fix: handle duplicate component keys in conversion cost recipes

docs/circular-deps.txt

@@ -1,5 +1,5 @@
 # Circular Dependencies
-Generated: 2026-06-10T19:48:45.847Z
+Generated: 2026-06-10T19:51:19.886Z
 Found: 3 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": "2026-06-10T19:48:43.733Z",
+    "generated": "2026-06-10T19:51:17.712Z",
     "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/data/conversion-costs.ts

@@ -39,37 +39,46 @@ function baseElementCost(element: string): ConversionCost {
 
 /** Build a ConversionCost for a composite element (distance 2) */
 function compositeElementCost(element: string, components: string[]): ConversionCost {
+  const costPerComponent = computeComponentCost(2); // 30 each
+  const componentCosts: Record<string, number> = {};
+  for (const c of components) {
+    componentCosts[c] = (componentCosts[c] || 0) + costPerComponent;
+  }
   return {
     element,
     distance: 2,
     rawCost: computeRawCost(2), // 1,000
-    componentCosts: Object.fromEntries(
-      components.map(c => [c, computeComponentCost(2)]), // 30 each
-    ),
+    componentCosts,
   };
 }
 
 /** Build a ConversionCost for an exotic element (distance 3) */
 function exoticElementCost(element: string, components: string[]): ConversionCost {
+  const costPerComponent = computeComponentCost(3); // 40 each
+  const componentCosts: Record<string, number> = {};
+  for (const c of components) {
+    componentCosts[c] = (componentCosts[c] || 0) + costPerComponent;
+  }
   return {
     element,
     distance: 3,
     rawCost: computeRawCost(3), // 10,000
-    componentCosts: Object.fromEntries(
-      components.map(c => [c, computeComponentCost(3)]), // 40 each
-    ),
+    componentCosts,
   };
 }
 
 /** Build a ConversionCost for time (distance 4) */
 function timeElementCost(element: string, components: string[]): ConversionCost {
+  const costPerComponent = computeComponentCost(4); // 50 each
+  const componentCosts: Record<string, number> = {};
+  for (const c of components) {
+    componentCosts[c] = (componentCosts[c] || 0) + costPerComponent;
+  }
   return {
     element,
     distance: 4,
     rawCost: computeRawCost(4), // 100,000
-    componentCosts: Object.fromEntries(
-      components.map(c => [c, computeComponentCost(4)]), // 50 each
-    ),
+    componentCosts,
   };
 }