* Prioritize shrinking of previously cleaned roots
* measure time of stale slot shrinking
* Disable shrink for test
* shrink: budgeting, store count, force for snapshot
* Polish implementation and fix tests
* Fix ci..
* Clean up a bit
* Further polish implementation and fix/add tests
* Rebase fixes
* Remove unneeded Default for AccountStorageEntry
* Address review comments
* More cleanup
* More cleanup
* Introduce background AppendVec shrink mechanism
* Support ledger tool
* Clean up
* save
* save
* Fix CI
* More clean up
* Add tests
* Clean up yet more
* Use account.hash...
* Fix typo....
* Add comment
* Rename accounts_cleanup_service