refine embedding model config

src/Infrastructure/BotSharp.Abstraction/MLTasks/Settings/LlmModelSetting.cs

@@ -43,9 +43,9 @@ public class LlmModelSetting
     public bool ImageGeneration { get; set; }
 
     /// <summary>
-    /// Embedding dimension
+    /// Settings for embedding
     /// </summary>
-    public int Dimension { get; set; }
+    public EmbeddingSetting? Embedding { get; set; }
 
     /// <summary>
     /// Settings for reasoning model
@@ -73,6 +73,11 @@ public class LlmModelSetting
     }
 }
 
+public class EmbeddingSetting
+{
+    public int Dimension { get; set; }
+}
+
 public class ReasoningSetting
 {
     public float Temperature { get; set; } = 1.0f;

src/Infrastructure/BotSharp.Core/Infrastructures/CompletionProvider.cs

@@ -126,7 +126,7 @@ public class CompletionProvider
         var found = llmProviderService.GetSetting(provider, model);
 
         completer.SetModelName(model);
-        completer.SetDimension(found.Dimension);
+        completer.SetDimension(found.Embedding?.Dimension ?? 0);
         return completer;
     }
 

src/Plugins/BotSharp.Plugin.KnowledgeBase/Helpers/KnowledgeSettingHelper.cs

@@ -43,6 +43,6 @@ public static class KnowledgeSettingHelper
     {
         var settings = services.GetRequiredService<ILlmProviderService>();
         var found = settings.GetSetting(provider, model);
-        return found?.Dimension ?? 0;
+        return found?.Embedding?.Dimension ?? 0;
     }
 }

src/WebStarter/appsettings.json

@@ -183,7 +183,9 @@
           "Version": "3-small",
           "ApiKey": "",
           "Type": "embedding",
-          "Dimension": 1536
+          "Embedding": {
+            "Dimension": 1536
+          }
         }
       ]
     },