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/utils/settingsModelHelper.js

@@ -206,6 +206,9 @@ export function buildDefaultState(companyProfile, currentUser) {
       recordNumber: '',
       copyright: `Copyright © 2024-${CURRENT_YEAR} ${companyName}. All Rights Reserved.`
     },
+    appearanceForm: {
+      themeSkin: 'sky'
+    },
     adminForm: {
       adminAccount,
       adminEmail,
@@ -310,6 +313,7 @@ export function mergeState(baseState, overrideState) {
 
   return {
     companyForm: { ...baseState.companyForm, ...(overrideState?.companyForm || {}) },
+    appearanceForm: { ...baseState.appearanceForm, ...(overrideState?.appearanceForm || {}) },
     adminForm: { ...baseState.adminForm, ...(overrideState?.adminForm || {}) },
     sessionForm: { ...baseState.sessionForm, ...(overrideState?.sessionForm || {}) },
     hermesForm: mergeHermesEmployeeForm({
@@ -326,6 +330,7 @@ export function mergeState(baseState, overrideState) {
 export function sanitizeForStorage(state) {
   return {
     companyForm: { ...state.companyForm },
+    appearanceForm: { ...state.appearanceForm },
     adminForm: {
       ...state.adminForm,
       newPassword: '',