feat : modification de la gestion des jours fériés

frontend/composables/useHoursPage.ts

@@ -447,10 +447,21 @@ export const useHoursPage = () => {
       nightMinutes += nightIntervalMinutes(from, to)
     }
 
-    const creditedMinutes = dayContextByEmployeeId.value.get(employeeId)?.creditedMinutes ?? 0
+    const dayRow = dayContextByEmployeeId.value.get(employeeId)
+    const creditedMinutes = dayRow?.creditedMinutes ?? 0
     totalMinutes += creditedMinutes
-    const dayMinutes = Math.max(0, totalMinutes - nightMinutes)
-    return { dayMinutes, nightMinutes, totalMinutes }
+    let dayMinutes = Math.max(0, totalMinutes - nightMinutes)
+
+    // Virtual holiday credit: the backend already applies the contract-period
+    // schedule (workDaysHours) and the absence-override rule, so just use the
+    // computed value instead of recomputing on the client.
+    const virtualHolidayMinutes = dayRow?.virtualHolidayMinutes ?? 0
+    if (virtualHolidayMinutes > totalMinutes) {
+      dayMinutes += virtualHolidayMinutes - totalMinutes
+      totalMinutes = virtualHolidayMinutes
+    }
+
+    return { dayMinutes, nightMinutes, totalMinutes, virtualHolidayMinutes }
   }
 
   const getRowAbsenceLabel = (employeeId: number) => {
@@ -583,7 +594,6 @@ export const useHoursPage = () => {
 
   const openAbsenceDrawer = (employeeId: number) => {
     if (!hasContractAtSelectedDate(employeeId)) return
-    if (isSelectedDateHoliday.value) return
 
     const existing = absences.value.find((absence) => {
       if (absence.employee?.id !== employeeId) return false