BigStacks

Fixed

• Iron Furnaces stuck at 64: Iron Furnaces hardcodes the vanilla 64 cap in its smelting logic (Math.min(getMaxStackSize(), 64) in canSmelt and a fixed 64 in the multi-smelt output math), ignoring BigStacks entirely. Added a dedicated compatibility mixin that removes that cap and uses the real configured stack size instead.
• ItemStackHandler-based inventories capped at 64: NeoForge's ItemStackHandler#getSlotLimit enforced 64 per slot in some modded containers. It now returns the real max stack size (or the global config when the slot is empty), keeping full stacks in those inventories.
• Conflict with Enchanting Infuser / Apothic Enchanting: items with durability (tools, weapons, armor) are now excluded from BigStacks — they keep vanilla stacking behavior, so enchantment menus display enchantments correctly again.
• Startup crash from mixin plugin: a mixin config plugin ran too early in the loading phase (before FML's ModList was initialized), crashing the game on launch. Removed it; the Iron Furnaces mixin now applies automatically only when that mod is present.

Notes

• Tools, weapons and armor are intentionally never affected by BigStacks (they don't stack in vanilla, and uncapping them broke enchanting GUIs).