Looking for a smart doorbell or doorbell adapter that doesn't require an a/c plug

I want a doorbell that I can turn off at night via Home Assistant.

It can either be an actual smart doorbell (preferred) or just an adapter for my already installed one, but I’d prefer if it worked with the 2 wires sticking out the wall that my current doorbell works with, rather than a ringer that needs to be plugged into an a/c socket, because I have none of those in my hallway (which is the center of my apartment). I’d have to install it in the kitchen then, which is a bit impractical, because it would be harder to hear it when when closing the kitchen door.
Also, I’d prefer if it didn’t require an additional gateway and that I could just connect it to my HA via my Home Assistant Yellow’s zigbee radio and z2m or Thread or something.
I don’t need it to have a video or call functionality. I’d rather have it be cheap.

So far, I haven’t found anything that meets my requirements.

I use a 433 MHz wireless, battery powered doorbell with plug-in receiver chime for that. Like this one: https://azerty.nl/product/acdb-9000ac-gong-batterij-drukker/4784146
It’s integrated in HA through a 433 MHz receiver.

The button is not paired directly to the chime. Instead, both are in HA and an automation controls whether a button press triggers the chime or just sends a notification (or turns on a light etc).

Oh, okay. That’s not bad, but if I understand you correctly, I’d need to somehow get rid of the button I already have and then put this new one in its place, which I’d rather avoid, because then it wouldn’t match with the doorbell buttons of the other apartments next to it.

I’d rather have a doorbell or doorbell adapter that connects to my preexisting doorbell wire.

Find the doorbell transformer (often in a closet). Switch one of its two output wires through a relay module that HA controls.

The other option is to use a reed based sensor like shown in this thread:

You can try use say an aqara leak sensor that has the contact points on the bottom via the screws to connect the reed switch wires to if you don’t want to solder but still want easy access should you need to replace it later. I use one connected to a pressure mat as my bed occupancy sensor with a few spare should I need them.