Add two-profile LoRa operation and radio CLI regression coverage

Implement radio2, tempradio2, radioat2 and tempradioat2 across Mesh roles,
with RX-only/RX+TX operation, optional preambles and persistent cross-TX
policy. Keep temporary OTA traffic on its profile by default and maintain
independent retry ownership and backoff for each profile.

Use slow-first receive scanning with 4.8-symbol visits and automatic
preambles rounded up in steps of eight. Preserve pending RX, restore power
saving on exit, and discard work bound to changed or expired profiles.

Restore the infrastructure path.hash.mode setter and report unsupported
extra.sf settings consistently. Add CLI, scheduling, scan and retry tests,
setup documentation, and the V4/XIAO hardware validation results.

Validation: 1,422 native tests, eight KISS tests, 63 final focused profile
tests, 18 checks from the staged source, sanitizer-enabled OTA transfers,
and builds for V4 Mesh roles, Full XIAO Companion and nRF52 T1000-E.
Hardware checks cover reception, cross-TX policy, expiry, reboot and OTA
discovery while receiving main-channel adverts.

examples/simple_room_server/MyMesh.cpp

@@ -438,7 +438,7 @@ bool MyMesh::isLooped(const mesh::Packet* packet,
 int MyMesh::calcRxDelayForPacket(const mesh::Packet* packet, float score,
                                  uint32_t air_time) {
   if (packet != NULL && packet->getPayloadType() == PAYLOAD_TYPE_OTA
-      && isTempRadioActive()) return 0;
+      && isPacketOnTempRadio(packet)) return 0;
   bool fast_track = false;
   if (!evaluateFloodRuleTiming(packet, fast_track)) {
     return calcRxDelay(score, air_time);
@@ -1458,8 +1458,9 @@ bool MyMesh::applySavedRadioParams() {
   uint32_t timings[2] = {_prefs.rx_ps_rx_us, _prefs.rx_ps_sleep_us};
   const uint32_t* applied_timings = _prefs.rx_powersaving_enabled
       && radio_driver.supportsRxPowerSaving() ? timings : NULL;
-  if (!radio_driver.setParams(
-        _prefs.freq, _prefs.bw, _prefs.sf, _prefs.cr, applied_timings)) {
+  if (_cli.radioProfiles().applyPrimary(
+        _prefs.freq, _prefs.bw, _prefs.sf, _prefs.cr, false,
+        _cli.radioProfiles().primaryPreamble(), applied_timings) != mesh::RadioParamApplyResult::APPLIED) {
     return false;
   }
   active_cr = _prefs.cr;
@@ -1517,7 +1518,8 @@ void MyMesh::sendFloodReply(mesh::Packet* packet, unsigned long delay_millis, ui
   }
 }
 
-void MyMesh::applyTempRadioParams(float freq, float bw, uint8_t sf, uint8_t cr, int timeout_mins) {
+void MyMesh::applyTempRadioParams(float freq, float bw, uint8_t sf, uint8_t cr, int timeout_mins, uint16_t preamble) {
+  pending_preamble = preamble;
   radio_apply_retry_at = 0;
   radio_apply_failures = 0;
   set_radio_at = futureMillis(2000); // give CLI reply some time to be sent back, before applying temp radio params
@@ -2585,8 +2587,8 @@ void MyMesh::loop() {
     uint32_t timings[2] = {rx_us, sleep_us};
     const uint32_t* applied_timings = _prefs.rx_powersaving_enabled
         && radio_driver.supportsRxPowerSaving() ? timings : NULL;
-    if (timing_ok && radio_driver.setParams(
-          pending_freq, pending_bw, pending_sf, pending_cr, applied_timings)) {
+    if (timing_ok && _cli.radioProfiles().applyPrimary(
+          pending_freq, pending_bw, pending_sf, pending_cr, true, pending_preamble, applied_timings) == mesh::RadioParamApplyResult::APPLIED) {
       set_radio_at = 0;
       active_cr = pending_cr;
       temp_radio_applied = true;
@@ -2783,7 +2785,7 @@ void MyMesh::loop() {
   }
 #endif
 #if defined(ENABLE_OTA) && OTA_DYNAMIC_CONTEXT
-  mesh::ota::ota_service_temp_radio_context(isTempRadioActive());
+  mesh::ota::ota_service_temp_radio_context(isAnyTempRadioActive());
 #endif
 }
 
@@ -2838,6 +2840,7 @@ uint32_t MyMesh::getPowerSaveSleepSeconds(uint32_t max_secs) const {
 
 // To check if there is pending work
 bool MyMesh::hasPendingWork() const {
+  if (isDualRadioActive()) return true;
   if (hasPendingOtaApply()) return true;
 #if defined(WITH_WEBCONFIG) || defined(ETHERNET_ENABLED)
   if (_local_cli_output.busy()) return true;