Add Hardcore World Integrity & History Tracking

Minecraft Hardcore is built around one rule: you have only one life. This creates tension and makes survival records meaningful. However, there is currently no built-in way to verify the history and integrity of a Hardcore world. World duplication, backups, restores, and world replacement are useful for protecting players from data loss. I am NOT suggesting that these features should be removed. The problem is that they can make it impossible to verify whether a Hardcore world has survived without being restored or replaced. I suggest adding a permanent, tamper-resistant history system for Hardcore worlds. Each Hardcore world could have a unique World ID and a history recording: • World creation and Hardcore activation date • Parent/child relationships when a world is duplicated • Backup and restore history • Death status and death date This information should be tied to the World ID rather than the editable world name. If a Hardcore world is duplicated, Minecraft could record the original World ID, the new Clone World ID, and the date of duplication. If a Hardcore world dies, that death should remain recorded. If an earlier backup is restored, that restoration should also remain visible instead of silently returning the world to an earlier state. This would keep backups and duplication available while making Hardcore records more trustworthy. Adding verifiable world history would protect not only the one-life gameplay, but also the integrity of the record itself.