fix: 补全剩余硬编码单位 — 配方分享文本和商业核算消耗分析

- RecipeDetailOverlay: 分享文本 ing.drops滴 → unitLabel
- Projects: 消耗分析 每滴→单价, drops滴→unitLabel

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

frontend/src/components/RecipeDetailOverlay.vue

@@ -483,7 +483,7 @@ function copyText() {
   const ings = cardIngredients.value
   const lines = ings.map(ing => {
     const cost = oilsStore.pricePerDrop(ing.oil) * ing.drops
-    return `${ing.oil} ${ing.drops}滴 ${oilsStore.fmtPrice(cost)}`
+    return `${ing.oil} ${ing.drops}${oilsStore.unitLabel(ing.oil)} ${oilsStore.fmtPrice(cost)}`
   })
   const total = priceInfo.value.cost
   const text = [