debug: disable STA reconnect during LilyGO bringup

firmware/esp32/overland-controller/config.h

@@ -24,3 +24,6 @@
 
 #define DASHBOARD_UART_ENABLED 0
 #define DASHBOARD_UART_BAUD   115200
+
+// Bring-up safety: keep AP stable while validating LilyGO hardware.
+#define WIFI_STA_AUTOCONNECT_ENABLED 0

firmware/esp32/overland-controller/overland-controller.ino

@@ -2127,6 +2127,9 @@ void connectStaWifi() {
 }
 
 void maintainStaWifi() {
+#if !WIFI_STA_AUTOCONNECT_ENABLED
+    return;
+#endif
     if (wifiNetworkCount <= 0) return;
 
     if (WiFi.status() == WL_CONNECTED) return;
@@ -4182,15 +4185,10 @@ void setup() {
 }
 
 void loop() {
-    Serial.println("LOOP: server");
     server.handleClient();
-    Serial.println("LOOP: wifi");
     maintainStaWifi();
-    Serial.println("LOOP: debug");
     handleDebugSerial();
-    Serial.println("LOOP: bms");
     updateBms();
-    Serial.println("LOOP: alarms");
     updateAlarms();
 #if DASHBOARD_UART_ENABLED
     pollDashboardUart();
@@ -4200,7 +4198,6 @@ void loop() {
     static unsigned long lastSensorUpdate = 0;
 
     if (millis() - lastSensorUpdate > 5000) {
-        Serial.println("LOOP: sensors");
         updateSensors();
         lastSensorUpdate = millis();
         logDebug("Sensor Update");