Adventure Tents 2.2.2 — Minecraft Java 26.2 music-disc input

Input-system replacement:
- Replaced carrot-on-a-stick custom items in the atent and sbag namespaces with minecraft:music_disc_strad.
- Every converted custom-use item removes jukebox_playable and adds the proven food + long consumable components.
- Right-click detection now uses minecraft:using_item advancements modeled on the known-working 26.2 Gamingbarn pattern.
- Removed the obsolete minecraft.used:minecraft.carrot_on_a_stick polling path and its tick calls.
- Preserved existing custom_data, item_model, names, placement, packing, validation, storage, and tent logic.
