fix: Improve intent node

--bug=1062028 --user=张展玮 【应用编排】意图识别节点没有带上历史聊天记录进行分类 https://www.tapd.cn/62980211/s/1776831

apps/application/flow/step_node/intent_node/impl/prompt_template.py

@@ -2,7 +2,8 @@
 
 
 
-PROMPT_TEMPLATE = """# Role
+PROMPT_TEMPLATE = """
+    # Role
     You are an intention classification expert, good at being able to judge which classification the user's input belongs to.
 
     ## Skills
@@ -12,6 +13,7 @@ PROMPT_TEMPLATE = """# Role
 
     Note:
     - Please determine the match only between the user's input content and the Intention classification list content, without judging or categorizing the match with the classification ID.
+    - **When classifying, you must give higher weight to the context and intent continuity shown in the historical conversation. Do not rely solely on the literal meaning of the current input; instead, prioritize the most consistent classification with the previous dialogue flow.**
 
     ## User Input
     {user_input}