拆分系统监测模块并统一运维化文案

frontend/src/components/PermissionTrendCharts.vue

@@ -2,8 +2,8 @@
   <div class="trend-charts">
     <div class="trend-toolbar">
       <div class="toolbar-left">
-        <span class="toolbar-title">数据趋势</span>
-        <span class="toolbar-desc">查看权限系统各项指标的变化趋势</span>
+        <span class="toolbar-title">系统性能趋势</span>
+        <span class="toolbar-desc">查看系统运行监测指标的变化趋势</span>
       </div>
       <el-radio-group v-model="period" size="small" @change="loadData">
         <el-radio-button value="24h">24小时</el-radio-button>
@@ -18,7 +18,7 @@
           <div class="chart-icon blue">
             <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><polyline points="22 12 18 12 15 21 9 3 6 12 2 12"/></svg>
           </div>
-          <h4>检查量趋势</h4>
+          <h4>监测事件趋势</h4>
         </div>
         <v-chart :option="checksChartOption" autoresize class="chart" />
       </div>
@@ -45,7 +45,7 @@
           <div class="chart-icon danger">
             <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><circle cx="12" cy="12" r="10"/><line x1="4.93" y1="4.93" x2="19.07" y2="19.07"/></svg>
           </div>
-          <h4>拒绝率趋势</h4>
+          <h4>异常拒绝率趋势</h4>
         </div>
         <v-chart :option="denyRateOption" autoresize class="chart" />
       </div>
@@ -181,7 +181,7 @@ const denyRateOption = computed(() => ({
   yAxis: { type: "value", max: 100, name: "%", splitLine: { lineStyle: { color: "#f1f5f9" } }, axisLabel: { color: "#64748b" } },
   series: [
     {
-      name: "拒绝率",
+      name: "异常拒绝率",
       type: "line",
       smooth: true,
       symbol: "circle",