feat: allow empty inference params

Author: wisedev

src/MaIN.Core/.nuspec

@@ -2,7 +2,7 @@
 <package>
   <metadata>
     <id>MaIN.NET</id>
-    <version>0.10.2</version>
+    <version>0.10.3</version>
     <authors>Wisedev</authors>
     <owners>Wisedev</owners>
     <icon>favicon.png</icon>

src/MaIN.Services/Services/AgentService.cs

@@ -103,7 +103,7 @@ public async Task<Agent> CreateAgent(Agent agent, bool flow = false, bool intera
             Name = agent.Name,
             ImageGen = agent.Model == ImageGenService.LocalImageModels.FLUX,
             ToolsConfiguration = agent.ToolsConfiguration,
-            BackendParams = inferenceParams ?? new LocalInferenceParams(),
+            BackendParams = inferenceParams,
             MemoryParams = memoryParams ?? new MemoryParams(),
             Messages = [],
             Interactive = interactiveResponse,

src/MaIN.Services/Services/LLMService/AnthropicService.cs

@@ -59,7 +59,7 @@ private void ValidateApiKey()
 
     public async Task<ChatResult?> Send(Chat chat, ChatRequestOptions options, CancellationToken cancellationToken = default)
     {
-        if (chat.BackendParams is not AnthropicInferenceParams)
+        if (chat.BackendParams != null && chat.BackendParams is not AnthropicInferenceParams)
         {
             throw new InvalidBackendParamsException(LLMApiRegistry.Anthropic.ApiName, nameof(AnthropicInferenceParams), chat.BackendParams.GetType().Name);
         }

src/MaIN.Services/Services/LLMService/LLMService.cs

@@ -56,6 +56,8 @@ public LLMService(
         ChatRequestOptions requestOptions,
         CancellationToken cancellationToken = default)
     {
+        chat.BackendParams ??= new LocalInferenceParams();
+        
         if (chat.BackendParams is not LocalInferenceParams)
         {
             throw new InvalidBackendParamsException("Local LLM", nameof(LocalInferenceParams), chat.BackendParams.GetType().Name);

src/MaIN.Services/Services/LLMService/OpenAiCompatibleService.cs

@@ -51,9 +51,9 @@ public abstract class OpenAiCompatibleService(
         ChatRequestOptions options,
         CancellationToken cancellationToken = default)
     {
-        if (chat.BackendParams.GetType() != ExpectedParamsType)
+        if (chat.BackendParams != null && chat.BackendParams?.GetType() != ExpectedParamsType)
         {
-            throw new InvalidBackendParamsException(GetApiName(), ExpectedParamsType.Name, chat.BackendParams.GetType().Name);
+            throw new InvalidBackendParamsException(GetApiName(), ExpectedParamsType.Name, chat.BackendParams!.GetType().Name);
         }
 
         ValidateApiKey();