fix(server): proper asset sync (#10019)

* fix(server,mobile): proper asset sync

* fix CI issues

* only use id instead of createdAt+id

* remove createdAt index

* fix typo

* cleanup createdAt usage

---------

Co-authored-by: Alex Tran <alex.tran1502@gmail.com>

open-api/immich-openapi-specs.json

@@ -7432,10 +7432,6 @@
       },
       "AssetFullSyncDto": {
         "properties": {
-          "lastCreationDate": {
-            "format": "date-time",
-            "type": "string"
-          },
           "lastId": {
             "format": "uuid",
             "type": "string"