更新pyproject.toml和uv.lock文件，新增ijson和langfuse依赖，同时在对话到工单的分析流程中添加时间范围过滤功能，优化日志记录，支持按时间范围过滤会话数据。新增获取工作流运行信息的方法，并更新意图识别API以支持使用jieba分词。

rag2_0/dify/dify_tool.py

@@ -244,6 +244,29 @@ class PgSql:
                 raise Exception(f"Error while getting conversation_messages: {error}")
             return rating
 
+    def get_workflow_run_info(self, workflow_run_id):
+        """
+        通过msg_id从message_feedbacks中找到对应的rating。
+        :param msg_id: 消息ID (UUID格式)
+        :return: rating 字符串
+        """
+        with self.pg_sql_lock:
+            rating = None
+            try:
+                with self.connection.cursor() as cursor:
+                    # 构建查询语句
+                    cursor.execute("""
+                        SELECT * FROM workflow_runs WHERE id=%s;
+                    """,
+                    (workflow_run_id,))
+                    # 执行查询
+                    result = cursor.fetchone()
+                    if result:
+                        colnames = [desc[0] for desc in cursor.description]
+                        return dict(zip(colnames, result))
+            except (Exception, psycopg2.Error) as error:
+                raise Exception(f"Error while getting conversation_messages: {error}")
+            return None
 
 class DifyTool:
     """
@@ -337,6 +360,9 @@ class DifyTool:
     def get_message_rating(self, msg_id):
         return self.dify_pgsql.get_message_rating(msg_id)
 
+    def get_workflow_run_info(self, workflow_run_id):
+        return self.dify_pgsql.get_workflow_run_info(workflow_run_id)
+
 class BaseWorkflowChat:
     """
     工作流对话基类，封装了与Dify API交互的基本功能