<!-- Add the related story/sub-task/bug number, like Resolves#123, or
remove if NA -->
**Related issue:** Resolves#43945
# Checklist for submitter
If some of the following don't apply, delete the relevant line.
- [x] Changes file added for user-visible changes in `changes/`,
`orbit/changes/` or `ee/fleetd-chrome/changes`.
See [Changes
files](https://github.com/fleetdm/fleet/blob/main/docs/Contributing/guides/committing-changes.md#changes-files)
for more information.
- [x] Input data is properly validated, `SELECT *` is avoided, SQL
injection is prevented (using placeholders for values in statements), JS
inline code is prevented especially for url redirects, and untrusted
data interpolated into shell scripts/commands is validated against shell
metacharacters.
- [x] Timeouts are implemented and retries are limited to avoid infinite
loops
- [x] If paths of existing endpoints are modified without backwards
compatibility, checked the frontend/CLI for any necessary changes
## Testing
- [x] Added/updated automated tests
- [x] Where appropriate, [automated tests simulate multiple hosts and
test for host
isolation](https://github.com/fleetdm/fleet/blob/main/docs/Contributing/reference/patterns-backend.md#unit-testing)
(updates to one hosts's records do not affect another)
- [x] QA'd all new/changed functionality manually
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **New Features**
* Configurable option to preserve past host activity history during
Apple Business Manager re-enrollment.
* Re-enrollment can perform a targeted reset of host MDM state and
upcoming activities when preservation is disabled.
* Token-update flow now conditionally triggers the reenrollment reset
based on device/migration state and the preserve flag.
* **Bug Fixes**
* Host vitals and host-scoped data are cleared on ABM re-enrollment when
preservation is disabled.
* Reset is skipped during specific migration scenarios to avoid
disruption.
* **Tests**
* Added tests and mocks validating reset behavior, the preservation
flag, and migration-based skip logic.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
Magnus Jensen
7e8994d6db