Adventure Tents 2.1.4 storage safety patch

- Recovery bags for small, medium, and large route through the same core pack safety pipeline.
- Recovery finalizers no longer do a second raw save after the verified core save.
- Large recovery bags now route through the explicit large recovery function, including legacy size/color recovery bags.
- Large recovery finalizer now drops a Large Tent item, not a small/medium item.
- Medium and large upgrade bags verify the migrated storage slot before item replacement/upgraded packing can complete.
- Upgrade migration functions ensure the target save path exists before copying saved items.
- Debug no-save still simulates failed storage, but no longer posts a debug actionbar on allowed empty-barrel packs.
