fix : correction du calcule des RTT

frontend/components/employees/RttTab.vue

@@ -332,10 +332,19 @@ const carryMonth = computed(() => {
 })
 
 const showCarryRow = computed(() => {
-  return (
-    currentMonth.value === carryMonth.value &&
-    (props.summary?.carryFromPreviousYearMinutes ?? 0) > 0
-  )
+  if (currentMonth.value !== carryMonth.value) return false
+  if ((props.summary?.carryFromPreviousYearMinutes ?? 0) === 0) return false
+
+  // On the first exercise, hide carry if carry month is before rttStartDate
+  if (props.summary?.rttStartDate) {
+    const startDate = new Date(props.summary.rttStartDate)
+    const viewYear = currentMonth.value >= 6 ? props.summary.year - 1 : props.summary.year
+    const viewDate = new Date(viewYear, currentMonth.value - 1, 1)
+    const startMonthDate = new Date(startDate.getFullYear(), startDate.getMonth(), 1)
+    if (viewDate < startMonthDate) return false
+  }
+
+  return true
 })
 
 // --- Month report row (cumulated balance from previous months) ---
@@ -390,6 +399,18 @@ const monthReport = computed(() => {
 const showMonthReportRow = computed(() => {
   // Not on the carry month — carry row handles that
   if (currentMonth.value === carryMonth.value) return false
+
+  // On the first exercise (containing rttStartDate), hide report for months before the start date
+  if (props.summary?.rttStartDate) {
+    const startDate = new Date(props.summary.rttStartDate)
+    const startYear = startDate.getFullYear()
+    const startMonth = startDate.getMonth() + 1
+    const viewYear = currentMonth.value >= 6 ? props.summary.year - 1 : props.summary.year
+    const viewDate = new Date(viewYear, currentMonth.value - 1, 1)
+    const startMonthDate = new Date(startYear, startMonth - 1, 1)
+    if (viewDate < startMonthDate) return false
+  }
+
   const r = monthReport.value
   return r.total !== 0
 })