refactor(frontend) : reorganize components into subdirectories and fix imports

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

frontend/components/ui/ConfirmDeleteStatusModal.vue

@@ -0,0 +1,96 @@
+<template>
+    <Teleport v-if="modelValue" to="body">
+        <Transition name="modal" appear>
+            <div class="fixed inset-0 z-50 flex items-center justify-center">
+                <div class="absolute inset-0 bg-black/30" @click="cancel" />
+                <div class="relative z-10 w-full max-w-md rounded-lg bg-white p-6 shadow-xl">
+                    <h3 class="text-lg font-bold text-neutral-900">Supprimer le statut « {{ statusLabel }} »</h3>
+
+                    <p class="mt-3 text-sm text-neutral-600">
+                        {{ taskCount }} tâche{{ taskCount > 1 ? 's sont liées' : ' est liée' }} à ce statut.
+                        Choisissez où les déplacer :
+                    </p>
+
+                    <div class="mt-4">
+                        <MalioSelect
+                            v-model="targetStatusId"
+                            :options="targetOptions"
+                            label="Déplacer vers"
+                            empty-option-label="Backlog (sans statut)"
+                            min-width="w-full"
+                        />
+                    </div>
+
+                    <div class="mt-6 flex justify-end gap-3">
+                        <button
+                            type="button"
+                            class="rounded-md border border-neutral-300 px-4 py-2 text-sm font-semibold text-neutral-700 hover:bg-neutral-50"
+                            @click="cancel"
+                        >
+                            Annuler
+                        </button>
+                        <button
+                            type="button"
+                            class="rounded-md bg-red-600 px-4 py-2 text-sm font-semibold text-white hover:bg-red-700 disabled:opacity-50"
+                            :disabled="isProcessing"
+                            @click="confirm"
+                        >
+                            Supprimer
+                        </button>
+                    </div>
+                </div>
+            </div>
+        </Transition>
+    </Teleport>
+</template>
+
+<script setup lang="ts">
+import type { TaskStatus } from '~/services/dto/task-status'
+
+const props = defineProps<{
+    modelValue: boolean
+    statusLabel: string
+    taskCount: number
+    availableStatuses: TaskStatus[]
+}>()
+
+const emit = defineEmits<{
+    (e: 'update:modelValue', value: boolean): void
+    (e: 'confirm', targetStatusId: number | null): void
+}>()
+
+const targetStatusId = ref<number | null>(null)
+const isProcessing = ref(false)
+
+const targetOptions = computed(() =>
+    props.availableStatuses.map(s => ({ label: s.label, value: s.id }))
+)
+
+watch(() => props.modelValue, (open) => {
+    if (open) {
+        targetStatusId.value = null
+        isProcessing.value = false
+    }
+})
+
+function cancel() {
+    emit('update:modelValue', false)
+}
+
+function confirm() {
+    isProcessing.value = true
+    emit('confirm', targetStatusId.value)
+}
+</script>
+
+<style scoped>
+.modal-enter-active,
+.modal-leave-active {
+    transition: opacity 0.2s ease;
+}
+
+.modal-enter-from,
+.modal-leave-to {
+    opacity: 0;
+}
+</style>