* Add webhook to app config
* Add redis failing policies set and webhook
* Add basic webhook test
* Store hostname in redis
* Global policy deletion to remove policy ID from set and config
* Also process new passing policies
* Fix unit test
* Sort hosts
* Add more tests
* Add ListSets to the failing policies interface
* Fix server URL and garbage collect on the triggering side
* Do not use Redis SCAN
* Fix Redis operation order
* Add API changes to doc
* Add comments
* Add more tests
* Fix tests
* Add tests for config update upon deletion of policies
* Run make dump-test-schema
* Ignore policies that failed to run
* Add proper unit tests to trigger logic
* Fix comments
* WIP
* Add tests to service_osquerty_test.go
* Use SSCAN for listing hosts instead of SMEMBERS
* Add failing policies to docs/01-Using-Fleet/configuration-files/README.md
* Remove skip
* Fix PR comments
* wip
* Add tests and finish implementation
* Add proper default for periodicity, changes file, and documentation
* Fix tests and add defaults also to new installs
* EnableHostUsers should be true if undefined as well
* In some cases, periodicity can be zero because of the migrations
* Apply defaults when migrating appconfig
* Fix lint
* lint
* Address review comments
