处理监听图表的函数，确保及时移除&生产环境不打印log

src/views/home/fullCostAnalysisComponents/electricityGauge.vue

@@ -154,6 +154,18 @@ export default {
     },
     // 未使用的蒸汽仪表盘可注释/删除
     // getSteamGaugeOption(value) { ... }
+  },
+  beforeDestroy() {
+    // 销毁 ResizeObserver，避免内存泄漏
+    if (this.resizeObserver) {
+      this.resizeObserver.disconnect();
+      this.resizeObserver = null;
+    }
+    // 销毁图表实例
+    if (this.electricityChart) {
+      this.electricityChart.dispose();
+      this.electricityChart = null;
+    }
   }
 }
 </script>