UI: 批量操作改为展开菜单，各区域独立全选

- 批量操作改为按钮点击展开菜单（打标签/导出卡片/共享/删除）
- 共享到公共库仅在全选我的配方且未选公共配方时显示
- 我的配方和公共配方库各有独立的✓全选按钮
- 两个区域都全选后，顶部全选按钮激活

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

frontend/src/views/RecipeManager.vue

@@ -29,25 +29,25 @@
       <button v-if="auth.canEdit" class="btn-outline btn-sm" @click="showAddOverlay = true">新增</button>
       <button
         class="btn-sm"
-        :class="totalSelected > 0 ? 'btn-select-active' : 'btn-outline'"
-        @click="toggleSelectAllDiary"
+        :class="isAllSelected ? 'btn-select-active' : 'btn-outline'"
+        @click="toggleSelectAll"
       >全选</button>
       <span v-if="totalSelected > 0" class="select-count">共{{ totalSelected }}个</span>
       <button class="tag-toggle-btn" @click="showTagFilter = !showTagFilter">
         标签 {{ showTagFilter ? '▾' : '▸' }}
       </button>
-      <!-- Batch -->
-      <template v-if="totalSelected > 0">
-        <select v-model="batchAction" class="batch-select" @change="onBatchSelect">
-          <option value="">批量操作...</option>
-          <option value="tag">打标签</option>
-          <option v-if="selectedDiaryIds.size > 0" value="share_public">分享到公共库</option>
-          <option value="delete">删除</option>
-        </select>
-        <button class="btn-sm btn-outline" @click="clearSelection">取消</button>
-      </template>
+      <button v-if="totalSelected > 0" class="tag-toggle-btn" @click="showBatchMenu = !showBatchMenu">
+        批量操作 {{ showBatchMenu ? '▾' : '▸' }}
+      </button>
+      <button v-if="totalSelected > 0" class="btn-sm btn-outline" @click="clearSelection">取消</button>
       <button v-if="auth.isAdmin" class="export-btn" @click="exportExcel" title="导出Excel">📥</button>
     </div>
+    <div v-if="showBatchMenu && totalSelected > 0" class="batch-menu">
+      <button class="batch-menu-btn" @click="executeBatchAction('tag')">🏷 批量打标签</button>
+      <button class="batch-menu-btn" @click="executeBatchAction('export')">📷 批量导出卡片</button>
+      <button v-if="selectedDiaryIds.size > 0 && selectedIds.size === 0" class="batch-menu-btn" @click="executeBatchAction('share_public')">📤 批量共享到公共库</button>
+      <button class="batch-menu-btn batch-delete" @click="executeBatchAction('delete')">🗑 批量删除</button>
+    </div>
     <div v-if="showTagFilter" class="tag-list-bar">
       <span
         v-for="tag in recipeStore.allTags"
@@ -65,6 +65,7 @@
     <!-- My Recipes Section (from diary) -->
     <div class="recipe-section">
       <h3 class="section-title clickable" @click="showMyRecipes = !showMyRecipes">
+        <button class="mini-select" :class="{ active: isMyAllSelected }" @click.stop="toggleMySelect">✓</button>
         <span>📖 我的配方 ({{ myRecipes.length }})</span>
         <span v-if="!auth.isAdmin" class="contrib-tag">已贡献 {{ sharedCount.adopted }}/{{ sharedCount.total }} 条</span>
         <span class="toggle-icon">{{ showMyRecipes ? '▾' : '▸' }}</span>
@@ -107,6 +108,7 @@
     <!-- Public Recipes Section (editor+) -->
     <div v-if="auth.canEdit" class="recipe-section">
       <h3 class="section-title clickable" @click="showPublicRecipes = !showPublicRecipes">
+        <button class="mini-select" :class="{ active: isPubAllSelected }" @click.stop="togglePubSelect">✓</button>
         <span>🌿 公共配方库 ({{ publicRecipes.length }})</span>
         <span class="toggle-icon">{{ showPublicRecipes ? '▾' : '▸' }}</span>
       </h3>
@@ -541,29 +543,35 @@ function toggleDiarySelect(id) {
 function clearSelection() {
   selectedIds.clear()
   selectedDiaryIds.clear()
-  batchAction.value = ''
+  showBatchMenu.value = false
 }
 
-function onBatchSelect() {
-  if (batchAction.value) {
-    executeBatchAction(batchAction.value)
-    batchAction.value = ''
+function toggleSelectAll() {
+  if (isAllSelected.value) {
+    clearSelection()
+  } else {
+    myFilteredRecipes.value.forEach(d => selectedDiaryIds.add(d.id))
+    if (auth.canEdit) publicFilteredRecipes.value.forEach(r => selectedIds.add(r._id))
+    showMyRecipes.value = true
+    if (auth.canEdit) showPublicRecipes.value = true
   }
 }
 
-function toggleSelectAllDiary() {
-  if (selectedDiaryIds.size > 0 || selectedIds.size > 0) {
-    // Any selected → deselect all
+function toggleMySelect() {
+  if (isMyAllSelected.value) {
     selectedDiaryIds.clear()
+  } else {
+    myFilteredRecipes.value.forEach(d => selectedDiaryIds.add(d.id))
+    showMyRecipes.value = true
+  }
+}
+
+function togglePubSelect() {
+  if (isPubAllSelected.value) {
     selectedIds.clear()
   } else {
-    // Select all
-    myFilteredRecipes.value.forEach(d => selectedDiaryIds.add(d.id))
-    if (auth.canEdit) {
-      publicFilteredRecipes.value.forEach(r => selectedIds.add(r._id))
-    }
-    showMyRecipes.value = true
-    if (auth.canEdit) showPublicRecipes.value = true
+    publicFilteredRecipes.value.forEach(r => selectedIds.add(r._id))
+    showPublicRecipes.value = true
   }
 }
 
@@ -958,8 +966,11 @@ async function saveAllParsed() {
 
 const sharedCount = ref({ adopted: 0, total: 0 })
 const previewRecipeIndex = ref(null)
-const batchAction = ref('')
+const showBatchMenu = ref(false)
 const totalSelected = computed(() => selectedIds.size + selectedDiaryIds.size)
+const isMyAllSelected = computed(() => myFilteredRecipes.value.length > 0 && selectedDiaryIds.size === myFilteredRecipes.value.length)
+const isPubAllSelected = computed(() => publicFilteredRecipes.value.length > 0 && selectedIds.size === publicFilteredRecipes.value.length)
+const isAllSelected = computed(() => isMyAllSelected.value && (!auth.canEdit || isPubAllSelected.value))
 const showMyRecipes = ref(false)
 const showPublicRecipes = ref(false)
 const showReviewHistory = ref(false)
@@ -1609,6 +1620,23 @@ watch(() => recipeStore.recipes, () => {
   display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin-bottom: 8px;
 }
 .select-count { font-size: 12px; color: #4a9d7e; font-weight: 500; white-space: nowrap; }
+.batch-menu {
+  display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 8px; padding: 8px 0;
+}
+.batch-menu-btn {
+  padding: 5px 12px; border: 1.5px solid #e5e4e7; border-radius: 8px; background: #fff;
+  font-size: 12px; cursor: pointer; font-family: inherit; color: #6b6375;
+}
+.batch-menu-btn:hover { border-color: #7ec6a4; color: #4a9d7e; }
+.batch-delete { color: #c0392b; border-color: #e8b4b0; }
+.batch-delete:hover { background: #fdf0ee; border-color: #c0392b; }
+.mini-select {
+  width: 20px; height: 20px; border: 1.5px solid #d4cfc7; border-radius: 4px;
+  background: #fff; color: transparent; font-size: 12px; cursor: pointer;
+  display: inline-flex; align-items: center; justify-content: center; flex-shrink: 0;
+  margin-right: 4px;
+}
+.mini-select.active { background: #4a9d7e; border-color: #4a9d7e; color: #fff; }
 .tag-list-bar {
   display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 10px; padding: 8px 0;
 }