Add BMS CAN initialization failure monitor

Introduces a new sensor ID and BooleanMonitor for BMS CAN initialization failure. Updates string and abbreviation mappings to support the new monitor, enabling alerting when BMS CAN initialization fails.

Author: zjwhitehead

inc/sp140/simple_monitor.h

@@ -59,6 +59,7 @@ enum class SensorID {
   BMS_Voltage_Differential,
   BMS_Charge_MOS,
   BMS_Discharge_MOS,
+  BMS_CAN_Init_Failure,
 
   // Altimeter
   Baro_Temp,

src/sp140/bms_monitors.cpp

@@ -9,6 +9,9 @@ extern MultiLogger multiLogger;
 // External references to thread-safe data copies
 extern STR_BMS_TELEMETRY_140 monitoringBmsData;
 
+// External reference to BMS CAN initialization status
+extern bool bmsCanInitialized;
+
 void addBMSMonitors() {
   // BMS MOSFET Temperature (Warning: 50°C, Critical: 60°C) - with hysteresis
   static HysteresisSensorMonitor* bmsMosTemp = new HysteresisSensorMonitor(
@@ -125,4 +128,14 @@ void addBMSMonitors() {
     AlertLevel::CRIT_HIGH,
     &multiLogger);
   monitors.push_back(bmsDischargeMos);
+
+  // BMS CAN Initialization (Alert when failed)
+  static BooleanMonitor* bmsCanInitFailure = new BooleanMonitor(
+    SensorID::BMS_CAN_Init_Failure,
+    SensorCategory::BMS,
+    []() { return bmsCanInitialized; },
+    false,  // Alert when false (i.e., when initialization failed)
+    AlertLevel::WARN_HIGH,
+    &multiLogger);
+  monitors.push_back(bmsCanInitFailure);
 }

src/sp140/simple_monitor.cpp

@@ -123,6 +123,7 @@ const char* sensorIDToString(SensorID id) {
     case SensorID::BMS_Voltage_Differential: return "BMS_Voltage_Differential";
     case SensorID::BMS_Charge_MOS: return "BMS_Charge_MOS";
     case SensorID::BMS_Discharge_MOS: return "BMS_Discharge_MOS";
+    case SensorID::BMS_CAN_Init_Failure: return "BMS_CAN_Init_Failure";
 
     // Altimeter
     case SensorID::Baro_Temp: return "Baro_Temp";
@@ -180,6 +181,7 @@ const char* sensorIDToAbbreviation(SensorID id) {
     case SensorID::BMS_Voltage_Differential:return "BC-dV";
     case SensorID::BMS_Charge_MOS:          return "BC-CHG";
     case SensorID::BMS_Discharge_MOS:       return "BC-DSG";
+    case SensorID::BMS_CAN_Init_Failure:   return "BC-CAN";
 
     // Altimeter
     case SensorID::Baro_Temp: return "BARO-T";