Add bounded Morse receive and negotiated RS232 autosleep

Add native narrow-band CW capture, ACK-first remote sessions, retained LoRa-readable pages, checked restoration and transport-safe progress. Add stock-compatible negotiated heartbeat/autosleep and recovery. Include host regressions and identity-bound HIL runners; keep unverified faster tuning HIL-only and document outstanding hardware validation.

examples/simple_sensor/Tracker.cpp

@@ -266,6 +266,7 @@ bool SensorMesh::handleTrackerPath(mesh::Packet* packet, uint8_t* path, uint8_t
 
 void SensorMesh::onSendComplete(mesh::Packet* packet) {
   mesh::Mesh::onSendComplete(packet);
+  _cli.morseReply().complete(packet);
   if (!tracker_pending || !packet || packet->getPayloadType() != PAYLOAD_TYPE_REQ) return;
   uint8_t hash[MAX_HASH_SIZE];
   packet->calculatePacketHash(hash);
@@ -277,6 +278,7 @@ void SensorMesh::onSendComplete(mesh::Packet* packet) {
 
 void SensorMesh::onSendFail(mesh::Packet* packet) {
   mesh::Mesh::onSendFail(packet);
+  _cli.morseReply().fail(packet);
   if (!tracker_pending || !packet) return;
   uint8_t hash[MAX_HASH_SIZE];
   packet->calculatePacketHash(hash);