fix : affichage des absences dans les heures vue semaine + refacto

frontend/services/dto/work-hour.ts

@@ -1,4 +1,5 @@
 import type { Employee } from './employee'
+import type { ContractType, TrackingMode } from './contract'
 
 export type WorkHour = {
   id: number
@@ -33,6 +34,9 @@ export type WeeklyWorkHourDailySummary = {
   nightMinutes: number
   totalMinutes: number
   present?: number | null
+  hasAbsence?: boolean
+  absenceLabel?: string | null
+  absenceColor?: string | null
 }
 
 export type WeeklyWorkHourRowSummary = {
@@ -41,7 +45,8 @@ export type WeeklyWorkHourRowSummary = {
   lastName: string
   siteName?: string | null
   contractName?: string | null
-  trackingMode?: 'TIME' | 'PRESENCE' | null
+  contractType?: ContractType | null
+  trackingMode?: TrackingMode | null
   daily: WeeklyWorkHourDailySummary[]
   weeklyDayMinutes: number
   weeklyNightMinutes: number