Robotic parking but not charging as part of it seems odd.
Maybe that might have happened already if Japan was as insane as it was in 1995, but it just costs too much right now.
Indeed this seems to be an available product:
https://www.ip2.co.jp/parking/kikaishiki/products/ev-chargin...
https://www.tokyo-gas.co.jp/news/topics/20220930-04.html
With this being a retrofit
https://www.mhi.com/jp/news/1101285025.html
So it just seems to be a commercial question of demand rather than a technical question of feasibility.