Feature/episodic memory (#64)

* [feature]episodic memory

* [feature]episodic memory

* [changes]AI review and modify code

api/app/repositories/neo4j/add_nodes.py

@@ -211,6 +211,7 @@ async def add_memory_summary_nodes(summaries: List[MemorySummaryNode], connector
                 "dialog_id": s.dialog_id,
                 "chunk_ids": s.chunk_ids,
                 "content": s.content,
+                "memory_type": s.memory_type,  # 添加 memory_type 字段
                 "summary_embedding": s.summary_embedding if s.summary_embedding else None,
                 "config_id": s.config_id,  # 添加 config_id
             })

api/app/repositories/neo4j/cypher_queries.py

@@ -721,6 +721,7 @@ SET m += {
     dialog_id: summary.dialog_id,
     chunk_ids: summary.chunk_ids,
     content: summary.content,
+    memory_type: summary.memory_type,
     summary_embedding: summary.summary_embedding,
     config_id: summary.config_id,
     importance_score: CASE WHEN summary.importance_score IS NOT NULL THEN summary.importance_score ELSE coalesce(m.importance_score, 0.5) END,