## Summary Add a contract method to look up payments where a given address is a recipient. ## Acceptance Criteria - [ ] New public function `list_by_recipient(recipient: Address) -> Vec<u64>` - [ ] Storage maps recipient addresses to payment ids on create - [ ] Tests for single and multi-payment lookups ## Tech Stack Rust, Soroban SDK 23
Summary
Add a contract method to look up payments where a given address is a recipient.
Acceptance Criteria
list_by_recipient(recipient: Address) -> Vec<u64>Tech Stack
Rust, Soroban SDK 23