Implement connection keycode logic (#25176)

builddefs/common_features.mk

@@ -892,8 +892,8 @@ ifeq ($(strip $(BLUETOOTH_ENABLE)), yes)
     OPT_DEFS += -DBLUETOOTH_ENABLE
     OPT_DEFS += -DBLUETOOTH_$(strip $(shell echo $(BLUETOOTH_DRIVER) | tr '[:lower:]' '[:upper:]'))
     NO_USB_STARTUP_CHECK := yes
+    CONNECTION_ENABLE := yes
     COMMON_VPATH += $(DRIVER_PATH)/bluetooth
-    SRC += outputselect.c process_connection.c
 
     ifeq ($(strip $(BLUETOOTH_DRIVER)), bluefruit_le)
         SPI_DRIVER_REQUIRED = yes

builddefs/generic_features.mk

@@ -25,6 +25,7 @@ GENERIC_FEATURES = \
     CAPS_WORD \
     COMBO \
     COMMAND \
+    CONNECTION \
     CRC \
     DEFERRED_EXEC \
     DIGITIZER \