* Add ASUS ExpertBook B9406 display and touchpad fixes for Panther Lake
* Drop B9406 migration
Per DHH's review: the migration's audience is essentially nobody.
Anyone running Omarchy on B9406 today is doing so via nomodeset
manually at every boot, not via a working unmodified install. Fresh
installs after this PR ships will pick up the fixes through the
hardware-match install hook; no migration needed.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
