fix(k8s): Deployment 存储挂载六种卷类型 YAML 双向映射

- 抽取 deployment-volume-utils，修正 PVC/NFS/CM/Secret/HostPath/EmptyDir 读写
- 保存时保留系统卷与 serviceAccount 挂载，合并用户卷与挂载点
- 挂载支持 subPath；ConfigMap/Secret items 支持 key:path 简写

backend/static/assets/credential-BFQGM5tX.js

@@ -0,0 +1 @@
+import{h as t}from"./index-EF2TDvxx.js";const a={list:e=>t.get("/credentials",e),get:e=>t.get(`/credentials/${e}`),create:e=>t.post("/credentials",e),update:(e,s)=>t.put(`/credentials/${e}`,s),delete:e=>t.delete(`/credentials/${e}`),toggleActive:(e,s)=>t.put(`/credentials/${e}`,{is_active:s})},r={assign:(e,s)=>t.post(`/servers/${e}/assign-credential`,{credential_id:s})};export{a as c,r as s};