Rename OEM vocabulary to provisioning (ISO)
Matches the runtime rename. The deferred-provisioning install mode replaces
'OEM' everywhere:
omarchy_install.oem → omarchy_install.defer_provisioning
--oem / --oem-file → --defer-provisioning / --defer-provisioning-file
OMARCHY_INSTALL_OEM_FILE → OMARCHY_INSTALL_DEFER_PROVISIONING_FILE
cidata 'oem' marker → 'defer-provisioning'
/var/lib/omarchy/oem/ → /var/lib/omarchy/provisioning/
/etc/omarchy/oem.key → /etc/omarchy/provisioning.key
install/oem/omarchy-oem-setup.service → install/provisioning/omarchy-provision-owner.service
stage_oem_state phase → stage_provisioning_state ('Staging provisioning')
Orchestrator internals (OEM_STATE_DIR, _validate_oem_state, ctx.oem, …),
the configurator, cidata-load, the dashboard phase band, the harness
(--oem → --provision), and the tests all move together.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
