perf: optimize polling, stats cache, and frontend chunk splitting

static/admin/assets/system-In7Gh8x7.js

@@ -0,0 +1 @@
+import{a}from"./index-D8t2quK2.js";async function o(){const{data:t}=await a.get("/system/config");return t}async function e(t){const{data:n}=await a.post("/system/config",t);return n}export{o as f,e as u};