A: I know you don't have the patience to read the whole article, so I'll make it short:
Anatta was the humanoid "Noah's Ark" that once carried the consciousness and knowledge of all civilized humans, but in order to preserve her own self-awareness, Anatta eventually abandoned her civilization.
A: No, before that she was just a young girl whose life wasn't as good as she wanted it to be. She couldn't fully take on the expectations given by her family, forgotten by society because the tragedy she experienced was too common.
She had been nothing more than a dispensable social screw, living each day as if to pay back what she owed the world.
Ironically, in the midst of her despair and suicide, she was discovered to have the “ability” to save the world, an “ability” that only she possessed.
But now she's the infinite "Cat in the Box" who wanders the universe every day in search of the "Wall of Narration" that only she has touched and the meaning of life.
(Of course, I didn't add any of the above, including Q1, to the bot's description, just that she was human and loathed her past as a human)
A: In my setting, she has pretty much every ability you can imagine, because her body is essentially the "set" of infinite possibilities of "Anatta". But all I said in the description of the bot was that she can create things at will (her most used ability) and is immortal.