feat: 商业核算+个人库存+认证优化

商业核算:
- 加标语和示意项目（芳香调理），所有人可体验
- 管理员开放（不需认证）
- 新增项目需认证，未认证提示

个人库存:
- 搜索直接添加（回车或点击）
- 4个套装快捷按钮（家庭医生/居家呵护3988/芳香调理/全精油）
- 精油库默认折叠
- 配方匹配排除椰子油，降低门槛（至少1种匹配）

商业认证:
- 简化为商户名+证明图片
- 通过后内容仍显示（和二维码页面一致）
- 审核中内容不可修改

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

frontend/src/views/Inventory.vue

@@ -1,29 +1,29 @@
 <template>
   <div class="inventory-page">
-    <!-- Search -->
+    <!-- Search + direct add -->
     <div class="search-box">
       <input
         class="search-input"
         v-model="searchQuery"
-        placeholder="搜索精油..."
+        placeholder="搜索精油名称，回车添加..."
+        @keydown.enter="addFromSearch"
       />
       <button v-if="searchQuery" class="search-clear-btn" @click="searchQuery = ''">✕</button>
     </div>
-
-    <!-- Oil Picker Grid -->
-    <div class="section-label">点击添加到库存</div>
-    <div class="oil-picker-grid">
-      <div
-        v-for="name in filteredOilNames"
-        :key="name"
-        class="oil-pick-chip"
-        :class="{ owned: ownedSet.has(name) }"
-        @click="toggleOil(name)"
-      >
+    <!-- Search results for direct add -->
+    <div v-if="searchQuery && searchResults.length" class="search-results">
+      <div v-for="name in searchResults" :key="name" class="search-result-item" @click="addOil(name)">
         <span class="pick-dot" :class="{ active: ownedSet.has(name) }">{{ ownedSet.has(name) ? '✓' : '+' }}</span>
-        <span class="pick-name">{{ name }}</span>
+        {{ name }}
       </div>
-      <div v-if="filteredOilNames.length === 0" class="empty-hint">未找到精油</div>
+    </div>
+
+    <!-- Quick add kits -->
+    <div class="kit-bar">
+      <button class="kit-btn" @click="addKit('family')">家庭医生</button>
+      <button class="kit-btn" @click="addKit('home3988')">居家呵护(3988)</button>
+      <button class="kit-btn" @click="addKit('aroma')">芳香调理</button>
+      <button class="kit-btn" @click="addKit('full')">全精油</button>
     </div>
 
     <!-- Owned Oils Section -->
@@ -36,7 +36,25 @@
         {{ name }} ✕
       </div>
     </div>
-    <div v-else class="empty-hint">暂未添加精油，点击上方精油添加到库存</div>
+    <div v-else class="empty-hint">搜索添加精油，或点击上方套装快捷添加</div>
+
+    <!-- Oil Picker Grid (collapsed by default) -->
+    <div class="section-header clickable" @click="showPicker = !showPicker">
+      <span>📦 全部精油</span>
+      <span class="toggle-icon">{{ showPicker ? '▾' : '▸' }}</span>
+    </div>
+    <div v-if="showPicker" class="oil-picker-grid">
+      <div
+        v-for="name in oils.oilNames"
+        :key="name"
+        class="oil-pick-chip"
+        :class="{ owned: ownedSet.has(name) }"
+        @click="toggleOil(name)"
+      >
+        <span class="pick-dot" :class="{ active: ownedSet.has(name) }">{{ ownedSet.has(name) ? '✓' : '+' }}</span>
+        <span class="pick-name">{{ name }}</span>
+      </div>
+    </div>
 
     <!-- Matching Recipes Section -->
     <div class="section-header" style="margin-top:20px">
@@ -85,32 +103,86 @@ const ui = useUiStore()
 const searchQuery = ref('')
 const ownedOils = ref([])
 const loading = ref(false)
+const showPicker = ref(false)
 
 const ownedSet = computed(() => new Set(ownedOils.value))
 
-const filteredOilNames = computed(() => {
-  if (!searchQuery.value.trim()) return oils.oilNames
+const searchResults = computed(() => {
+  if (!searchQuery.value.trim()) return []
   const q = searchQuery.value.trim().toLowerCase()
-  return oils.oilNames.filter(n => n.toLowerCase().includes(q))
+  return oils.oilNames.filter(n => n.toLowerCase().includes(q)).slice(0, 15)
 })
 
+// Kit definitions
+const KITS = {
+  family: ['乳香', '茶树', '薰衣草', '柠檬', '椒样薄荷', '保卫', '牛至', '乐活', '顺畅呼吸', '舒缓'],
+  home3988: ['乳香', '野橘', '柠檬', '薰衣草', '椒样薄荷', '冬青', '茶树', '生姜', '柠檬草', '西班牙牛至',
+    '西洋蓍草石榴籽', '乐活', '保卫', '新瑞活力', '舒缓', '安定情绪', '安宁神气', '顺畅呼吸', '柑橘清新', '芳香调理', '元气焕能'],
+  aroma: ['芳香调理'],
+  full: ['侧柏', '乳香', '雪松', '芫荽', '丝柏', '圆柚', '红橘', '冬青', '没药', '扁柏', '檀香', '姜黄', '玫瑰',
+    '绿薄荷', '薰衣草', '永久花', '香蜂草', '迷迭香', '麦卢卡', '天竺葵', '蓝艾菊', '小茴香',
+    '古巴香脂', '依兰依兰', '丁香花蕾', '柠檬尤加利', '藿香', '西班牙牛至尾草',
+    '罗勒', '莱姆', '生姜', '柠檬', '茶树', '野橘', '香茅', '枫香',
+    '芹菜籽', '岩兰草', '苦橙叶', '柠檬草', '山鸡椒', '黑云杉',
+    '马郁兰', '佛手柑', '黑胡椒', '小豆蔻', '尤加利', '百里香',
+    '椒样薄荷', '杜松浆果', '加州白鼠尾草',
+    '快乐鼠尾草', '西伯利亚冷杉',
+    '西班牙牛至', '斯里兰卡肉桂']
+}
+
+function addKit(kitName) {
+  const kit = KITS[kitName]
+  if (!kit) return
+  let added = 0
+  for (const name of kit) {
+    // Match existing oil names (fuzzy)
+    const match = oils.oilNames.find(n => n === name) || oils.oilNames.find(n => n.includes(name) || name.includes(n))
+    if (match && !ownedOils.value.includes(match)) {
+      ownedOils.value.push(match)
+      added++
+    }
+  }
+  ownedOils.value.sort((a, b) => a.localeCompare(b, 'zh'))
+  saveInventory()
+  ui.showToast(`已添加 ${added} 种精油`)
+}
+
+function addFromSearch() {
+  if (searchResults.value.length > 0) {
+    addOil(searchResults.value[0])
+  }
+}
+
+function addOil(name) {
+  if (!ownedOils.value.includes(name)) {
+    ownedOils.value.push(name)
+    ownedOils.value.sort((a, b) => a.localeCompare(b, 'zh'))
+    saveInventory()
+  }
+  searchQuery.value = ''
+}
+
 const matchingRecipes = computed(() => {
   if (ownedOils.value.length === 0) return []
   return recipeStore.recipes
     .filter(r => {
-      const needed = r.ingredients.map(i => i.oil)
+      // Exclude coconut oil from matching
+      const needed = r.ingredients.filter(i => i.oil !== '椰子油').map(i => i.oil)
+      if (needed.length === 0) return false
       const coverage = needed.filter(o => ownedSet.value.has(o)).length
-      return coverage >= Math.ceil(needed.length * 0.5)
+      // Show if at least 1 oil matches
+      return coverage >= 1
     })
     .sort((a, b) => {
       const aCov = coverageRatio(a)
       const bCov = coverageRatio(b)
-      return bCov - aCov
+      if (bCov !== aCov) return bCov - aCov
+      return a.name.localeCompare(b.name, 'zh')
     })
 })
 
 function coverageRatio(recipe) {
-  const needed = recipe.ingredients.map(i => i.oil)
+  const needed = recipe.ingredients.filter(i => i.oil !== '椰子油').map(i => i.oil)
   if (needed.length === 0) return 0
   return needed.filter(o => ownedSet.value.has(o)).length / needed.length
 }
@@ -205,6 +277,27 @@ onMounted(() => {
   padding: 4px;
 }
 
+.search-results {
+  margin-bottom: 10px; max-height: 200px; overflow-y: auto;
+  border: 1.5px solid #e5e4e7; border-radius: 10px; background: #fff;
+}
+.search-result-item {
+  padding: 8px 12px; cursor: pointer; font-size: 13px; display: flex; align-items: center; gap: 6px;
+  border-bottom: 1px solid #f5f5f5;
+}
+.search-result-item:hover { background: #f0faf5; }
+.search-result-item:last-child { border-bottom: none; }
+
+.kit-bar { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 12px; }
+.kit-btn {
+  padding: 5px 12px; border: 1.5px solid #e5e4e7; border-radius: 20px; background: #fff;
+  font-size: 12px; cursor: pointer; font-family: inherit; color: #6b6375;
+}
+.kit-btn:hover { border-color: #7ec6a4; color: #4a9d7e; }
+
+.clickable { cursor: pointer; }
+.toggle-icon { font-size: 12px; color: #999; margin-left: auto; }
+
 .section-label {
   font-size: 12px;
   color: #b0aab5;