Add ButtonComboAPI support

source/utils/storage/StorageItem.cpp

@@ -4,10 +4,12 @@
 #include "utils/logger.h"
 
 StorageItem::StorageItem(const std::string_view key) : mKey(key) {
+    // Abuse this as a stable handle that references itself and survives std::move
+    *mHandle = reinterpret_cast<uint32_t>(mHandle.get());
 }
 
 uint32_t StorageItem::getHandle() const {
-    return reinterpret_cast<uint32_t>(this);
+    return *mHandle;
 }
 
 void StorageItem::setValue(const std::string &value) {

source/utils/storage/StorageItem.h

@@ -1,5 +1,6 @@
 #pragma once
 #include <cstdint>
+#include <memory>
 #include <string>
 #include <variant>
 #include <vector>
@@ -78,4 +79,6 @@ private:
     std::string mKey                                                                                       = {};
 
     bool mBinaryConversionDone = true;
+
+    std::unique_ptr<uint32_t> mHandle = std::make_unique<uint32_t>();
 };