Moves the repeatedly defined HEX64_REGEX constant to a shared utility
module to improve maintainability and consistency. Updates all consumers
to import from the new location.
Signed-off-by: Jules <[email protected]>
Co-authored-by: PR0M3TH3AN <[email protected]>
This patch updates `js/payments/zapSplit.js` and `js/payments/nwcClient.js` to replace legacy manual event signing (which relied on `nostr-tools` v1 methods `getEventHash` and `signEvent` that are missing in v2) with the centralized `signEventWithPrivateKey` helper from `js/nostr/publishHelpers.js`. This ensures compatibility with the installed `nostr-tools` version and resolves the error preventing zaps.
