v0.5.0 — QR code pairing for wireless debugging

Added

• QR code pairing for wireless debugging — scan a QR code on your Android 11+ phone to pair instantly, no manual IP/port or pairing code needed
• Full ADB wireless pairing protocol: mDNS + TLS + SPAKE2 key exchange + AES-128-GCM encrypted peer info exchange
• "Pair with QR Code" option in the Wi-Fi connect menu with live status updates
• Automatic fallback to manual pairing code flow