The discrete-render-GPU LUID picker was display-utility living in the SudoVDA backend; moved it verbatim to a backend-neutral crate::win_adapter module (the plan's windows/adapter.rs). The IDD-push capturer + pf-vdisplay backend now depend on it as a PEER instead of reaching into vdisplay::sudovda — the first step in breaking the circular reach-in so SudoVDA can eventually be dropped (Goal 2). sudovda re-exports it for its own callers.
Remaining F1 increments: the CCD/HDR helpers (resolve_gdi_name, set_advanced_color, advanced_color_enabled, set_active_mode, isolate/restore_displays_ccd) → a neutral win_display module.
Verified: host clippy (nvenc) clean on the RTX box.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
enricobuehler
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