Fix FlexTalk AHK launch order and log wine binaries

[h4rm0n1c]

Motivation

• The FlexTalk installer automation could block or fail to start because the AutoHotkey script was launched in a way that ran synchronously, and the script lacked visibility into which wine / wineserver binaries were being used.

Description

• Log the selected wine and wineserver binaries at prefix setup start by printing "Using wine binary: %s" and "Using wineserver binary: %s".
• Launch the AutoHotkey automation with cmd /c start "" <AutoHotkey.exe> <script> so the AHK process is started via the shell start association and runs asynchronously instead of blocking the installer call.
• Add a short sleep 2 delay after starting the AHK helper to give it a moment to initialize before launching the FlexTalk setup.exe.
• Change made in scripts/winetricks/setup_nettts_prefix.sh.

Testing

• No automated tests were run for this script-only change.

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Codex Task