* chore: improve perf in SIP-68 migration
* Small fixes
* Create tables referenced in SQL
* Update logic in SqlaTable as well
* Fix unit tests
(cherry picked from commit 63b5e2e4fa)
* feat(saved queries): security perm simplification
* migration script and frontend
* add downgrade procedure
* downgrade procedure, inferred from the upgrade data
* fix JS test
* improve code
* add tests for role migration
* more tests and a short description for each one
* Improve readability
* simplify dataclass creation
* fix dataclass