fix: 拼音搜索补充字映射 + 结果按匹配度排序

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

frontend/src/views/RecipeManager.vue

@@ -677,9 +677,17 @@ function handleSmartPaste() {
 function filteredOilNames(search) {
   if (!search) return oils.oilNames
   const q = search.toLowerCase()
-  return oils.oilNames.filter(name =>
+  const results = oils.oilNames.filter(name =>
     name.toLowerCase().includes(q) || matchesPinyinInitials(name, q)
   )
+  // Sort: pinyin prefix match first, then name contains, then rest
+  results.sort((a, b) => {
+    const aPin = matchesPinyinInitials(a, q) ? 0 : 1
+    const bPin = matchesPinyinInitials(b, q) ? 0 : 1
+    if (aPin !== bPin) return aPin - bPin
+    return a.localeCompare(b, 'zh')
+  })
+  return results
 }
 
 function selectOil(ing, name) {