接入 ESLint 与 Prettier 并加入 CI 静态门禁

app/components/instance/CommonUpgrade.vue

@@ -632,6 +632,7 @@ function W(e, t) {
       return;
     (W(), (N.value = ``));
     let t = L,
+      // eslint-disable-next-line no-useless-assignment -- 边界一致性：保留 try 外 computed 求值及异常传播顺序。
       r = B.value;
     try {
       (G(), (t = L), (r = B.value));