feat: Add paginated memory queries (#825)

Co-authored-by: cpacker <packercharles@gmail.com>

memgpt/agent_store/db.py

@@ -260,8 +260,7 @@ class SQLStorageConnector(StorageConnector):
         all_filters = [getattr(self.db_model, key) == value for key, value in filter_conditions.items()]
         return all_filters
 
-    def get_all_paginated(self, filters: Optional[Dict] = {}, page_size: Optional[int] = 1000) -> Iterator[List[Record]]:
-        offset = 0
+    def get_all_paginated(self, filters: Optional[Dict] = {}, page_size: Optional[int] = 1000, offset=0) -> Iterator[List[Record]]:
         filters = self.get_filters(filters)
         while True:
             # Retrieve a chunk of records with the given page_size