before refactor index store to complex file-line pattern

tests/data/test-linedb-index-enc/users.jsonl

@@ -0,0 +1 @@
+{"email":"alice@secret.com","id":1,"name":"alice"}                                                                                                                                                                                                                                                                                                                                                                                                                                                                             

tests/data/test-point-update/users.jsonl

@@ -0,0 +1,2 @@
+{"email":"alice@test.com","id":1,"name":"alice"}                                                                                                                                                                                                               
+{"email":"bob_new@test.com","id":2,"name":"bob"}