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/element-plus/lib/components/popover/index.js

@@ -0,0 +1,20 @@
+Object.defineProperties(exports, {
+	__esModule: { value: true },
+	[Symbol.toStringTag]: { value: "Module" }
+});
+const require_install = require("../../utils/vue/install.js");
+const require_popover = require("./src/popover.js");
+const require_popover$1 = require("./src/popover2.js");
+const require_directive = require("./src/directive.js");
+//#region ../../packages/components/popover/index.ts
+const ElPopoverDirective = require_install.withInstallDirective(require_directive.default, require_directive.VPopover);
+const ElPopover = require_install.withInstall(require_popover$1.default, { directive: ElPopoverDirective });
+//#endregion
+exports.ElPopover = ElPopover;
+exports.default = ElPopover;
+exports.ElPopoverDirective = ElPopoverDirective;
+exports.popoverEmits = require_popover.popoverEmits;
+exports.popoverProps = require_popover.popoverProps;
+exports.popoverPropsDefaults = require_popover.popoverPropsDefaults;
+
+//# sourceMappingURL=index.js.map