feat: 引入 ECharts 统一图表并完善员工画像标签分页

后端优化员工行为画像服务和辅助函数，完善系统设置模型和
配置持久化，前端引入 ECharts 替换所有图表组件实现统一
渲染，新增员工画像标签分页器和数字员工工作记录组件，优
化工作台响应式布局和登录页过渡动画，完善预算中心和数字
员工页面样式细节。

web/src/components/charts/BudgetTrendChart.vue

@@ -36,6 +36,8 @@ const progress = useAnimationProgress([
   () => props.available
 ], 1000)
 const themeColors = useThemeColors()
+const prefersReducedMotion = () =>
+  typeof window !== 'undefined' && window.matchMedia?.('(prefers-reduced-motion: reduce)').matches
 
 const currency = (value) =>
   Number(value || 0).toLocaleString('zh-CN', {
@@ -80,7 +82,7 @@ const chartData = computed(() => ({
       label: '已使用',
       data: scaleSeries(usedPercent.value),
       backgroundColor: themeColors.value.chartPrimary,
-      borderRadius: 5,
+      borderRadius: 4,
       borderSkipped: false,
       stack: 'budgetUsage',
       amounts: props.used
@@ -89,7 +91,7 @@ const chartData = computed(() => ({
       label: '已占用',
       data: scaleSeries(occupiedPercent.value),
       backgroundColor: themeColors.value.warning,
-      borderRadius: 5,
+      borderRadius: 4,
       borderSkipped: false,
       stack: 'budgetUsage',
       amounts: props.occupied
@@ -98,7 +100,7 @@ const chartData = computed(() => ({
       label: '剩余可用',
       data: scaleSeries(availablePercent.value),
       backgroundColor: '#e5edf3',
-      borderRadius: 5,
+      borderRadius: 4,
       borderSkipped: false,
       stack: 'budgetUsage',
       amounts: props.available
@@ -114,7 +116,7 @@ const chartOptions = computed(() => ({
     intersect: false
   },
   animation: {
-    duration: 760,
+    duration: prefersReducedMotion() ? 0 : 760,
     easing: 'easeOutQuart'
   },
   plugins: {
@@ -127,6 +129,7 @@ const chartOptions = computed(() => ({
       borderWidth: 1,
       bodyColor: '#475569',
       titleColor: '#0f172a',
+      cornerRadius: 4,
       padding: 12,
       displayColors: true,
       callbacks: {