feat(dashboard): 添加首页地图展示功能

- 在 Dashboard 组件中集成锡林郭勒盟区域地图
- 实现地图数据接口和区域详情接口
- 添加地图交互功能，支持点击和悬停事件
- 更新开发计划和需求文档，增加地图展示功能

backend/api/server.js

@@ -41,6 +41,117 @@ app.get('/health', (req, res) => {
   });
 });
 
+// 大屏可视化地图数据接口
+app.get('/api/v1/dashboard/map/regions', (req, res) => {
+  // 模拟锡林郭勒盟各区域数据
+  const regions = [
+    {
+      id: 'xlg',
+      name: '锡林浩特市',
+      coordinates: [116.093, 43.946],
+      cattle_count: 25600,
+      farm_count: 120,
+      output_value: 650000000
+    },
+    {
+      id: 'dwq',
+      name: '东乌旗',
+      coordinates: [116.980, 45.514],
+      cattle_count: 18500,
+      farm_count: 95,
+      output_value: 480000000
+    },
+    {
+      id: 'xwq',
+      name: '西乌旗',
+      coordinates: [117.615, 44.587],
+      cattle_count: 21200,
+      farm_count: 108,
+      output_value: 520000000
+    },
+    {
+      id: 'abg',
+      name: '阿巴嘎旗',
+      coordinates: [114.971, 44.022],
+      cattle_count: 16800,
+      farm_count: 86,
+      output_value: 420000000
+    },
+    {
+      id: 'snz',
+      name: '苏尼特左旗',
+      coordinates: [113.653, 43.859],
+      cattle_count: 12400,
+      farm_count: 65,
+      output_value: 310000000
+    }
+  ];
+
+  res.json({ regions });
+});
+
+app.get('/api/v1/dashboard/map/region/:regionId', (req, res) => {
+  const { regionId } = req.params;
+  
+  // 模拟各区域详细数据
+  const regionDetails = {
+    'xlg': {
+      region: {
+        id: 'xlg',
+        name: '锡林浩特市',
+        coordinates: [116.093, 43.946],
+        cattle_count: 25600,
+        farm_count: 120,
+        output_value: 650000000,
+        trend: 'up'
+      },
+      farms: [
+        {
+          id: 'FARM001',
+          name: '锡林浩特市第一牧场',
+          coordinates: [116.120, 43.950],
+          cattle_count: 2450,
+          output_value: 62000000
+        },
+        {
+          id: 'FARM002',
+          name: '锡林浩特市第二牧场',
+          coordinates: [116.080, 43.930],
+          cattle_count: 2100,
+          output_value: 53000000
+        }
+      ]
+    },
+    'dwq': {
+      region: {
+        id: 'dwq',
+        name: '东乌旗',
+        coordinates: [116.980, 45.514],
+        cattle_count: 18500,
+        farm_count: 95,
+        output_value: 480000000,
+        trend: 'up'
+      },
+      farms: [
+        {
+          id: 'FARM003',
+          name: '东乌旗牧场A',
+          coordinates: [116.990, 45.520],
+          cattle_count: 1950,
+          output_value: 49000000
+        }
+      ]
+    }
+  };
+
+  const detail = regionDetails[regionId];
+  if (detail) {
+    res.json(detail);
+  } else {
+    res.status(404).json({ error: '区域未找到' });
+  }
+});
+
 // 启动服务器
 app.listen(PORT, () => {
   console.log(`API服务器正在端口 ${PORT} 上运行`);