refactor(windows-host): move CCD/HDR display helpers to a neutral module — F1 complete (audit §9)

Moved the remaining 6 SudoVDA reach-in helpers + SavedConfig (resolve_gdi_name, set_advanced_color, advanced_color_enabled, set_active_mode, isolate/restore_displays_ccd) verbatim from vdisplay::sudovda into a backend-neutral crate::win_display module (the plan's windows/display_ccd.rs). The capturers (idd_push/dxgi/wgc), pf_vdisplay, and punktfunk1 now depend on these as PEERS via crate::win_display instead of reaching into the SudoVDA backend.

With win_adapter (F1 pt1), all 7 reach-in helpers are now neutral — the circular reach-in is broken, so SudoVDA can eventually be deleted (Goal 2) without losing the display utilities. sudovda re-exports the ones it still uses internally; its now-unused CCD/GDI imports were removed.

Verified: host clippy (nvenc) clean on the RTX box; Linux check clean (the new modules are #[cfg(windows)]).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

crates/punktfunk-host/src/capture/wgc.rs

@@ -196,7 +196,7 @@ impl WgcCapturer {
             // The SudoVDA output appears a beat after the display is created — settle-retry like DDA.
             let deadline = Instant::now() + Duration::from_millis(2000);
             let (adapter, output) = loop {
-                if let Some(n) = crate::vdisplay::sudovda::resolve_gdi_name(target.target_id) {
+                if let Some(n) = crate::win_display::resolve_gdi_name(target.target_id) {
                     if let Ok(found) = find_output(&n) {
                         break found;
                     }