Allow Add-Ons to transfer custom structures without losing achievements

[Feature Request: Cross-World Structure Saving for Marketplace Add-Ons]
Currently, the Script API and storage system for Bedrock Add-Ons are completely isolated within each world. Because of this, it is impossible for an add-on to remember a house or base built by a player and transfer it to a newly created survival world.
To use the vanilla Structure Block for cross-world transfers, players must enable cheats, which permanently disables achievements.
[My Proposal]
I would love to see a system where marketplace add-ons can securely save a player's custom built structure and allow them to paste it into another world where the same add-on is active, without disabling achievements.
[Why this is needed / Benefits]
1. Protecting Achievements: Players can start a new survival world and bring over their favorite custom-built bases or redstone contraptions that they spent hours designing, all while keeping achievements enabled.
2. Security & Integrity: Since the data would be handled entirely through the verified marketplace add-on system, players wouldn't be able to alter the files externally, ensuring the integrity of the survival mode.
3. Better Gameplay Flow: It would bridge the gap between creative building and long-term survival progression.
Please upvote if you want to bring your hard-earned survival bases to your next adventure!