Integrate upstream fixes and paired nRF52 sensor OTA release profiles

src/helpers/nrf52/SerialBLEInterface.cpp

@@ -691,8 +691,11 @@ bool SerialBLEInterface::begin(const char* prefix, const char* name,
   char charpin[20];
   snprintf(charpin, sizeof(charpin), "%lu", (unsigned long)pin_code);
   
-  // If we want to control BLE LED ourselves, uncomment this:
-  // Bluefruit.autoConnLed(false);
+#ifdef DISABLE_BLE_LED
+  // Opt out of Bluefruit's automatic LED control without changing the normal
+  // board/library default or the application's own LED handling.
+  Bluefruit.autoConnLed(false);
+#endif
   // Configure individual connection values rather than the all-or-nothing
   // Bluefruit preset. Defaults are identical to BANDWIDTH_MAX; constrained
   // board profiles can lower event/buffer reservations without shrinking the