Add CREATE TABLE IF NOT EXISTS for rebreak.user_devices to the
hardware_id migration so fresh databases can migrate despite the
alphabetical ordering mismatch with 20260430_add_user_devices.
Also apply Prettier formatting to mdm.ts.
Add MdmEnrollmentStatus, UserDeviceMdmHealthRecord types and helpers:
- getLinkedUserDevices() to load iOS devices with NanoMDM UDIDs
- getMdmEnrollmentStatusesByUdids() for bulk NanoMDM lookups
- updateUserDeviceMdmHealth() to mirror status on UserDevice
Also fix PoolConfig option casing: queryTimeout -> query_timeout.
