v1.4.0 — SteelSeries Nova 5/5X provider + Logitech PRO X Wireless support

What's new

New SteelSeriesNova5 detection mode: reads the headset physical state directly over HID (P/Invoke to hid.dll/setupapi.dll). No SteelSeries GG or third-party software.
The installer offers a "SteelSeries Arctis Nova 5/5X" option when picking the headset type; it verifies the HID receiver is present before enabling the mode.
Diagnostic tool to watch the receiver live: tools/Test-SteelSeriesNova5Hid.ps1 (turn the headset ON/OFF and see Connected/Disconnected).

G HUB detection now matches PRO X, PRO X 2 and PRO X Wireless (previously only PRO X 2), so PRO X Wireless users can use the LIGHTSPEED battery signal as the ON/OFF source.
Logitech mouse names (e.g. G PRO X Superlight) are excluded from the headset candidates.

Native Windows Core Audio backend replaces svcl.exe — no third-party audio-control download.
Output switches verified across Console, Multimedia and Communications.
Installer/Reconfigure pickers list only Active endpoints; installer shortcut to skip the ON→OFF→ON cycle.

CI validates syntax, lint, Pester and quality; real headset behavior should be verified with the diagnostic tools (SteelSeries HID tool, or the normal Jabra / PRO X manual test).