fix: 高级编辑直接添加公共库+编辑者权限精确控制

公共库添加:
- 高级编辑直接添加到公共库时owner_id设为admin，所有人可见
- 高级编辑添加不触发审核通知

精油价目权限:
- 编辑精油改为canManage（senior_editor+admin）
- editor只能编辑配方，不能编辑精油价目

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

frontend/src/views/OilReference.vue

@@ -98,15 +98,15 @@
         <button @click="viewMode = 'drop'" :style="viewMode === 'drop' ? 'background:var(--sage);color:white' : 'background:white;color:var(--text-mid)'" style="border:none;border-radius:0;font-size:12px;padding:6px 12px;cursor:pointer">每滴价</button>
       </div>
       <!-- Desktop: text buttons -->
-      <button v-if="auth.canEdit" class="toolbar-btn-text" @click="showAddForm = !showAddForm">{{ showAddForm ? '收起' : '＋ 新增' }}</button>
+      <button v-if="auth.canManage" class="toolbar-btn-text" @click="showAddForm = !showAddForm">{{ showAddForm ? '收起' : '＋ 新增' }}</button>
       <button v-if="auth.isAdmin" class="toolbar-btn-text" @click="exportPDF">📥 导出PDF</button>
       <!-- Mobile: emoji-only buttons -->
-      <button v-if="auth.canEdit" class="toolbar-btn-icon" @click="showAddForm = !showAddForm" title="新增精油">➕</button>
+      <button v-if="auth.canManage" class="toolbar-btn-icon" @click="showAddForm = !showAddForm" title="新增精油">➕</button>
       <button v-if="auth.isAdmin" class="toolbar-btn-icon" @click="exportPDF" title="导出PDF">📄</button>
     </div>
 
     <!-- Add Oil Form (toggleable) -->
-    <div v-if="showAddForm && auth.canEdit" class="add-oil-form">
+    <div v-if="showAddForm && auth.canManage" class="add-oil-form">
       <div class="form-row">
         <input v-model="newOilName" style="flex:1;min-width:120px" placeholder="精油名称" class="form-input-sm" />
         <input v-model="newOilEnName" style="flex:1;min-width:100px" placeholder="英文名" class="form-input-sm" />
@@ -152,7 +152,7 @@
             </div>
           </template>
         </div>
-        <div v-if="auth.canEdit" class="oil-chip-actions" @click.stop>
+        <div v-if="auth.canManage" class="oil-chip-actions" @click.stop>
           <button @click="editOil(name)" title="编辑">✏️</button>
           <button @click="removeOil(name)" title="删除">🗑</button>
         </div>