**Related issue:** Resolves#44190
- [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
## Testing
- [x] Added/updated automated tests
- [ ] QA'd all new/changed functionality manually
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **New Features**
* Added a periodic cleanup job that removes aged, acknowledged Windows
MDM command-queue entries to reduce write pressure during ACK
processing.
* **Bug Fixes**
* Pending-command detection now excludes already-ACKed commands from
dispatch; queue rows are retained after ACK and cleaned later.
* **Tests**
* Added and updated tests to validate cleanup behavior and revised
ACK/queue semantics.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
---------
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
