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/platform-C7N_g8dz.js

@@ -0,0 +1 @@
+import{h as r}from"./index-EF2TDvxx.js";const p={list:async()=>r.get("/platforms"),create:async t=>r.post("/platforms",t),update:async(t,e)=>r.put(`/platforms/${t}`,e),delete:async t=>r.delete(`/platforms/${t}`)};export{p};