feat: 地图列表批量删除 — checkbox多选+POST batch-delete API

frontend/src/views/MapList.vue

@@ -2,9 +2,13 @@
   <div>
     <div style="display:flex;justify-content:space-between;margin-bottom:16px;">
       <h3>战略地图</h3>
-      <el-button type="primary" @click="showForm=true;form={}">新建地图</el-button>
+      <div>
+        <el-button type="danger" size="small" :disabled="selectedIds.length === 0" @click="batchDelete">批量删除（{{ selectedIds.length }}）</el-button>
+        <el-button type="primary" @click="showForm=true;form={}">新建地图</el-button>
+      </div>
     </div>
-    <el-table :data="maps" style="width:100%">
+    <el-table :data="maps" style="width:100%" @selection-change="onSelectionChange">
+      <el-table-column type="selection" width="40" />
       <el-table-column prop="title" label="地图名称" min-width="200" />
       <el-table-column prop="version" label="版本" width="80" />
       <el-table-column prop="status" label="状态" width="80">
@@ -66,6 +70,24 @@ const showForm = ref(false)
 const editingMap = ref<any>(null)
 const form = ref<any>({})
 const createMode = ref("blank")
+const selectedIds = ref<number[]>([])
+
+function onSelectionChange(rows: any[]) {
+  selectedIds.value = rows.map(r => r.id)
+}
+
+async function batchDelete() {
+  if (selectedIds.value.length === 0) return
+  try {
+    await ElMessageBox.confirm(`确定删除选中的 ${selectedIds.value.length} 个地图？`, "批量删除")
+    await mapApi.batchDelete(selectedIds.value)
+    ElMessage.success(`已删除 ${selectedIds.value.length} 个地图`)
+    selectedIds.value = []
+    load()
+  } catch (e: any) {
+    if (e !== "cancel") ElMessage.error("批量删除失败")
+  }
+}
 
 async function load() {
   try { const r: any = await mapApi.list(); maps.value = r.data || [] } catch (e) {}