refactor: Dashboard 看板布局与图表优化

DashboardView 调整看板卡片与栅格展示，ECharts 补充图表类型，主布局 dashboard 区域由内嵌滚动改为自适应可滚动以避免内容被裁剪，回归脚本适配。

frontend/scripts/regression-dashboard.mjs

@@ -19,6 +19,8 @@ assert.match(
 
 assert.match(echartsSource, /import\s*\{[^}]*BarChart[^}]*\}\s*from\s*['"]echarts\/charts['"]/, 'ECharts 未注册 BarChart')
 assert.match(echartsSource, /use\(\[[\s\S]*?BarChart[\s\S]*?\]\)/, 'BarChart 未加入 ECharts 按需注册列表')
+assert.match(echartsSource, /import\s*\{[^}]*PieChart[^}]*\}\s*from\s*['"]echarts\/charts['"]/, 'ECharts 未注册 PieChart')
+assert.match(echartsSource, /use\(\[[\s\S]*?PieChart[\s\S]*?\]\)/, 'PieChart 未加入 ECharts 按需注册列表')
 
 for (const copy of [
   '平台运行状态',
@@ -39,16 +41,24 @@ assert.match(dashboardSource, /router\.push\(['"]\/fine-tune['"]\)/, '查看全
 assert.match(dashboardSource, /router\.push\(`\/training-log\/\$\{task\.id\}`\)/, '训练任务详情应进入训练日志页')
 assert.doesNotMatch(dashboardSource, /class=["']dashboard-heading["']/, '服务看板不应重复展示页面标题栏')
 assert.doesNotMatch(dashboardSource, /查看告警/, '服务看板不应保留冗余的顶部告警按钮')
-assert.match(dashboardSource, /\.dashboard-view\s*\{[\s\S]*?gap:\s*10px;/, '服务看板应使用紧凑的区块间距')
+assert.match(dashboardSource, /\.dashboard-view\s*\{[\s\S]*?gap:\s*16px;/, '服务看板区块间距应保持舒展')
-assert.match(dashboardSource, /\.dashboard-middle\s*\{[\s\S]*?flex:\s*1 1 auto;[\s\S]*?min-height:\s*0;/, '中间区域应弹性占满剩余高度')
+assert.match(dashboardSource, /\.dashboard-view\s*\{[\s\S]*?min-height:\s*100%;/, '服务看板应至少填满页面可用高度')
+assert.match(dashboardSource, /\.dashboard-middle\s*\{[\s\S]*?flex:\s*0 0 auto;[\s\S]*?min-height:\s*0;/, '中间区域不应因新增统计卡片被压缩')
 assert.match(dashboardSource, /grid-template-columns:\s*minmax\(0,\s*1\.9fr\)\s*minmax\(300px,\s*0\.82fr\);/, '服务状态列应收窄，为训练图表释放更多宽度')
-assert.match(dashboardSource, /\.training-chart\s*\{[\s\S]*?flex:\s*1 1 auto;[\s\S]*?height:\s*auto;[\s\S]*?min-height:\s*230px;/, '训练统计图应随可用空间自动拉伸')
+assert.match(dashboardSource, /\.training-chart\s*\{[\s\S]*?height:\s*300px;[\s\S]*?min-height:\s*300px;/, '训练统计图应保持舒展、稳定的展示高度')
-assert.match(dashboardSource, /@media\s*\(max-height:\s*900px\)[\s\S]*?\.training-chart\s*\{[\s\S]*?min-height:\s*200px;/, '较矮桌面视口应保留图表最小可读高度')
 assert.match(dashboardSource, /\.service-table\s*\{[\s\S]*?grid-template-rows:[^;]*repeat\(4,\s*minmax\(48px,\s*1fr\)\)/, '服务状态行应随中间区域同步拉伸')
 assert.match(dashboardSource, /\.tasks-heading\s*\{[\s\S]*?min-height:\s*32px;[\s\S]*?padding:\s*0 14px 10px;/, '训练任务标题区应适当加高')
 assert.match(dashboardSource, /\.tasks-table\s*\{[\s\S]*?th,\s*td\s*\{[\s\S]*?height:\s*42px;[\s\S]*?th\s*\{[\s\S]*?height:\s*36px;/, '训练任务表格行应适当加高')
 assert.match(dashboardSource, /@media\s*\(max-height:\s*900px\)[\s\S]*?\.tasks-heading\s*\{[\s\S]*?min-height:\s*28px;[\s\S]*?padding:\s*0 12px 8px;[\s\S]*?\.tasks-table\s*\{[\s\S]*?height:\s*36px;[\s\S]*?th\s*\{[\s\S]*?height:\s*32px;/, '低高度桌面视口也应提高训练任务占比')
-assert.match(mainLayoutSource, /\.layout-content:has\(\.dashboard-view\)[\s\S]*?overflow-y:\s*hidden;/, '服务看板容器应避免产生页面纵向滚动条')
+assert.match(dashboardSource, /class=["']user-stats-row["'][\s\S]*?用户操作分布[\s\S]*?登录时长排行[\s\S]*?最近登录用户/, '服务看板应展示三块用户统计卡片')
-assert.match(mainLayoutSource, /\.page-canvas\s*\{[\s\S]*?flex:\s*1 1 auto;[\s\S]*?overflow:\s*hidden;/, '服务看板页面画布应约束在可用视口内')
+assert.match(dashboardSource, /class=["']duration-chart["'][\s\S]*?loginDurationChartOption/, '登录时长应使用 ECharts 图表展示')
+assert.match(dashboardSource, /const loginDurationChartOption[\s\S]*?type:\s*['"]bar['"][\s\S]*?formatter:\s*['"]\{c\} 小时['"]/, '登录时长应以横向柱状图展示具体小时数')
+assert.match(dashboardSource, /const operationChartOption[\s\S]*?position:\s*['"]outside['"][\s\S]*?labelLine:\s*\{[\s\S]*?show:\s*true/, '饼图应以外侧引导线标注操作名称')
+assert.match(dashboardSource, /const loginDurationChartOption[\s\S]*?grid:\s*\{\s*top:\s*8,\s*right:\s*12,\s*bottom:\s*6,\s*left:\s*8,[\s\S]*?max:\s*Math\.ceil\(Math\.max[\s\S]*?position:\s*['"]insideRight['"]/, '登录时长图应收紧左右边距、按数据范围拉伸，并将数值置于柱内')
+assert.match(dashboardSource, /\.user-stats-row\s*\{[\s\S]*?repeat\(3,\s*minmax\(0,\s*1fr\)\)/, '宽屏用户统计卡片应保持三列')
+assert.match(dashboardSource, /@media\s*\(max-width:\s*1180px\)[\s\S]*?\.user-stats-row\s*\{[\s\S]*?repeat\(2,\s*minmax\(0,\s*1fr\)\)/, '中等宽度应将用户统计卡片降为两列')
+assert.match(dashboardSource, /@media\s*\(max-width:\s*720px\)[\s\S]*?\.user-stats-row\s*\{[\s\S]*?grid-template-columns:\s*1fr;/, '窄屏应将用户统计卡片降为单列')
+assert.match(mainLayoutSource, /\.layout-content:has\(\.dashboard-view\)[\s\S]*?overflow-y:\s*auto;/, '服务看板应允许在内容超出视口时纵向滚动')
+assert.match(mainLayoutSource, /\.page-canvas\s*\{[\s\S]*?flex:\s*1 0 auto;[\s\S]*?overflow:\s*visible;/, '服务看板画布应允许新增卡片完整显示')
 
 console.log('服务看板回归检查通过')

frontend/src/layouts/MainLayout.vue

@@ -84,13 +84,13 @@ onUnmounted(() => {
 
 @media (min-width: 1181px) {
   .layout-content:has(.dashboard-view) {
-    overflow-y: hidden;
+    overflow-y: auto;
 
     .page-canvas {
-      flex: 1 1 auto;
+      flex: 1 0 auto;
       min-height: 0;
       padding: 16px;
-      overflow: hidden;
+      overflow: visible;
     }
   }
 }

frontend/src/plugins/echarts.ts

@@ -4,7 +4,7 @@
  */
 import { use } from 'echarts/core'
 import { CanvasRenderer } from 'echarts/renderers'
-import { BarChart, LineChart } from 'echarts/charts'
+import { BarChart, LineChart, PieChart } from 'echarts/charts'
 import {
   GridComponent,
   TooltipComponent,
@@ -17,6 +17,7 @@ use([
   CanvasRenderer,
   BarChart,
   LineChart,
+  PieChart,
   GridComponent,
   TooltipComponent,
   LegendComponent,

frontend/src/views/dashboard/DashboardView.vue

@@ -25,6 +25,19 @@ interface DashboardTask {
   startedAt: string
 }
 
+interface LoginDurationStat {
+  id: number
+  username: string
+  duration: number
+}
+
+interface RecentLoginUser {
+  id: number
+  username: string
+  role: string
+  lastLogin: string
+}
+
 const router = useRouter()
 const period = ref('7d')
 
@@ -185,6 +198,110 @@ const chartOption = computed<EChartsOption>(() => ({
   ],
 }))
 
+const operationChartOption = computed<EChartsOption>(() => ({
+  animationDuration: 500,
+  tooltip: { trigger: 'item' },
+  color: ['#4f46e5', '#10b981', '#f59e0b', '#3b82f6', '#ec4899'],
+  series: [
+    {
+      name: '操作分类',
+      type: 'pie',
+      radius: ['40%', '64%'],
+      center: ['50%', '50%'],
+      avoidLabelOverlap: true,
+      itemStyle: {
+        borderRadius: 6,
+        borderColor: '#fff',
+        borderWidth: 2
+      },
+      label: {
+        show: true,
+        position: 'outside',
+        formatter: '{b}',
+        color: '#475569',
+        fontSize: 11,
+        lineHeight: 16,
+        width: 70,
+        overflow: 'truncate',
+      },
+      emphasis: {
+        label: { show: true, fontSize: 12, fontWeight: 'bold', color: '#1e293b' }
+      },
+      labelLine: {
+        show: true,
+        length: 10,
+        length2: 8,
+        lineStyle: { color: '#94a3b8', width: 1 },
+      },
+      data: [
+        { value: 1048, name: '模型训练' },
+        { value: 735, name: '数据处理' },
+        { value: 580, name: '模型评测' },
+        { value: 484, name: '模型推理' },
+        { value: 300, name: '系统设置' }
+      ]
+    }
+  ]
+}))
+
+const loginDurationStats: LoginDurationStat[] = [
+  { id: 1, username: 'admin', duration: 124 },
+  { id: 2, username: 'zhangsan', duration: 86 },
+  { id: 3, username: 'lisi', duration: 42 },
+  { id: 4, username: 'wangwu', duration: 18 },
+]
+
+const loginDurationChartOption = computed<EChartsOption>(() => ({
+  animationDuration: 500,
+  grid: { top: 8, right: 40, bottom: 6, left: 8, containLabel: true },
+  tooltip: {
+    trigger: 'axis',
+    axisPointer: { type: 'shadow' },
+    valueFormatter: (value) => `${value} 小时`,
+  },
+  xAxis: {
+    type: 'value',
+    max: Math.ceil(Math.max(...loginDurationStats.map((user) => user.duration)) / 10) * 10,
+    splitNumber: 4,
+    axisLabel: { color: '#94a3b8', fontSize: 11, formatter: '{value}h' },
+    axisLine: { show: false },
+    axisTick: { show: false },
+    splitLine: { lineStyle: { color: '#eef2f7' } },
+  },
+  yAxis: {
+    type: 'category',
+    inverse: true,
+    data: loginDurationStats.map((user) => user.username),
+    axisLabel: { color: '#475569', fontSize: 12 },
+    axisLine: { show: false },
+    axisTick: { show: false },
+  },
+  series: [
+    {
+      name: '登录时长',
+      type: 'bar',
+      data: loginDurationStats.map((user) => user.duration),
+      barMaxWidth: 18,
+      barCategoryGap: '34%',
+      itemStyle: { color: '#4f46e5', borderRadius: [0, 4, 4, 0] },
+      label: { show: true, position: 'right', distance: 8, color: '#64748b', fontSize: 11, formatter: '{c} 小时' },
+    },
+  ],
+}))
+
+const recentLoginUsers: RecentLoginUser[] = [
+  { id: 1, username: 'admin', role: '超级管理员', lastLogin: '10 分钟前' },
+  { id: 2, username: 'zhangsan', role: '操作员', lastLogin: '2 小时前' },
+  { id: 5, username: 'zhaoliu', role: '观察员', lastLogin: '5 小时前' },
+  { id: 3, username: 'lisi', role: '操作员', lastLogin: '昨天 15:30' },
+]
+
+const roleTagType: Record<string, 'danger' | 'primary' | 'info'> = {
+  '超级管理员': 'danger',
+  '操作员': 'primary',
+  '观察员': 'info',
+}
+
 function viewAllTasks() {
   router.push('/fine-tune')
 }
@@ -262,6 +379,38 @@ function viewTask(task: DashboardTask) {
       </section>
     </div>
 
+    <div class="user-stats-row">
+      <section class="stat-card" aria-labelledby="op-dist-title">
+        <h2 id="op-dist-title" class="section-title">用户操作分布</h2>
+        <div class="chart-container">
+          <VChart class="pie-chart" :option="operationChartOption" autoresize />
+        </div>
+      </section>
+
+      <section class="stat-card" aria-labelledby="login-dur-title">
+        <h2 id="login-dur-title" class="section-title">登录时长排行 (本月)</h2>
+        <VChart class="duration-chart" :option="loginDurationChartOption" autoresize />
+      </section>
+
+      <section class="stat-card" aria-labelledby="recent-login-title">
+        <h2 id="recent-login-title" class="section-title">最近登录用户</h2>
+        <div class="list-container">
+          <div v-for="user in recentLoginUsers" :key="user.id" class="list-item recent-user-item">
+            <div class="user-info">
+              <el-avatar :size="32" class="user-avatar" :style="{ backgroundColor: '#e2e8f0', color: '#475569' }">
+                {{ user.username.slice(0, 1).toUpperCase() }}
+              </el-avatar>
+              <div class="user-meta">
+                <span class="username">{{ user.username }}</span>
+                <span class="login-time">{{ user.lastLogin }}</span>
+              </div>
+            </div>
+            <el-tag :type="roleTagType[user.role]" size="small">{{ user.role }}</el-tag>
+          </div>
+        </div>
+      </section>
+    </div>
+
     <section class="tasks-section" aria-labelledby="tasks-title">
       <div class="section-heading-row tasks-heading">
         <h2 id="tasks-title" class="section-title">训练任务</h2>
@@ -319,22 +468,102 @@ function viewTask(task: DashboardTask) {
 .dashboard-view {
   display: flex;
   flex-direction: column;
-  height: 100%;
+  min-height: 100%;
-  gap: 10px;
+  gap: 16px;
   min-width: 0;
-  min-height: 0;
   color: #1e293b;
 }
 
 .overview-section,
 .chart-section,
 .service-section,
+.stat-card,
 .tasks-section {
   border: 1px solid #e2e8f0;
   border-radius: 10px;
   background: #ffffff;
 }
 
+.user-stats-row {
+  display: grid;
+  grid-template-columns: repeat(3, minmax(0, 1fr));
+  gap: 16px;
+}
+
+.stat-card {
+  display: flex;
+  flex-direction: column;
+  padding: 16px 18px;
+  min-height: 284px;
+  min-width: 0;
+}
+
+.chart-container {
+  flex: 1 1 auto;
+  min-height: 224px;
+  margin-top: 10px;
+  width: 100%;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+}
+
+.pie-chart {
+  width: 100%;
+  height: 224px;
+}
+
+.duration-chart {
+  width: 100%;
+  height: 224px;
+  margin-top: 10px;
+}
+
+.list-container {
+  display: flex;
+  flex-direction: column;
+  gap: 12px;
+  margin-top: 16px;
+}
+
+.list-item {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+}
+
+.user-info {
+  display: flex;
+  align-items: center;
+  gap: 12px;
+}
+
+.user-avatar {
+  font-size: 14px;
+  font-weight: 600;
+}
+
+.username {
+  font-size: 13px;
+  font-weight: 500;
+  color: #334155;
+}
+
+.user-meta {
+  display: flex;
+  flex-direction: column;
+  gap: 2px;
+}
+
+.login-time {
+  font-size: 11px;
+  color: #94a3b8;
+}
+
+.recent-user-item {
+  padding: 2px 0;
+}
+
 .section-title {
   margin: 0;
   font-size: 15px;
@@ -429,8 +658,8 @@ function viewTask(task: DashboardTask) {
 .dashboard-middle {
   display: grid;
   grid-template-columns: minmax(0, 1.9fr) minmax(300px, 0.82fr);
-  flex: 1 1 auto;
+  flex: 0 0 auto;
-  gap: 10px;
+  gap: 16px;
   min-height: 0;
 }
 
@@ -438,8 +667,8 @@ function viewTask(task: DashboardTask) {
 .service-section {
   display: flex;
   flex-direction: column;
-  min-height: 280px;
+  min-height: 360px;
-  padding: 12px 14px;
+  padding: 16px 18px;
 }
 
 .section-heading-row {
@@ -460,8 +689,8 @@ function viewTask(task: DashboardTask) {
 .training-chart {
   flex: 1 1 auto;
   width: 100%;
-  height: auto;
+  height: 300px;
-  min-height: 230px;
+  min-height: 300px;
 }
 
 .service-table {
@@ -614,10 +843,6 @@ function viewTask(task: DashboardTask) {
 }
 
 @media (max-height: 900px) and (min-width: 1181px) {
-  .dashboard-view {
-    gap: 8px;
-  }
-
   .section-title {
     font-size: 14px;
   }
@@ -666,20 +891,6 @@ function viewTask(task: DashboardTask) {
     }
   }
 
-  .dashboard-middle {
-    gap: 8px;
-  }
-
-  .chart-section,
-  .service-section {
-    min-height: 240px;
-    padding: 10px 12px;
-  }
-
-  .training-chart {
-    min-height: 200px;
-  }
-
   .service-table {
     grid-template-rows: 32px repeat(4, minmax(40px, 1fr));
     margin-top: 8px;
@@ -741,6 +952,17 @@ function viewTask(task: DashboardTask) {
   .dashboard-middle {
     grid-template-columns: 1fr;
   }
+
+  .user-stats-row {
+    grid-template-columns: repeat(2, minmax(0, 1fr));
+  }
+}
+
+@media (max-width: 720px) {
+  .user-stats-row {
+    grid-template-columns: 1fr;
+  }
+
 }
 
 @media (prefers-reduced-motion: reduce) {