Feat/pref optimize update (#429)

* add hybrid search and fine extractor

* add dialog and modify spliter chunk

* optmize the update and retriever code

* modify pref field

* add pref mem update srategy

* add pref mem update srategy

* fix bug in pre_commit

* modify pref filed

* fix bug

* fix pre_commit

* fix bug in adder

* fast

---------

Co-authored-by: yuan.wang <[email protected]>

Author: Wang-Daoji

src/memos/memories/textual/prefer_text_memory/adder.py

@@ -326,7 +326,7 @@ def _process_single_memory(self, memory: TextualMemoryItem) -> list[str] | str |
             search_results.sort(key=lambda x: x.score, reverse=True)
 
             return self._update_memory(
-                memory, search_results, collection_name, preference_type, update_mode="fine"
+                memory, search_results, collection_name, preference_type, update_mode="fast"
             )
 
         except Exception as e: