feat: 看板细节优化与设计走查补充

DashboardView 调整窄屏布局与卡片展示，回归脚本补充断言，新增窄屏看板设计截图并更新视觉走查记录。

frontend/scripts/regression-dashboard.mjs

@@ -41,9 +41,13 @@ assert.doesNotMatch(dashboardSource, /class=["']dashboard-heading["']/, '服务
 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-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, /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, /@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(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')