**Related issue:** Resolves#43518
Adds a cross-platform alias `FLEET_MDM_ENABLE_DISK_ENCRYPTION`
(`mdm.enable_disk_encryption`) for the existing
`FLEET_MDM_ENABLE_CUSTOM_FILEVAULT` server configuration. When either
option is set, Fleet allows both custom Apple MDM profiles for FileVault
and custom Windows configuration profiles for BitLocker. Behavior
matches FileVault: no special conflict handling between Fleet's built-in
disk encryption controls and a custom profile. The setting remains Fleet
Premium only.
Both the single-add API/UI path and the batch/GitOps path are covered.
The existing `FLEET_MDM_ENABLE_CUSTOM_FILEVAULT` name continues to work
for backward compatibility.
Demo: https://www.youtube.com/watch?v=5naGaZKLZ8o
Docs: https://github.com/fleetdm/fleet/pull/48738/changes
# Checklist for submitter
- [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.
## Testing
- [x] Added/updated automated tests
- [x] QA'd all new/changed functionality manually
## New Fleet configuration settings
- [x] Setting(s) is/are explicitly excluded from GitOps
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **New Features**
* Added a cross-platform disk encryption setting that can enable custom
management for both macOS FileVault and Windows BitLocker profiles.
* **Bug Fixes**
* Windows BitLocker profile uploads are now accepted when custom disk
encryption is enabled.
* Startup now disables custom disk encryption management when the
license does not support it, and logs a warning.
* **Tests**
* Added coverage for BitLocker profile handling with custom disk
encryption enabled and disabled.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
Victor Lyuboslavsky
d7692a43ef