Initial client scaffold

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

config/inventoryessentials-common.toml

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+#Should holding shift and moving your mouse over items quick-transfer them without requiring each to be clicked?
+enableShiftDrag = true
+#Should space-clicking an item move all items from that inventory at once?
+enableBulkTransferAll = true
+#Should ctrl-clicking only move one item at a time instead of the full stack?
+enableSingleTransfer = true
+#Use the client implementation even on servers that have the mod installed - only useful for development purposes.
+forceClientImplementation = false
+#Should space-clicking move all items even if an empty slot was clicked?
+allowBulkTransferAllOnEmptySlot = false
+#Should space-clicking armor in the inventory swap to all matching armor?
+bulkTransferArmorSets = true
+#Should control-space-clicking an item move one of each item from that inventory at once?
+enableBulkTransferSingle = true
+#Should shift-ctrl-clicking move all items of the same type at once?
+enableBulkTransfer = true
+#Should shift-ctrl-drop-clicking drop all items of the same type at once?
+enableBulkDrop = true
+#Choose how middle-click inventory sorting should behave.
+#Allowed Values: CONSOLIDATE_ONLY, RETAIN_ORDER, ALPHABETICAL, CREATIVE
+inventorySorting = "CREATIVE"
+#Should broken tools automatically be replaced from the inventory?
+enableToolRefill = true
+#Should depleted block stacks automatically be replaced from the inventory?
+enableStackRefill = true