新增对象存储/账单/保留IP页面,成本今天视图与样式收敛

src/components/instance/CreateInstanceModal.vue

@@ -44,6 +44,11 @@ const canSubmit = computed(
 
 async function submit() {
   if (props.cfgId === null || !specForm.value) return
+  const spec = specForm.value.buildSpec()
+  if (spec.reservedPublicIpId && form.count > 1) {
+    message.warning('保留 IP 仅支持单台创建,请把数量改为 1')
+    return
+  }
   submitting.value = true
   try {
     const result = await createInstances(props.cfgId, {
@@ -51,7 +56,7 @@ async function submit() {
       compartmentId: props.compartmentId || undefined,
       displayName: form.displayName.trim(),
       count: form.count,
-      ...specForm.value.buildSpec(),
+      ...spec,
     })
     // 后端 errors / instances 为空时序列化为 null，判空防炸
     const ok = result.instances?.length ?? 0