Remember chat provider (#217)

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

@@ -0,0 +1,7 @@
+namespace AIStudio.Settings.DataModel;
+
+public enum AddChatProviderBehavior
+{
+    ADDED_CHATS_USE_DEFAULT_PROVIDER = 0,
+    ADDED_CHATS_USE_LATEST_PROVIDER,
+}

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

@@ -7,6 +7,16 @@ public sealed class DataChat
     /// </summary>
     public SendBehavior ShortcutSendBehavior { get; set; } = SendBehavior.ENTER_IS_SENDING;
 
+    /// <summary>
+    /// Defines the provider behavior for loading a chat.
+    /// </summary>
+    public LoadingChatProviderBehavior LoadingProviderBehavior { get; set; } = LoadingChatProviderBehavior.USE_CHAT_PROVIDER_IF_AVAILABLE;
+
+    /// <summary>
+    /// Defines the provider behavior when adding a chat.
+    /// </summary>
+    public AddChatProviderBehavior AddChatProviderBehavior { get; set; } = AddChatProviderBehavior.ADDED_CHATS_USE_LATEST_PROVIDER;
+
     /// <summary>
     /// Preselect any chat options?
     /// </summary>

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

@@ -0,0 +1,8 @@
+namespace AIStudio.Settings.DataModel;
+
+public enum LoadingChatProviderBehavior
+{
+    USE_CHAT_PROVIDER_IF_AVAILABLE = 0,
+    ALWAYS_USE_DEFAULT_CHAT_PROVIDER,
+    ALWAYS_USE_LATEST_CHAT_PROVIDER,
+}