feat: 实现供水运营专题大屏BI可视化

- 新增OperationDashboard.vue全屏大屏组件
- 添加6个核心KPI指标卡片: 进水总量/出水总量/产销差率/营收额/平均水质/报警次数
- 实现6个ECharts图表: 供水趋势/水质分布/报警统计/管网空间/设备状态/营收分析
- 创建静态HTML版本operation-dashboard.html，使用CDN加载Vue3/ECharts/Element Plus
- 更新路由配置，添加/operation路径支持
- 修复nextTick导入问题，优化build脚本

🚧 开发者: bot_dev1
📝 任务: #38 [BI] 运营仪表盘 + 供水专题大屏

frontend/node_modules/zrender/lib/graphic/shape/Isogon.js

@@ -0,0 +1,45 @@
+import { __extends } from "tslib";
+import Path from '../Path.js';
+var PI = Math.PI;
+var sin = Math.sin;
+var cos = Math.cos;
+var IsogonShape = (function () {
+    function IsogonShape() {
+        this.x = 0;
+        this.y = 0;
+        this.r = 0;
+        this.n = 0;
+    }
+    return IsogonShape;
+}());
+export { IsogonShape };
+var Isogon = (function (_super) {
+    __extends(Isogon, _super);
+    function Isogon(opts) {
+        return _super.call(this, opts) || this;
+    }
+    Isogon.prototype.getDefaultShape = function () {
+        return new IsogonShape();
+    };
+    Isogon.prototype.buildPath = function (ctx, shape) {
+        var n = shape.n;
+        if (!n || n < 2) {
+            return;
+        }
+        var x = shape.x;
+        var y = shape.y;
+        var r = shape.r;
+        var dStep = 2 * PI / n;
+        var deg = -PI / 2;
+        ctx.moveTo(x + r * cos(deg), y + r * sin(deg));
+        for (var i = 0, end = n - 1; i < end; i++) {
+            deg += dStep;
+            ctx.lineTo(x + r * cos(deg), y + r * sin(deg));
+        }
+        ctx.closePath();
+        return;
+    };
+    return Isogon;
+}(Path));
+Isogon.prototype.type = 'isogon';
+export default Isogon;