How to get to the cuddling scene with the bot? I will now quote Ragnarok from their discord game guides thread:

So, seems some people are having issues with this scene, so here a short guide. this scene requires mainly a very high affinity level. affinity is normally a hidden stat, that you cannot see (there are mods if you must), and you normally have to feel your way around, like a real GF for those fortunate enough to have/had one. IRL girls do not come with affinity meter, so why should a fictional character in a game in a fictional version of our world have that stat visible in any way, shape or form? anyway, here the requirements

1. bot must have advanced ai. this means that she must have rebooted. remember when you pick her up, she is like a doll. talk to her daily, even if unresponsive till she reboots
2. must have all limbs. how could you get cuddles if bot cannot use her hands? check the starting tips guide on how to open parts store if you have not done so yet
3. day must be over 20. Rome was not build in a day, and therefore, high affinity is not grinded in a week.
4. bot must like you alot. she must have heart eyes and have told you she loves you. be mindful. this can happen earlier, so while this does not mean a guarantee, it tells you, you are on the right track
5. bot must not be angry or sad at you. this happens because of neglect. do not ignore her.

eventually you will trigger the event. afterwards, you will see the option in the sleep menu.