my questions are at below:
1- after 1♥,what;s the meanings of 1♠?
Robot play cheapest 1♠,I think it shows 4♠+4♦ plus with unbelanced hand.if with belanced hand,Robot should rebid instead of 1♠,right?
I have to say the balance is key,also is bidding rule.
2- As to this hand,reponder should play wjs,to bid 2♥ should be a reasonable auction,why respond 1♥?

Help
