Congratulations on your purchase brother. Allah naseeb karain.
For your queries
1) the Z trim has auto headlight adjustment. It automatically adjusts front beam height according to the type of surface you're driving on. No manual adjustment is available for it. Manual adjustment only in Base trim.
Though you cab adjust the interior lighting through the setting screen in the gauge cluster.
2) for collision assist, activate it through the setting. Find some open area, place any soft material of about 4 to 5 feet height and drive into it at around 10kmph. (I used a card box, and AC packing). Worked flawlessly.
3) No, the car does not feature an adaptive cruise control.
Enjoy your purchase, and please post some pictures and a short owner's review of your car.