UI: 批量操作展开菜单+区域独立全选（保持原布局）

- 批量操作改为按钮展开下一行菜单（打标签/导出卡片/共享/删除）
- 共享仅在只选了我的配方时显示
- 我的配方和公共配方库标题加✓小全选按钮
- 两个都全选后顶部全选按钮激活
- 保持原有工具栏布局不变

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

frontend/src/views/RecipeManager.vue

@@ -36,18 +36,15 @@
       <button class="tag-toggle-btn" @click="showTagFilter = !showTagFilter">
         标签 {{ showTagFilter ? '▾' : '▸' }}
       </button>
-      <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>
+      <!-- Batch -->
+      <template v-if="totalSelected > 0">
+        <button class="tag-toggle-btn" @click="showBatchMenu = !showBatchMenu">
+          批量操作 {{ showBatchMenu ? '▾' : '▸' }}
+        </button>
+        <button class="btn-sm btn-outline" @click="clearSelection">取消</button>
+      </template>
       <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"
@@ -62,10 +59,17 @@
       </div>
     </div>
 
+    <div v-if="showBatchMenu && totalSelected > 0" class="batch-menu">
+      <button class="batch-menu-btn" @click="doBatch('tag')">🏷 批量打标签</button>
+      <button class="batch-menu-btn" @click="doBatch('export')">📷 批量导出卡片</button>
+      <button v-if="selectedDiaryIds.size > 0 && selectedIds.size === 0" class="batch-menu-btn" @click="doBatch('share_public')">📤 批量共享到公共库</button>
+      <button class="batch-menu-btn batch-delete" @click="doBatch('delete')">🗑 批量删除</button>
+    </div>
+
     <!-- 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>
+        <button class="mini-select" :class="{ active: isMyAllSelected }" @click.stop="toggleMySelect" title="全选我的配方">✓</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>
@@ -108,7 +112,7 @@
     <!-- 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>
+        <button class="mini-select" :class="{ active: isPubAllSelected }" @click.stop="togglePubSelect" title="全选公共配方">✓</button>
         <span>🌿 公共配方库 ({{ publicRecipes.length }})</span>
         <span class="toggle-icon">{{ showPublicRecipes ? '▾' : '▸' }}</span>
       </h3>
@@ -546,6 +550,11 @@ function clearSelection() {
   showBatchMenu.value = false
 }
 
+function doBatch(action) {
+  showBatchMenu.value = false
+  executeBatchAction(action)
+}
+
 function toggleSelectAll() {
   if (isAllSelected.value) {
     clearSelection()
@@ -970,7 +979,11 @@ 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 isAllSelected = computed(() => {
+  const myOk = myFilteredRecipes.value.length > 0 && isMyAllSelected.value
+  const pubOk = !auth.canEdit || (publicFilteredRecipes.value.length > 0 && isPubAllSelected.value)
+  return myOk && pubOk
+})
 const showMyRecipes = ref(false)
 const showPublicRecipes = ref(false)
 const showReviewHistory = ref(false)
@@ -1620,9 +1633,7 @@ 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 { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 8px; }
 .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;
@@ -1631,10 +1642,10 @@ watch(() => recipeStore.recipes, () => {
 .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;
+  width: 18px; height: 18px; border: 1.5px solid #d4cfc7; border-radius: 4px;
+  background: #fff; color: transparent; font-size: 11px; cursor: pointer;
   display: inline-flex; align-items: center; justify-content: center; flex-shrink: 0;
-  margin-right: 4px;
+  padding: 0; margin-right: 4px; line-height: 1;
 }
 .mini-select.active { background: #4a9d7e; border-color: #4a9d7e; color: #fff; }
 .tag-list-bar {