MineTracer

Changelog:

• Added minetracer$hasRelevantSlots flag to skip tracking entirely when no items are present
• Ultra-fast early exit if no container slots have items
• Quick container vs player inventory detection

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• Pre-sized HashMap with typical chest size (27 slots) to avoid resizing
• Only store non-empty ItemStacks (most container slots are empty most of the time)
• Clear tracking map immediately after use to free memory

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• Cache container position once per interaction instead of looking it up for each slot
• Skip empty-to-empty slot transitions entirely (most common case)
• Batch process only changed slots

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• Only track container slots, never player inventory slots
• Skip processing if no relevant slots contain items
• Single pass through slots instead of multiple iterations