update parseDoc api

core-ai/src/main/java/com/qmth/boot/core/ai/model/AiConstants.java

@@ -2,6 +2,8 @@ package com.qmth.boot.core.ai.model;
 
 public interface AiConstants {
 
+    String PARAM_SPLIT = "@@";
+
     String BASE_URL = "base_url";
 
     String LLM_APP_TYPE = "llm_app_type";