fix(core): Assert BLE device name is correct length

app/src/ble.c

@@ -63,6 +63,8 @@ static uint8_t active_profile;
 #define DEVICE_NAME CONFIG_BT_DEVICE_NAME
 #define DEVICE_NAME_LEN (sizeof(DEVICE_NAME) - 1)
 
+BUILD_ASSERT(DEVICE_NAME_LEN <= 16, "ERROR: BLE device name is too long. Max length: 16");
+
 #define IS_HOST_PERIPHERAL                                                                         \
     (!IS_ENABLED(CONFIG_ZMK_SPLIT) || IS_ENABLED(CONFIG_ZMK_SPLIT_BLE_ROLE_CENTRAL))
 #define IS_SPLIT_PERIPHERAL                                                                        \