feat: ajout des commentaires à la semaine (#15)

| Numéro du ticket | Titre du ticket |
|------------------|-----------------|
|                  |                 |

## Description de la PR

## Modification du .env

## Check list

- [x] Pas de régression
- [ ] TU/TI/TF rédigée
- [x] TU/TI/TF OK
- [ ] CHANGELOG modifié

Reviewed-on: #15
Co-authored-by: tristan <tristan@yuno.malio.fr>
Co-committed-by: tristan <tristan@yuno.malio.fr>

frontend/components/hours/WeekCommentDrawer.vue

@@ -0,0 +1,81 @@
+<template>
+  <MalioDrawer v-model="drawerOpen" title="Commentaire">
+    <form class="space-y-4" @submit.prevent="onSave">
+      <div v-if="employeeLabel" class="text-md font-semibold text-neutral-700">{{ employeeLabel }}</div>
+      <div class="text-md font-semibold text-neutral-700">{{ formatWeekRange }}</div>
+      <MalioInputTextArea
+        v-model="content"
+        label="Commentaire"
+        :size="8"
+        :max-length="5000"
+        :show-counter="true"
+        resize="vertical"
+      />
+      <div class="sticky bottom-0 -mx-[20px] bg-white px-[20px] py-3 flex justify-between gap-3">
+        <MalioButton
+          v-if="commentId"
+          label="Supprimer"
+          variant="danger"
+          :disabled="isSubmitting"
+          @click="onDelete"
+        />
+        <MalioButton
+          label="Enregistrer"
+          button-class="ml-auto"
+          :disabled="isSubmitting || !canSubmit"
+          @click="onSave"
+        />
+      </div>
+    </form>
+  </MalioDrawer>
+</template>
+
+<script setup lang="ts">
+import { computed, ref, watch } from 'vue'
+import { createWeekComment, deleteWeekComment, updateWeekComment } from '~/services/employee-week-comments'
+import { getIsoWeekNumber, parseYmd } from '~/utils/date'
+
+const props = defineProps<{
+  modelValue: boolean
+  employeeId: number | null
+  weekStart: string
+  weekEnd: string
+  initialContent: string
+  commentId: number | null
+  employeeLabel?: string
+}>()
+const emit = defineEmits<{ (e: 'update:modelValue', v: boolean): void; (e: 'saved'): void }>()
+
+const drawerOpen = computed({ get: () => props.modelValue, set: (v) => emit('update:modelValue', v) })
+const content = ref('')
+const isSubmitting = ref(false)
+
+watch(() => [props.modelValue, props.initialContent] as const, ([open, init]) => { if (open) content.value = init ?? '' }, { immediate: true })
+
+const formatWeekRange = computed(() => {
+  const fmt = (ymd: string) => { const p = ymd.split('-'); return p.length === 3 ? `${p[2]}/${p[1]}/${p[0]}` : ymd }
+  const start = parseYmd(props.weekStart)
+  const weekLabel = start ? `S${getIsoWeekNumber(start)}` : ''
+  return weekLabel ? `${weekLabel} du ${fmt(props.weekStart)} au ${fmt(props.weekEnd)}` : `${fmt(props.weekStart)} → ${fmt(props.weekEnd)}`
+})
+
+const canSubmit = computed(() => content.value.trim().length > 0 || props.commentId !== null)
+
+const onSave = async () => {
+  if (!props.employeeId || isSubmitting.value) return
+  const trimmed = content.value.trim()
+  isSubmitting.value = true
+  try {
+    if (trimmed === '' && props.commentId) await deleteWeekComment(props.commentId)
+    else if (trimmed !== '' && props.commentId) await updateWeekComment(props.commentId, trimmed)
+    else if (trimmed !== '') await createWeekComment({ employeeId: props.employeeId, weekStartDate: props.weekStart, content: trimmed })
+    emit('saved'); drawerOpen.value = false
+  } finally { isSubmitting.value = false }
+}
+
+const onDelete = async () => {
+  if (!props.commentId || isSubmitting.value) return
+  isSubmitting.value = true
+  try { await deleteWeekComment(props.commentId); emit('saved'); drawerOpen.value = false } finally { isSubmitting.value = false }
+}
+</script>