EquipmentSlotMapper

Infers an armor slot from an equipment file's layers keys plus filename hints, then maps slot → list of vanilla base armor item identifiers.

Per the Minecraft Wiki Equipment page, equipment JSON contains layers but no slot field. The Option J plan's algorithm is therefore best-effort:

• humanoid_leggings → legs
• wings → chest (elytra-bearing)
• humanoid alone → ambiguous (head/chest/feet); combine with filename hint
• humanoid_baby → all four slots (rare)