fixup! refactor(offers): bundle paid invoice data for payer proofs

Co-Authored-By: OpenAI Codex <noreply@openai.com>

Author: vincenzopalazzo

lightning/src/offers/payer_proof.rs

@@ -272,8 +272,8 @@ impl<'a> PayerProofBuilder<'a, ExplicitSigningKey> {
 	///
 	/// Returns an error if the preimage doesn't match the invoice's payment hash.
 	fn new(invoice: &'a Bolt12Invoice, preimage: PaymentPreimage) -> Result<Self, PayerProofError> {
-		let computed_hash = sha256::Hash::hash(&preimage.0);
-		if computed_hash.as_byte_array() != &invoice.payment_hash().0 {
+		let computed_hash: PaymentHash = preimage.into();
+		if computed_hash != invoice.payment_hash() {
 			return Err(PayerProofError::PreimageMismatch);
 		}