更新词库，删除冗余同义词条目，优化意图识别逻辑，增强代码可读性和维护性，同时添加去重功能以处理同义词。更新相关文档以反映最新变化。

rag2_0/intent_recognition/IntentRecognition.py

@@ -266,14 +266,15 @@ class IntentRecognizer:
         term_list = TermList(terms=list(matched_terms))
         return term_list, query_keys
     
-    def _rewrite_query(self, query: str, keywords: TermList, chat_history: List[Dict[str, str]] = None, context: str = "") -> QueryRewrite:
+    def _rewrite_query(self, query: str, keywords: TermList, query_keys:List[str], chat_history: List[Dict[str, str]] = None, context: str = "") -> QueryRewrite:
         """
         对用户问题进行改写
         
         Args:
             query: 用户原始问题
             keywords: 匹配到的关键词列表
-            
+            query_keys: 用户查询中提取的关键词列表
+
         Returns:
             改写结果
         """
@@ -362,6 +363,7 @@ class IntentRecognizer:
         rewrite = self._rewrite_query(
             query=query, 
             keywords=keywords_terms,
+            query_keys=query_keys,
             chat_history=chat_history,
             context=conversation_context
         )