fix: fabricator recipes now use correct elemental mana type

- fabricator-recipes.ts: add optional manaType param to canCraftRecipe for clarity
- FabricatorSubTab.tsx: read elemental mana from store based on recipe manaType instead of always using rawMana
- craftingStore.ts: add startFabricatorCrafting action that deducts correct mana type
- craftingStore.types.ts: add startFabricatorCrafting to CraftingActions interface
- crafting-fabricator.ts: new helper file to keep craftingStore.ts under 400 lines

Fixes #155

src/lib/game/data/fabricator-recipes.ts

@@ -206,6 +206,7 @@ export function canCraftRecipe(
   recipe: FabricatorRecipe,
   materials: Record<string, number>,
   manaAmount: number,
+  manaType?: string,
 ): { canCraft: boolean; missingMaterials: Record<string, number>; missingMana: number } {
   const missingMaterials: Record<string, number> = {};
   let canCraft = true;
@@ -218,6 +219,9 @@ export function canCraftRecipe(
     }
   }
 
+  // If manaType is provided, manaAmount is already the correct pool value.
+  // Otherwise fall back to treating manaAmount as raw mana (backward compat).
+  const effectiveManaType = manaType ?? recipe.manaType;
   const missingMana = Math.max(0, recipe.manaCost - manaAmount);
   if (missingMana > 0) {
     canCraft = false;