feat: 智能识别多配方逐条编辑、椰子油单位识别、名称修复

- 多配方识别后逐条填入完整编辑表单，保存后自动加载下一条
- 队列指示条可切换/删除/全部保存，表单修改实时同步
- 椰子油写滴数→单次模式，写ml→对应容量模式
- 2字以下不做编辑距离模糊匹配，避免"美容"→"宽容"
- 首个非精油带数字的词识别为配方名（如"美容1"→名称"美容"）
- 无名配方留空，点击直接输入

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

frontend/src/composables/useSmartPaste.js

@@ -86,7 +86,8 @@ export function findOil(input, oilNames) {
     }
   }
 
-  // 5. Edit distance fuzzy match
+  // 5. Edit distance fuzzy match (only for 3+ char inputs to avoid false positives)
+  if (trimmed.length < 3) return null
   let bestMatch = null
   let bestDist = Infinity
   for (const name of oilNames) {
@@ -158,9 +159,11 @@ export function parseOilChunk(text, oilNames) {
     let amount = parseFloat(match[2])
     const unit = match[3] || ''
 
+    const isMl = unit && (unit.toLowerCase() === 'ml' || unit === '毫升')
+    let drops = amount
     // Convert ml to drops
-    if (unit && (unit.toLowerCase() === 'ml' || unit === '毫升')) {
-      amount = Math.round(amount * 20)
+    if (isMl) {
+      drops = Math.round(amount * 20)
     }
 
     // Try greedy match on the name part
@@ -170,14 +173,18 @@ export function parseOilChunk(text, oilNames) {
       for (let i = 0; i < matched.length - 1; i++) {
         results.push({ oil: matched[i], drops: 1 })
       }
-      results.push({ oil: matched[matched.length - 1], drops: amount })
+      const item = { oil: matched[matched.length - 1], drops }
+      if (isMl) { item._ml = amount }
+      results.push(item)
     } else {
       // Try findOil as fallback
       const found = findOil(namePart, oilNames)
       if (found) {
-        results.push({ oil: found, drops: amount })
+        const item = { oil: found, drops }
+        if (isMl) { item._ml = amount }
+        results.push(item)
       } else if (namePart) {
-        results.push({ oil: namePart, drops: amount, notFound: true })
+        results.push({ oil: namePart, drops, notFound: true })
       }
     }
   }
@@ -291,7 +298,7 @@ export function parseSingleBlock(raw, oilNames) {
   }
 
   return {
-    name: name || '未命名配方',
+    name: name || '',
     ingredients: deduped,
     notFound
   }
@@ -358,19 +365,23 @@ export function parseMultiRecipes(raw, oilNames) {
 
   for (const part of parts) {
     const hasNumber = /\d/.test(part)
+    const textPart = part.replace(/\d+\.?\d*/g, '').trim()
     const hasOil = oilNames.some(oil => part.includes(oil)) ||
                    Object.keys(OIL_HOMOPHONES).some(alias => part.includes(alias))
     // Also check fuzzy: 3+ char parts
-    const fuzzyOil = !hasOil && part.replace(/\d+\.?\d*/g, '').length >= 2 &&
-                     findOil(part.replace(/\d+\.?\d*/g, '').trim(), oilNames)
+    const fuzzyOil = !hasOil && textPart.length >= 2 &&
+                     findOil(textPart, oilNames)
+    // First part only: has number but text is not any oil → likely a name like "美容1"
+    const isFirstNameWithNumber = !current.foundOil && current.nameParts.length === 0 &&
+      current.ingredientParts.length === 0 && hasNumber && !hasOil && !fuzzyOil && textPart.length >= 2
 
     if (current.foundOil && !hasOil && !fuzzyOil && !hasNumber && part.length >= 2) {
       // New recipe starts
       recipes.push(current)
       current = { nameParts: [], ingredientParts: [], foundOil: false }
       current.nameParts.push(part)
-    } else if (!current.foundOil && !hasOil && !fuzzyOil && !hasNumber) {
-      current.nameParts.push(part)
+    } else if ((!current.foundOil && !hasOil && !fuzzyOil && !hasNumber) || isFirstNameWithNumber) {
+      current.nameParts.push(isFirstNameWithNumber ? textPart : part)
     } else {
       current.foundOil = true
       current.ingredientParts.push(part)
@@ -401,7 +412,7 @@ export function parseMultiRecipes(raw, oilNames) {
       }
     }
     return {
-      name: r.nameParts.join(' ') || '未命名配方',
+      name: r.nameParts.join(' ') || '',
       ingredients: deduped,
       notFound,
     }