fix: material cancellation refund uses flat 50% per spec §6.3

docs/circular-deps.txt

@@ -1,5 +1,5 @@
 # Circular Dependencies
-Generated: 2026-06-08T10:43:31.572Z
+Generated: 2026-06-08T10:56:12.135Z
 Found: 1 circular chain(s) — these MUST be fixed before modifying involved files.
 
 1. 1) stores/golem-combat-actions.ts > stores/golem-combat-helpers.ts

docs/dependency-graph.json

@@ -1,6 +1,6 @@
 {
   "_meta": {
-    "generated": "2026-06-08T10:43:29.519Z",
+    "generated": "2026-06-08T10:56:10.139Z",
     "description": "Import dependency graph for src/lib/game. Keys are files, values are arrays of files they import.",
     "usage": "To find what a file affects, search for its path in the VALUES. To find what a file depends on, look at its KEY entry."
   },

src/lib/game/stores/pipelines/equipment-crafting.ts

@@ -74,13 +74,13 @@ export function cancelEquipmentCrafting(get: GetFn, set: SetFn): void {
       const refunded = refundFabricatorMana(recipe, manaRefund, rawMana, elements);
       useManaStore.setState({ rawMana: refunded.rawMana, elements: refunded.elements });
 
-      // Refund materials — use reduced amounts (what player actually paid)
+      // Refund materials — flat 50% per spec §6.3
       const reduction = getCraftingCostReduction();
       const currentMaterials = get().lootInventory.materials;
       const refundedMaterials = { ...currentMaterials };
       for (const [matId, rawAmount] of Object.entries(recipe.materials)) {
         const reducedAmount = applyCostReduction(rawAmount, reduction);
-        const refundAmount = Math.floor(reducedAmount * remainingFraction);
+        const refundAmount = Math.floor(reducedAmount * 0.5);
         if (refundAmount > 0) {
           refundedMaterials[matId] = (refundedMaterials[matId] || 0) + refundAmount;
         }
@@ -98,16 +98,13 @@ export function cancelEquipmentCrafting(get: GetFn, set: SetFn): void {
       progress.progress,
       progress.required,
     );
-    // Refund materials proportionally to remaining progress
+    // Refund materials — flat 50% per spec §6.3
     const recipe = CraftingEquipment.getRecipe(progress.blueprintId);
     if (recipe) {
-      const remainingFraction = progress.required > 0
-        ? Math.max(0, (progress.required - progress.progress) / progress.required)
-        : 1;
       const currentMaterials = get().lootInventory.materials;
       const refundedMaterials = { ...currentMaterials };
       for (const [matId, amount] of Object.entries(recipe.materials)) {
-        const refundAmount = Math.floor(amount * remainingFraction);
+        const refundAmount = Math.floor(amount * 0.5);
         if (refundAmount > 0) {
           refundedMaterials[matId] = (refundedMaterials[matId] || 0) + refundAmount;
         }