修复首页地图显示问题和版本管理页面错误

frontend/src/components/data-table/bulk-actions.vue

@@ -15,7 +15,7 @@ interface BulkActionsProps<T> {
 
 const { table, entityName: _entityName } = defineProps<BulkActionsProps<T>>()
 
-const selectedRows = computed(() => table.getSelectedRowModel().rows)
+const selectedRows = computed(() => table.getSelectedRowModel().rows || [])
 const selectedCount = computed(() => selectedRows.value.length || 0)
 
 function handleClearSelection() {

frontend/src/components/data-table/data-table.vue

@@ -40,7 +40,7 @@ function getCommonPinningStyles(column: Column<T>): CSSProperties {
 
 <template>
   <div class="space-y-4">
-    <slot name="toolbar" :selected-count="table.getSelectedRowModel().rows.length" />
+    <slot name="toolbar" :selected-count="table.getSelectedRowModel().rows?.length || 0" />
     <slot name="filters" />
     <div class="border rounded-md">
       <Table>

frontend/src/components/data-table/table-pagination.vue

@@ -58,7 +58,7 @@ const canNextPage = computed(() => {
   return props.table.getCanNextPage()
 })
 
-const selectedCount = computed(() => props.table.getSelectedRowModel().rows.length)
+const selectedCount = computed(() => props.table.getSelectedRowModel().rows?.length || 0)
 
 const jumpPage = ref<string>('')
 const isEditingPage = ref(false)

frontend/src/pages/admin/versions/create.vue

@@ -477,7 +477,7 @@ watch(() => formData.value.application_id, (newAppId) => {
                     <UiSelectValue :placeholder="t('admin.versions.createForm.baseVersionPlaceholder')" />
                   </UiSelectTrigger>
                   <UiSelectContent>
-                    <UiSelectItem value="">
+                    <UiSelectItem value="__none__">
                       {{ t('admin.versions.createForm.noBaseVersion') }}
                     </UiSelectItem>
                     <UiSelectItem

frontend/src/pages/admin/versions/index.vue

@@ -260,7 +260,7 @@ watch([appFilter, strategyFilter, methodFilter, searchFilter], () => {
           </UiCardHeader>
           <UiCardContent>
             <div class="text-2xl font-bold">
-              {{ filteredVersions.length }}
+              {{ versions.length }}
             </div>
           </UiCardContent>
         </UiCard>
@@ -302,7 +302,7 @@ watch([appFilter, strategyFilter, methodFilter, searchFilter], () => {
           </UiCardHeader>
           <UiCardContent>
             <div class="text-2xl font-bold">
-              {{ new Set(filteredVersions.map(v => v.application_id)).size }}
+              {{ new Set(versions.map(v => v.application_id)).size }}
             </div>
           </UiCardContent>
         </UiCard>