Greetings!
You have two options--or really infinitely many since it's Hubitat, but two that I'd recommend. If you want to use Rule Machine, someone demonstrated how to set it up here with a Hue Dimmer:
It would be a bit different for the Zooz (unless you wanted to emulate the Hue Dimmer's "multi taps," you can ignore the button-push counting, and the button numbers would be different; the Hue has 4 discrete buttons but you only have 2 on the Zooz and won't be able to use the +/-10 dimming and start/stop raising/lowering due to number of buttons, so you'll have to pick your favorite--I'd use the latter myself).
Alternatively, I wrote Dimmer Button Controller to simplify setups like the above a bit: [RELEASE] Dimmer Button Controller (configure Pico to emulate Hue Dimmer or any button device to easily control lights). (You select the lights once in total instead of once for every button/action, which I think gets annoying fast.)
In any case, the Zooz gives you three usable events for each button: the up paddle gives "button 1 pushed" for a normal tap (map that to turn on your smart bulbs), "button 1 held" after it's pressed for a second or so (use that to do a startLevelChange(up), a "Start raising dimmers" in RM, or "Brighten" with "Dim/brighten while held" enabled in Dimmer Button Controller), and a "button 1 released" event when let go if held (map that to stopLevelChange(), "Stop raising/lowering dimmers," or Dimmer Button Controller will take care of that for you with the previous option checked). Button 2 is similar but for the down paddle, so I'd map that to dimming/lowering events instead.
