set leds on/off

zephcore/app/main_observer.cpp

@@ -38,6 +38,7 @@ LOG_MODULE_REGISTER(zephcore_observer_main, CONFIG_ZEPHCORE_MAIN_LOG_LEVEL);
 #include <ZephyrWiFiStation.h>
 #include <ZephyrMQTTPublisher.h>
 #include "observer_creds.h"
+#include <helpers/led_gate.h>
 
 /* ========== LED (optional) ========== */
 
@@ -357,6 +358,15 @@ int main(void)
 		data_store.savePrefs(*prefs);
 	}
 
+	/* Apply the persisted LED master switch. The observer has no CLI of its own
+	 * to change it, but a unit reflashed from a repeater build keeps the setting
+	 * — and it still drives lora-tx-led on TX-capable boards. */
+	{
+		bool leds_off = prefs->leds_disabled != 0;
+		zephcore_leds_set_disabled(leds_off);
+		LOG_INF("LEDs: %s (from prefs)", leds_off ? "disabled" : "enabled");
+	}
+
 	/* Initialize USB serial for CLI */
 #if ZEPHCORE_USB_STACK && DT_HAS_COMPAT_STATUS_OKAY(zephyr_cdc_acm_uart)
 	usb_dev = DEVICE_DT_GET_ONE(zephyr_cdc_acm_uart);