[BT] Fix BLE MQTT command trigger a reset (#1698)

Problem introduced with the bump of ESP32 platform from 3.5.0 to 6.1.0

main/ZgatewayBT.ino

@@ -1361,7 +1361,8 @@ void MQTTtoBTAction(JsonObject& BTdata) {
   if (BTdata.containsKey("SBS1")) {
     strcpy(action.addr, (const char*)BTdata["mac"]);
     action.write = true;
-    action.value = BTdata["SBS1"].as<std::string>();
+    std::string val = BTdata["SBS1"].as<std::string>(); // Fix #1694
+    action.value = val;
     action.ttl = 1;
     createOrUpdateDevice(action.addr, device_flags_connect,
                          TheengsDecoder::BLE_ID_NUM::SBS1, 1);
@@ -1397,7 +1398,8 @@ void MQTTtoBTAction(JsonObject& BTdata) {
     strcpy(action.addr, (const char*)BTdata["ble_write_address"]);
     action.service = NimBLEUUID((const char*)BTdata["ble_write_service"]);
     action.characteristic = NimBLEUUID((const char*)BTdata["ble_write_char"]);
-    action.value = std::string((const char*)BTdata["ble_write_value"]);
+    std::string val = BTdata["ble_write_value"].as<std::string>(); // Fix #1694
+    action.value = val;
     action.write = true;
     Log.trace(F("BLE ACTION Write" CR));
   } else if (BTdata.containsKey("ble_read_address") &&
@@ -1464,7 +1466,7 @@ void MQTTtoBT(char* topicOri, JsonObject& BTdata) { // json object decoding
     if (BTdata.containsKey("lowpowermode")) {
       changelowpowermode((int)BTdata["lowpowermode"]);
     }
-
+  } else if (cmpToMainTopic(topicOri, subjectMQTTtoBT)) {
     MQTTtoBTAction(BTdata);
   }
 }

main/config_BT.h

@@ -46,6 +46,7 @@ extern int btQueueLengthCount;
 /*-----------BT TOPICS & COMPILATION PARAMETERS-----------*/
 #define subjectBTtoMQTT    "/BTtoMQTT"
 #define subjectMQTTtoBTset "/commands/MQTTtoBT/config"
+#define subjectMQTTtoBT    "/commands/MQTTtoBT"
 // Uncomment to send undecoded device data to another gateway device for decoding
 // #define MQTTDecodeTopic    "undecoded"
 #ifndef UseExtDecoder