fix: normalize LID→PN in handleBadAck, media retry, and PDO recovery

Additional leak points found during final audit:
- handleBadAck: key.remoteJid from ack stanza could be LID
- messages.media-update: media retry key JIDs not normalized
- CTWA PDO recovery: webMessageInfo.key from phone response not normalized

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/Socket/messages-recv.ts

@@ -1645,6 +1645,8 @@ export const makeMessagesRecvSocket = (config: SocketConfig) => {
 				break
 			case 'mediaretry':
 				const event = decodeMediaRetryNode(node)
+				// Normalize LID→PN in media retry key before emitting
+				await normalizeKeyLidToPn(event.key, signalRepository.lidMapping, logger)
 				ev.emit('messages.media-update', [event])
 				break
 			case 'encrypt':
@@ -2734,7 +2736,8 @@ export const makeMessagesRecvSocket = (config: SocketConfig) => {
 	}
 
 	const handleBadAck = async ({ attrs }: BinaryNode) => {
-		const key: WAMessageKey = { remoteJid: attrs.from, fromMe: true, id: attrs.id }
+		const resolvedFrom = await resolveLidToPn(attrs.from, signalRepository.lidMapping, logger) || attrs.from
+		const key: WAMessageKey = { remoteJid: resolvedFrom, fromMe: true, id: attrs.id }
 
 		// WARNING: REFRAIN FROM ENABLING THIS FOR NOW. IT WILL CAUSE A LOOP
 		// // current hypothesis is that if pash is sent in the ack

src/Utils/process-message.ts

@@ -589,6 +589,12 @@ const processMessage = async (
 								'CTWA: Successfully recovered message via placeholder resend'
 							)
 
+							// Normalize LID→PN in PDO-recovered message key before emitting
+							// eslint-disable-next-line max-depth
+							if (webMessageInfo.key && signalRepository) {
+								await normalizeKeyLidToPn(webMessageInfo.key as WAMessageKey, signalRepository.lidMapping, logger)
+							}
+
 							// wait till another upsert event is available, don't want it to be part of the PDO response message
 							// TODO: parse through proper message handling utilities (to add relevant key fields)
 							ev.emit('messages.upsert', {