* [monorepo] record ERROR/FATAL log messages in junit report
* [web] put SaaS specific code behind feature flag
* [web] use split test cache for getting user assignments
The unit tests needed updating as they did not replicate any of the
mongo filtering. The acceptance tests cover this logic.
* [web] make better use of existing indexes
* [web] avoid col-scan in tests of notifications module
* [web] remove cleanup of empty feedbacks collection
* [web] add assertion for reason of rejected request in launchpad test
* [web] add missing indexes
* [web] enable mongo notablescan
* [web] make emailNotifications tests compatible with notablescan
GitOrigin-RevId: b888f2feeb3a0e915f068ae1c4ea23ec17821221
