translation improvement.

Author: Haiping Chen

src/Infrastructure/BotSharp.Core/Translation/TranslationService.cs

@@ -302,10 +302,7 @@ private T Assign<T>(T data, Dictionary<string, string> map) where T : class
     /// <returns></returns>
     private async Task<TranslationOutput> InnerTranslate(List<TranslationInput> texts, string language, string template)
     {
-        var jsonString = JsonSerializer.Serialize(texts, new JsonSerializerOptions
-        {
-            WriteIndented = true,
-        }) ;
+        var jsonString = JsonSerializer.Serialize(texts);
         var translator = new Agent
         {
             Id = Guid.Empty.ToString(),

src/Infrastructure/BotSharp.Core/data/agents/01fcc3e5-9af7-49e6-ad7a-a760bd12dc4a/templates/translation_prompt.liquid

@@ -1,5 +1,5 @@
 {{ text_list }}
 
 =====
-Translate the above sentences into {{ language }}.
-Output the translated text in JSON {"input_lang":"original text language",  "output_lang":"{{ language }}", "texts":[""]}.
+Translate all the above sentences into {{ language }}.
+Output the translated text in JSON {"input_lang":"original text language", "output_count": {{ text_list_size }}, "output_lang":"{{ language }}", "texts":[{"id": 1, "text":""}]}.

src/Infrastructure/BotSharp.OpenAPI/Controllers/ConversationController.cs

@@ -1,6 +1,4 @@
 using BotSharp.Abstraction.Routing;
-using Newtonsoft.Json.Serialization;
-using Newtonsoft.Json;
 
 namespace BotSharp.OpenAPI.Controllers;
 
@@ -303,12 +301,7 @@ await conv.SendMessage(agentId, inputMsg,
 
     private async Task OnChunkReceived(HttpResponse response, RoleDialogModel message)
     {
-        var json = JsonConvert.SerializeObject(message, new JsonSerializerSettings
-        {
-            Formatting = Formatting.None,
-            ContractResolver = new CamelCasePropertyNamesContractResolver(),
-            NullValueHandling = NullValueHandling.Ignore,
-        });
+        var json = JsonSerializer.Serialize(message);
 
         var buffer = Encoding.UTF8.GetBytes($"data:{json}\n");
         await response.Body.WriteAsync(buffer, 0, buffer.Length);