configured.
@@ -52,9 +57,14 @@ public sealed class Data
     public uint NextProviderNum { get; set; } = 1;
 
     /// <summary>
-    /// The next embedding number to use.
+    /// The next embedding provider number to use.
     /// </summary>
     public uint NextEmbeddingNum { get; set; } = 1;
+    
+    /// <summary>
+    /// The next transcription provider number to use.
+    /// </summary>
+    public uint NextTranscriptionNum { get; set; } = 1;
 
     /// <summary>
     /// The next data source number to use.

app/MindWork AI Studio/Settings/DataModel/PreviewFeaturesExtensions.cs

@@ -14,7 +14,7 @@ public static class PreviewFeaturesExtensions
         PreviewFeatures.PRE_PLUGINS_2025 => TB("Plugins: Preview of our plugin system where you can extend the functionality of the app"),
         PreviewFeatures.PRE_READ_PDF_2025 => TB("Read PDF: Preview of our PDF reading system where you can read and extract text from PDF files"),
         PreviewFeatures.PRE_DOCUMENT_ANALYSIS_2025 => TB("Document Analysis: Preview of our document analysis system where you can analyze and extract information from documents"),
-        PreviewFeatures.PRE_SPEECH_TO_TEXT_2026 => TB("Speech to Text: Preview of our speech to text system where you can transcribe recordings and audio files into text"),
+        PreviewFeatures.PRE_SPEECH_TO_TEXT_2026 => TB("Transcription: Preview of our speech to text system where you can transcribe recordings and audio files into text"),
         
         _ => TB("Unknown preview feature")
     };

app/MindWork AI Studio/Settings/SettingsManager.cs

@@ -263,7 +263,7 @@ public sealed class SettingsManager
         if (preselection != Profile.NO_PROFILE)
             return preselection;
         
-        preselection = this.ConfigurationData.Profiles.FirstOrDefault(x => x.Id.Equals(this.ConfigurationData.App.PreselectedProfile, StringComparison.InvariantCultureIgnoreCase));
+        preselection = this.ConfigurationData.Profiles.FirstOrDefault(x => x.Id.Equals(this.ConfigurationData.App.PreselectedProfile, StringComparison.OrdinalIgnoreCase));
         return preselection ?? Profile.NO_PROFILE;
     }
     
@@ -273,7 +273,7 @@ public sealed class SettingsManager
         if (preselection != ChatTemplate.NO_CHAT_TEMPLATE)
             return preselection;
         
-        preselection = this.ConfigurationData.ChatTemplates.FirstOrDefault(x => x.Id.Equals(this.ConfigurationData.App.PreselectedChatTemplate, StringComparison.InvariantCultureIgnoreCase));
+        preselection = this.ConfigurationData.ChatTemplates.FirstOrDefault(x => x.Id.Equals(this.ConfigurationData.App.PreselectedChatTemplate, StringComparison.OrdinalIgnoreCase));
         return preselection ?? ChatTemplate.NO_CHAT_TEMPLATE;
     }
 

app/MindWork AI Studio/Settings/TranscriptionProvider.cs

@@ -0,0 +1,32 @@
+using System.Text.Json.Serialization;
+
+using AIStudio.Provider;
+
+using Host = AIStudio.Provider.SelfHosted.Host;
+
+namespace AIStudio.Settings;
+
+public readonly record struct TranscriptionProvider(
+    uint Num,
+    string Id,
+    string Name,
+    LLMProviders UsedLLMProvider,
+    Model Model,
+    bool IsSelfHosted = false,
+    string Hostname = "http://localhost:1234",
+    Host Host = Host.NONE) : ISecretId
+{
+    public override string ToString() => this.Name;
+    
+    #region Implementation of ISecretId
+    
+    /// <inheritdoc />
+    [JsonIgnore]
+    public string SecretId => this.Id;
+    
+    /// <inheritdoc />
+    [JsonIgnore]
+    public string SecretName => this.Name;
+    
+    #endregion
+}