fix(frontend): 修复 manualChunks 循环依赖导致生产白屏

仅拆分 codemirror/xterm/icons 独立库，避免 vendor-charts 与 vendor-react 循环引用。

backend/static/assets/region-DkjCXE-W.js

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