♠Q
♥A 10 7 4 3
♦K J 8 7 6
♣K 2
As dealer (all green), you open 1♥. West intervenes with a 3♠ preempt.
Now, partner bids 4♠ -- described as "Cue bid -- 13+ total points; forcing to 5C"
East doubles partner's 4♠. On to you!
What is your next action? What do you expect partner to hold?
I ask because:
Spoiler