After a successful split zap, validation errored: "Unable to initialize a relay
pool for receipt validation." The validator built a fresh `new SimplePool()` and
required `pool.list()`, but nostr-tools 2.x removed SimplePool.list() (the rest of
the app only has it because js/nostr/toolkit.js shims it). So validation always
failed even though the payment went through.
Fix: resolveReceiptListPool() applies the app's legacy .list shim
(shimLegacySimplePoolMethods) to the freshly created pool, and the gate now
accepts a listEvents override instead of hard-requiring pool.list.
tests/zap-receipt-pool.test.mjs: 2.x pool gets .list shimmed; createPool override
shimmed; listEvents override leaves the pool as-is; null when neither available.
Mutation-verified (removing the shim fails it).
Co-Authored-By: Claude Opus 4.8 <[email protected]>
