隐藏“近七日”活跃；共用同一个y轴；

src/views/PlatformData/UserActivityStats.vue

@@ -23,7 +23,7 @@
         <div class="filter-right">
           <el-button-group>
             <el-button :type="chartMode === 'day' ? 'danger' : 'default'" @click="handleModeChange('day')">每日</el-button>
-            <el-button :type="chartMode === 'week' ? 'danger' : 'default'" @click="handleModeChange('week')">近七日</el-button>
+            <!-- <el-button :type="chartMode === 'week' ? 'danger' : 'default'" @click="handleModeChange('week')">近七日</el-button> -->
             <el-button :type="chartMode === 'month' ? 'danger' : 'default'" @click="handleModeChange('month')">近三十日</el-button>
           </el-button-group>
         </div>
@@ -282,25 +282,15 @@ const updateChart = (data) => {
         boundaryGap: false,
         data: dates
       },
-      yAxis: [
-        {
-          type: 'value',
-          min: 0,
-          position: 'left',
-          axisLabel: { formatter: '{value}' }
-        },
-        {
-          type: 'value',
-          min: 0,
-          position: 'right',
-          axisLabel: { formatter: '{value}' }
-        }
-      ],
+      yAxis: {
+        type: 'value',
+        min: 0,
+        axisLabel: { formatter: '{value}' }
+      },
       series: [
         {
           name: 'DeepChart活跃人数',
           type: 'line',
-          yAxisIndex: 0,
           data: activeUsers,
           itemStyle: { color: '#e74c3c' },
           symbol: 'circle',
@@ -310,7 +300,6 @@ const updateChart = (data) => {
         {
           name: 'DeepChart使用次数',
           type: 'line',
-          yAxisIndex: 1,
           data: useCounts,
           itemStyle: { color: '#2ecc71' },
           symbol: 'circle',