Assist Notification sound when ready for input.

[mwesten]

Is your feature request related to a problem? Please describe.

I'm using Hearing aids with tap-control to enable the assist function (Double-Tap my ear/HearingAid). I then give my voice command and then nothing happens.... Sometimes the Double-tap isn't registered, so assist isn't started, while I already start to give commands.

Describe the solution you'd like

It would be nice to have a (confgurable) audible notification that lets me know that Assist is ready for a command.

Describe alternatives you've considered, if any

Additional context

Using a Bluetooth Hearing Aid: Phonak Audeo I70 Sphere, that uses the classic bluetoth protocol and acts just like a headphone.

Phone: Motorola Edge 50 Neo with Android 15

HomeAssistant Companion: v2025.2.3-full