refactor(frontend) : extract shared components and reduce file sizes

- Extract CustomFieldInputGrid.vue from 6 duplicated template blocks (~70 lines each)
- Extract EntityHistorySection.vue from 3 identical history sections in edit pages
- Extract useDragReorder composable from 4 identical drag-and-drop implementations in StructureNodeEditor (~330 lines → ~30)
- Extract catalogDisplayUtils.ts (resolvePrimaryDocument, resolveSupplierNames, buildSuppliersDisplay)
- Remove redundant computed wrappers (historyEntries, loadingTypes, selectedFiles)
- Remove unused imports (fieldKey, historyActionLabel, formatHistoryDate, *HistoryEntry types)
- Move Intl.DateTimeFormat to module-level in date.ts

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

app/components/common/CustomFieldInputGrid.vue

@@ -0,0 +1,83 @@
+<template>
+  <div class="grid grid-cols-1 gap-4 md:grid-cols-2">
+    <div
+      v-for="(field, index) in fields"
+      :key="fieldKey(field, index)"
+      class="form-control"
+    >
+      <label class="label">
+        <span class="label-text">{{ field.name }}</span>
+        <span v-if="field.required" class="label-text-alt text-error">*</span>
+      </label>
+      <input
+        v-if="field.type === 'text'"
+        v-model="field.value"
+        type="text"
+        class="input input-bordered input-sm md:input-md"
+        :required="field.required"
+        :disabled="disabled"
+      >
+      <input
+        v-else-if="field.type === 'number'"
+        v-model="field.value"
+        type="number"
+        step="0.01"
+        class="input input-bordered input-sm md:input-md"
+        :required="field.required"
+        :disabled="disabled"
+      >
+      <select
+        v-else-if="field.type === 'select'"
+        v-model="field.value"
+        class="select select-bordered select-sm md:select-md"
+        :required="field.required"
+        :disabled="disabled"
+      >
+        <option value="">Sélectionner...</option>
+        <option
+          v-for="option in field.options"
+          :key="option"
+          :value="option"
+        >
+          {{ option }}
+        </option>
+      </select>
+      <label v-else-if="field.type === 'boolean'" class="flex items-center gap-3 cursor-pointer">
+        <input
+          v-model="field.value"
+          type="checkbox"
+          class="toggle toggle-primary toggle-sm md:toggle-md"
+          true-value="true"
+          false-value="false"
+          :disabled="disabled"
+        >
+        <span class="text-sm" :class="field.value === 'true' ? 'text-success font-medium' : 'text-base-content/60'">{{ field.value === 'true' ? 'Oui' : 'Non' }}</span>
+      </label>
+      <input
+        v-else-if="field.type === 'date'"
+        v-model="field.value"
+        type="date"
+        class="input input-bordered input-sm md:input-md"
+        :required="field.required"
+        :disabled="disabled"
+      >
+      <input
+        v-else
+        v-model="field.value"
+        type="text"
+        class="input input-bordered input-sm md:input-md"
+        :required="field.required"
+        :disabled="disabled"
+      >
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { fieldKey, type CustomFieldInput } from '~/shared/utils/customFieldFormUtils'
+
+defineProps<{
+  fields: CustomFieldInput[]
+  disabled?: boolean
+}>()
+</script>

app/components/common/EntityHistorySection.vue

@@ -0,0 +1,97 @@
+<template>
+  <section class="space-y-3 rounded-lg border border-base-200 bg-base-200/40 p-4">
+    <header class="flex items-center justify-between gap-3">
+      <div>
+        <h2 class="font-semibold text-base-content">Historique</h2>
+        <p class="text-xs text-base-content/70">
+          Qui a changé quoi, et quand.
+        </p>
+      </div>
+      <span v-if="entries.length" class="badge badge-outline">
+        {{ entries.length }} entrée{{ entries.length > 1 ? 's' : '' }}
+      </span>
+    </header>
+
+    <div v-if="loading" class="flex items-center gap-2 text-sm text-base-content/70">
+      <span class="loading loading-spinner loading-sm" aria-hidden="true" />
+      Chargement de l'historique…
+    </div>
+
+    <div v-else-if="error" class="alert alert-warning">
+      <span>{{ error }}</span>
+    </div>
+
+    <p v-else-if="entries.length === 0" class="text-xs text-base-content/70">
+      Aucun changement enregistré pour le moment.
+    </p>
+
+    <ul v-else class="max-h-80 space-y-2 overflow-y-auto pr-1">
+      <li
+        v-for="entry in entries"
+        :key="entry.id"
+        class="rounded-md border border-base-200 bg-base-100 px-3 py-2"
+      >
+        <div class="flex flex-wrap items-center justify-between gap-2 text-xs text-base-content/70">
+          <span class="font-medium text-base-content">
+            {{ historyActionLabel(entry.action) }}
+          </span>
+          <span>{{ formatHistoryDate(entry.createdAt) }}</span>
+        </div>
+        <p class="mt-1 text-xs text-base-content/60">
+          Par {{ entry.actor?.label || 'Inconnu' }}
+        </p>
+
+        <ul
+          v-if="diffEntries(entry).length"
+          class="mt-2 space-y-1 text-xs"
+        >
+          <li
+            v-for="diffEntry in diffEntries(entry)"
+            :key="`${entry.id}-${diffEntry.field}`"
+            class="flex flex-col gap-0.5"
+          >
+            <span class="font-medium text-base-content/80">{{ diffEntry.label }}</span>
+            <span class="text-base-content/60">
+              {{ diffEntry.fromLabel }} → {{ diffEntry.toLabel }}
+            </span>
+          </li>
+        </ul>
+
+        <p
+          v-else-if="entry.snapshot?.name"
+          class="mt-2 text-xs text-base-content/70"
+        >
+          {{ entry.snapshot.name }}
+        </p>
+      </li>
+    </ul>
+  </section>
+</template>
+
+<script setup lang="ts">
+import {
+  historyActionLabel,
+  formatHistoryDate,
+  historyDiffEntries,
+  type HistoryDiffEntry,
+} from '~/shared/utils/historyDisplayUtils'
+
+interface HistoryEntry {
+  id: string
+  action: string
+  createdAt: string
+  actor?: { label?: string } | null
+  diff?: Record<string, { from?: unknown; to?: unknown }> | null
+  snapshot?: { name?: string } | null
+}
+
+const props = defineProps<{
+  entries: HistoryEntry[]
+  loading?: boolean
+  error?: string | null
+  fieldLabels: Record<string, string>
+}>()
+
+const diffEntries = (entry: HistoryEntry): HistoryDiffEntry[] =>
+  historyDiffEntries(entry, props.fieldLabels)
+</script>