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/dashboard-Bvsa0TzO.js

@@ -0,0 +1 @@
+import{h as t}from"./index-BZzvNKfa.js";const a={getStats:async()=>t.get("/dashboard/stats"),getAlerts:async e=>t.get("/dashboard/recent-alerts",e?{limit:e}:void 0),getReleases:async e=>t.get("/dashboard/recent-releases",e?{limit:e}:void 0),getMetrics:async e=>t.get("/dashboard/metrics",e?{hours:e}:void 0)};export{a as d};