feat(api): add stats chart endpoint for admin access with time series data

feat(dayjs): integrate dayjs for date handling and formatting across the application
refactor(routes): update date handling in id-tags, transactions, users, and dashboard routes to use dayjs
style(globals): improve CSS variable definitions for better readability and consistency
deps: add dayjs as a dependency for date manipulation

apps/csms/src/index.ts

@@ -9,6 +9,7 @@ import { showRoutes } from 'hono/dev'
 import { auth } from './lib/auth.ts'
 import { createOcppHandler } from './ocpp/handler.ts'
 import statsRoutes from './routes/stats.ts'
+import statsChartRoutes from './routes/stats-chart.ts'
 import chargePointRoutes from './routes/charge-points.ts'
 import transactionRoutes from './routes/transactions.ts'
 import idTagRoutes from './routes/id-tags.ts'
@@ -51,6 +52,7 @@ app.on(['POST', 'GET'], '/api/auth/*', (c) => auth.handler(c.req.raw))
 
 // REST API routes
 app.route('/api/stats', statsRoutes)
+app.route('/api/stats/chart', statsChartRoutes)
 app.route('/api/charge-points', chargePointRoutes)
 app.route('/api/transactions', transactionRoutes)
 app.route('/api/id-tags', idTagRoutes)