Fix hooks.h friend declaration for MCU drivers

Changed from device-specific nRF52840 friend declaration to the templated MCU Base class to avoid breaking compilation for non-nRF52 devices.

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Co-Authored-By: Claude <[email protected]>

Author: obra

src/kaleidoscope/hooks.h

@@ -71,7 +71,7 @@ class Hooks {
   friend class plugin::LEDControl;
   friend class driver::ble::BLEBluefruit;  // Allow BLEBluefruit to trigger hooks
   template<typename _Props>
-  friend class driver::mcu::nRF52840;  // Allow nRF52840 to trigger USB connection hooks
+  friend class driver::mcu::Base;  // Allow MCU drivers to trigger USB connection hooks
   friend void sketch_exploration::pluginsExploreSketch();
 
  private: