diff --git a/app/components/TypeEditComponentRequirementsSection.vue b/app/components/TypeEditComponentRequirementsSection.vue
index 875e1f5..c434075 100644
--- a/app/components/TypeEditComponentRequirementsSection.vue
+++ b/app/components/TypeEditComponentRequirementsSection.vue
@@ -1,137 +1,50 @@
 <template>
-  <div class="card bg-base-100 shadow-lg">
-    <div class="card-body space-y-4">
-      <div class="flex items-center justify-between">
-        <h3 class="card-title text-lg">Familles de composants</h3>
-        <button type="button" class="btn btn-primary btn-sm" @click="addRequirement">
-          <IconLucidePlus class="w-4 h-4 mr-2" aria-hidden="true" />
-          Ajouter une famille
-        </button>
-      </div>
-
-      <p class="text-sm text-gray-500">
-        Chaque ligne correspond à un groupe de composants attendus pour le type de machine. Sélectionnez le type de composant (famille), puis définissez le nombre minimal/maximal et si l'utilisateur peut créer un nouveau modèle lors de l'instanciation d'une machine.
-      </p>
-
-      <div v-if="requirements.length === 0" class="text-sm text-gray-500 bg-base-200/60 rounded-md p-4">
-        Aucun groupe configuré. Ajoutez votre première famille de composants.
-      </div>
-
-      <div
-        v-for="(requirement, index) in requirements"
-        :key="requirement.id || index"
-        class="border border-base-200 rounded-lg p-4 space-y-3"
-      >
-        <div class="flex items-start justify-between gap-3">
-          <div class="grid grid-cols-1 md:grid-cols-2 gap-3 flex-1">
-            <div class="form-control">
-              <label class="label">
-                <span class="label-text">Type de composant</span>
-                <span class="label-text-alt text-error">*</span>
-              </label>
-              <select
-                :value="requirement.typeComposantId || ''"
-                class="select select-bordered select-sm"
-                required
-                @change="updateRequirement(index, { typeComposantId: $event.target.value || null })"
-              >
-                <option value="">Sélectionner un type</option>
-                <option
-                  v-for="type in componentTypes"
-                  :key="type.id"
-                  :value="type.id"
-                >
-                  {{ type.name }}
-                </option>
-              </select>
-            </div>
-
-            <div class="form-control">
-              <label class="label">
-                <span class="label-text">Libellé</span>
-                <span class="label-text-alt text-xs">Optionnel</span>
-              </label>
-              <input
-                :value="requirement.label || ''"
-                type="text"
-                class="input input-bordered input-sm"
-                placeholder="Ex: Sangles principales"
-                @input="updateRequirement(index, { label: $event.target.value })"
-              />
-            </div>
-
-            <div class="form-control">
-              <label class="label">
-                <span class="label-text">Minimum requis</span>
-              </label>
-              <input
-                :value="requirement.minCount ?? 1"
-                type="number"
-                min="0"
-                class="input input-bordered input-sm"
-                @input="updateRequirement(index, { minCount: parseNumber($event.target.value) })"
-              />
-            </div>
-
-            <div class="form-control">
-              <label class="label">
-                <span class="label-text">Maximum autorisé</span>
-                <span class="label-text-alt text-xs">Laisser vide pour illimité</span>
-              </label>
-              <input
-                :value="requirement.maxCount ?? ''"
-                type="number"
-                min="0"
-                class="input input-bordered input-sm"
-                @input="updateRequirement(index, { maxCount: parseOptionalNumber($event.target.value) })"
-              />
-            </div>
-          </div>
-
-          <button
-            type="button"
-            class="btn btn-square btn-error btn-sm"
-            @click="removeRequirement(index)"
-          >
-            <IconLucideTrash2 class="w-4 h-4" aria-hidden="true" />
-          </button>
-        </div>
-
-        <div class="flex flex-wrap items-center gap-4 text-sm">
-          <label class="flex items-center gap-2">
-            <input
-              type="checkbox"
-              class="checkbox checkbox-sm"
-              :checked="requirement.required ?? true"
-              @change="updateRequirement(index, { required: $event.target.checked })"
-            />
-            Requis
-          </label>
-
-          <label class="flex items-center gap-2">
-            <input
-              type="checkbox"
-              class="checkbox checkbox-sm"
-              :checked="requirement.allowNewModels ?? true"
-              @change="updateRequirement(index, { allowNewModels: $event.target.checked })"
-            />
-            Autoriser la création de nouveaux modèles lors de l'instanciation
-          </label>
-        </div>
-      </div>
-    </div>
-  </div>
+  <RequirementListEditor
+    v-model="requirements"
+    :type-options="componentTypes"
+    type-field="typeComposantId"
+    :labels="labels"
+    :default-requirement="createDefaultRequirement"
+    :required-fallback="true"
+    :min-fallback="1"
+  />
 </template>
 
-<script setup>
+<script setup lang="ts">
 import { computed, onMounted } from 'vue'
-import IconLucidePlus from '~icons/lucide/plus'
-import IconLucideTrash2 from '~icons/lucide/trash-2'
+import RequirementListEditor from '~/components/common/RequirementListEditor.vue'
 import { useComponentTypes } from '~/composables/useComponentTypes'
 
+type Requirement = Record<string, unknown> & {
+  id?: string | number
+  typeComposantId?: string | number | null
+  label?: string
+  minCount?: number | null
+  maxCount?: number | null
+  required?: boolean | null
+  allowNewModels?: boolean | null
+}
+
+type Labels = {
+  headerTitle: string
+  addButton: string
+  description: string
+  emptyState: string
+  typeSelectLabel: string
+  typePlaceholder: string
+  labelFieldLabel: string
+  labelFieldHelper: string
+  labelPlaceholder: string
+  minLabel: string
+  maxLabel: string
+  maxHelper: string
+  requiredLabel: string
+  allowNewModelsLabel: string
+}
+
 const props = defineProps({
   modelValue: {
-    type: Array,
+    type: Array as () => Requirement[],
     default: () => [],
   },
 })
@@ -142,50 +55,40 @@ const { componentTypes, loadComponentTypes } = useComponentTypes()
 
 const requirements = computed({
   get: () => props.modelValue,
-  set: (value) => emit('update:modelValue', value),
+  set: (value: Requirement[]) => emit('update:modelValue', value),
 })
 
+const createDefaultRequirement = (): Requirement => ({
+  id: undefined,
+  typeComposantId: null,
+  label: '',
+  minCount: 1,
+  maxCount: null,
+  required: true,
+  allowNewModels: true,
+})
+
+const labels: Labels = {
+  headerTitle: 'Familles de composants',
+  addButton: 'Ajouter une famille',
+  description:
+    "Chaque ligne correspond à un groupe de composants attendus pour le type de machine. Sélectionnez le type de composant (famille), puis définissez le nombre minimal/maximal et si l'utilisateur peut créer un nouveau modèle lors de l'instanciation d'une machine.",
+  emptyState: 'Aucun groupe configuré. Ajoutez votre première famille de composants.',
+  typeSelectLabel: 'Type de composant',
+  typePlaceholder: 'Sélectionner un type',
+  labelFieldLabel: 'Libellé',
+  labelFieldHelper: 'Optionnel',
+  labelPlaceholder: 'Ex: Sangles principales',
+  minLabel: 'Minimum requis',
+  maxLabel: 'Maximum autorisé',
+  maxHelper: 'Laisser vide pour illimité',
+  requiredLabel: 'Requis',
+  allowNewModelsLabel: "Autoriser la création de nouveaux modèles lors de l'instanciation",
+}
+
 onMounted(async () => {
   if (!componentTypes.value.length) {
     await loadComponentTypes()
   }
 })
-
-const addRequirement = () => {
-  requirements.value = [
-    ...requirements.value,
-    {
-      id: undefined,
-      typeComposantId: null,
-      label: '',
-      minCount: 1,
-      maxCount: null,
-      required: true,
-      allowNewModels: true,
-    },
-  ]
-}
-
-const removeRequirement = (index) => {
-  requirements.value = requirements.value.filter((_, i) => i !== index)
-}
-
-const updateRequirement = (index, patch) => {
-  requirements.value = requirements.value.map((item, i) =>
-    i === index ? { ...item, ...patch } : item
-  )
-}
-
-const parseNumber = (value) => {
-  const parsed = Number(value)
-  return Number.isFinite(parsed) ? parsed : 0
-}
-
-const parseOptionalNumber = (value) => {
-  if (value === '' || value === null || value === undefined) {
-    return null
-  }
-  const parsed = Number(value)
-  return Number.isFinite(parsed) ? parsed : null
-}
 </script>
diff --git a/app/components/TypeEditPieceRequirementsSection.vue b/app/components/TypeEditPieceRequirementsSection.vue
index 1424ad1..52c4fc9 100644
--- a/app/components/TypeEditPieceRequirementsSection.vue
+++ b/app/components/TypeEditPieceRequirementsSection.vue
@@ -1,137 +1,50 @@
 <template>
-  <div class="card bg-base-100 shadow-lg">
-    <div class="card-body space-y-4">
-      <div class="flex items-center justify-between">
-        <h3 class="card-title text-lg">Pièces principales</h3>
-        <button type="button" class="btn btn-primary btn-sm" @click="addRequirement">
-          <IconLucidePlus class="w-4 h-4 mr-2" aria-hidden="true" />
-          Ajouter un groupe
-        </button>
-      </div>
-
-      <p class="text-sm text-gray-500">
-        Configurez ici les familles de pièces principales attendues pour ce type de machine. Le nombre minimal/maximal est utilisé pour guider la création d'une machine.
-      </p>
-
-      <div v-if="requirements.length === 0" class="text-sm text-gray-500 bg-base-200/60 rounded-md p-4">
-        Aucun groupe configuré. Ajoutez votre première famille de pièces.
-      </div>
-
-      <div
-        v-for="(requirement, index) in requirements"
-        :key="requirement.id || index"
-        class="border border-base-200 rounded-lg p-4 space-y-3"
-      >
-        <div class="flex items-start justify-between gap-3">
-          <div class="grid grid-cols-1 md:grid-cols-2 gap-3 flex-1">
-            <div class="form-control">
-              <label class="label">
-                <span class="label-text">Type de pièce</span>
-                <span class="label-text-alt text-error">*</span>
-              </label>
-              <select
-                :value="requirement.typePieceId || ''"
-                class="select select-bordered select-sm"
-                required
-                @change="updateRequirement(index, { typePieceId: $event.target.value || null })"
-              >
-                <option value="">Sélectionner un type</option>
-                <option
-                  v-for="type in pieceTypes"
-                  :key="type.id"
-                  :value="type.id"
-                >
-                  {{ type.name }}
-                </option>
-              </select>
-            </div>
-
-            <div class="form-control">
-              <label class="label">
-                <span class="label-text">Libellé</span>
-                <span class="label-text-alt text-xs">Optionnel</span>
-              </label>
-              <input
-                :value="requirement.label || ''"
-                type="text"
-                class="input input-bordered input-sm"
-                placeholder="Ex: Vis principale"
-                @input="updateRequirement(index, { label: $event.target.value })"
-              />
-            </div>
-
-            <div class="form-control">
-              <label class="label">
-                <span class="label-text">Minimum requis</span>
-              </label>
-              <input
-                :value="requirement.minCount ?? 0"
-                type="number"
-                min="0"
-                class="input input-bordered input-sm"
-                @input="updateRequirement(index, { minCount: parseNumber($event.target.value) })"
-              />
-            </div>
-
-            <div class="form-control">
-              <label class="label">
-                <span class="label-text">Maximum autorisé</span>
-                <span class="label-text-alt text-xs">Laisser vide pour illimité</span>
-              </label>
-              <input
-                :value="requirement.maxCount ?? ''"
-                type="number"
-                min="0"
-                class="input input-bordered input-sm"
-                @input="updateRequirement(index, { maxCount: parseOptionalNumber($event.target.value) })"
-              />
-            </div>
-          </div>
-
-          <button
-            type="button"
-            class="btn btn-square btn-error btn-sm"
-            @click="removeRequirement(index)"
-          >
-            <IconLucideTrash2 class="w-4 h-4" aria-hidden="true" />
-          </button>
-        </div>
-
-        <div class="flex flex-wrap items-center gap-4 text-sm">
-          <label class="flex items-center gap-2">
-            <input
-              type="checkbox"
-              class="checkbox checkbox-sm"
-              :checked="requirement.required ?? false"
-              @change="updateRequirement(index, { required: $event.target.checked })"
-            />
-            Requis
-          </label>
-
-          <label class="flex items-center gap-2">
-            <input
-              type="checkbox"
-              class="checkbox checkbox-sm"
-              :checked="requirement.allowNewModels ?? true"
-              @change="updateRequirement(index, { allowNewModels: $event.target.checked })"
-            />
-            Autoriser la création de nouveaux modèles lors de l'instanciation
-          </label>
-        </div>
-      </div>
-    </div>
-  </div>
+  <RequirementListEditor
+    v-model="requirements"
+    :type-options="pieceTypes"
+    type-field="typePieceId"
+    :labels="labels"
+    :default-requirement="createDefaultRequirement"
+    :required-fallback="false"
+    :min-fallback="0"
+  />
 </template>
 
-<script setup>
+<script setup lang="ts">
 import { computed, onMounted } from 'vue'
-import IconLucidePlus from '~icons/lucide/plus'
-import IconLucideTrash2 from '~icons/lucide/trash-2'
+import RequirementListEditor from '~/components/common/RequirementListEditor.vue'
 import { usePieceTypes } from '~/composables/usePieceTypes'
 
+type Requirement = Record<string, unknown> & {
+  id?: string | number
+  typePieceId?: string | number | null
+  label?: string
+  minCount?: number | null
+  maxCount?: number | null
+  required?: boolean | null
+  allowNewModels?: boolean | null
+}
+
+type Labels = {
+  headerTitle: string
+  addButton: string
+  description: string
+  emptyState: string
+  typeSelectLabel: string
+  typePlaceholder: string
+  labelFieldLabel: string
+  labelFieldHelper: string
+  labelPlaceholder: string
+  minLabel: string
+  maxLabel: string
+  maxHelper: string
+  requiredLabel: string
+  allowNewModelsLabel: string
+}
+
 const props = defineProps({
   modelValue: {
-    type: Array,
+    type: Array as () => Requirement[],
     default: () => [],
   },
 })
@@ -142,50 +55,40 @@ const { pieceTypes, loadPieceTypes } = usePieceTypes()
 
 const requirements = computed({
   get: () => props.modelValue,
-  set: (value) => emit('update:modelValue', value),
+  set: (value: Requirement[]) => emit('update:modelValue', value),
 })
 
+const createDefaultRequirement = (): Requirement => ({
+  id: undefined,
+  typePieceId: null,
+  label: '',
+  minCount: 0,
+  maxCount: null,
+  required: false,
+  allowNewModels: true,
+})
+
+const labels: Labels = {
+  headerTitle: 'Pièces principales',
+  addButton: 'Ajouter un groupe',
+  description:
+    "Configurez ici les familles de pièces principales attendues pour ce type de machine. Le nombre minimal/maximal est utilisé pour guider la création d'une machine.",
+  emptyState: 'Aucun groupe configuré. Ajoutez votre première famille de pièces.',
+  typeSelectLabel: 'Type de pièce',
+  typePlaceholder: 'Sélectionner un type',
+  labelFieldLabel: 'Libellé',
+  labelFieldHelper: 'Optionnel',
+  labelPlaceholder: 'Ex: Vis principale',
+  minLabel: 'Minimum requis',
+  maxLabel: 'Maximum autorisé',
+  maxHelper: 'Laisser vide pour illimité',
+  requiredLabel: 'Requis',
+  allowNewModelsLabel: "Autoriser la création de nouveaux modèles lors de l'instanciation",
+}
+
 onMounted(async () => {
   if (!pieceTypes.value.length) {
     await loadPieceTypes()
   }
 })
-
-const addRequirement = () => {
-  requirements.value = [
-    ...requirements.value,
-    {
-      id: undefined,
-      typePieceId: null,
-      label: '',
-      minCount: 0,
-      maxCount: null,
-      required: false,
-      allowNewModels: true,
-    },
-  ]
-}
-
-const removeRequirement = (index) => {
-  requirements.value = requirements.value.filter((_, i) => i !== index)
-}
-
-const updateRequirement = (index, patch) => {
-  requirements.value = requirements.value.map((item, i) =>
-    i === index ? { ...item, ...patch } : item
-  )
-}
-
-const parseNumber = (value) => {
-  const parsed = Number(value)
-  return Number.isFinite(parsed) ? parsed : 0
-}
-
-const parseOptionalNumber = (value) => {
-  if (value === '' || value === null || value === undefined) {
-    return null
-  }
-  const parsed = Number(value)
-  return Number.isFinite(parsed) ? parsed : null
-}
 </script>
diff --git a/app/components/common/RequirementListEditor.vue b/app/components/common/RequirementListEditor.vue
new file mode 100644
index 0000000..c7429e9
--- /dev/null
+++ b/app/components/common/RequirementListEditor.vue
@@ -0,0 +1,246 @@
+<template>
+  <div class="card bg-base-100 shadow-lg">
+    <div class="card-body space-y-4">
+      <div class="flex items-center justify-between">
+        <h3 class="card-title text-lg">{{ labels.headerTitle }}</h3>
+        <button type="button" class="btn btn-primary btn-sm" @click="addRequirement">
+          <IconLucidePlus class="w-4 h-4 mr-2" aria-hidden="true" />
+          {{ labels.addButton }}
+        </button>
+      </div>
+
+      <p class="text-sm text-gray-500">
+        {{ labels.description }}
+      </p>
+
+      <div v-if="requirements.length === 0" class="text-sm text-gray-500 bg-base-200/60 rounded-md p-4">
+        {{ labels.emptyState }}
+      </div>
+
+      <div
+        v-for="(requirement, index) in requirements"
+        :key="requirement.id || index"
+        class="border border-base-200 rounded-lg p-4 space-y-3"
+      >
+        <div class="flex items-start justify-between gap-3">
+          <div class="grid grid-cols-1 md:grid-cols-2 gap-3 flex-1">
+            <div class="form-control">
+              <label class="label">
+                <span class="label-text">{{ labels.typeSelectLabel }}</span>
+                <span class="label-text-alt text-error">*</span>
+              </label>
+              <select
+                :value="requirement[typeField] ?? ''"
+                class="select select-bordered select-sm"
+                required
+                @change="updateRequirement(index, { [typeField]: normalizeTypeValue($event.target.value) })"
+              >
+                <option value="">{{ labels.typePlaceholder }}</option>
+                <option
+                  v-for="type in typeOptions"
+                  :key="type.id"
+                  :value="type.id"
+                >
+                  {{ type.name }}
+                </option>
+              </select>
+            </div>
+
+            <div class="form-control">
+              <label class="label">
+                <span class="label-text">{{ labels.labelFieldLabel }}</span>
+                <span v-if="labels.labelFieldHelper" class="label-text-alt text-xs">{{ labels.labelFieldHelper }}</span>
+              </label>
+              <input
+                :value="requirement.label ?? ''"
+                type="text"
+                class="input input-bordered input-sm"
+                :placeholder="labels.labelPlaceholder"
+                @input="updateRequirement(index, { label: $event.target.value })"
+              />
+            </div>
+
+            <div class="form-control">
+              <label class="label">
+                <span class="label-text">{{ labels.minLabel }}</span>
+              </label>
+              <input
+                :value="requirement.minCount ?? minFallback"
+                type="number"
+                min="0"
+                class="input input-bordered input-sm"
+                @input="updateRequirement(index, { minCount: parseNumber($event.target.value) })"
+              />
+            </div>
+
+            <div class="form-control">
+              <label class="label">
+                <span class="label-text">{{ labels.maxLabel }}</span>
+                <span v-if="labels.maxHelper" class="label-text-alt text-xs">{{ labels.maxHelper }}</span>
+              </label>
+              <input
+                :value="requirement.maxCount ?? ''"
+                type="number"
+                min="0"
+                class="input input-bordered input-sm"
+                @input="updateRequirement(index, { maxCount: parseOptionalNumber($event.target.value) })"
+              />
+            </div>
+          </div>
+
+          <button
+            type="button"
+            class="btn btn-square btn-error btn-sm"
+            @click="removeRequirement(index)"
+          >
+            <IconLucideTrash2 class="w-4 h-4" aria-hidden="true" />
+          </button>
+        </div>
+
+        <div class="flex flex-wrap items-center gap-4 text-sm">
+          <label class="flex items-center gap-2">
+            <input
+              type="checkbox"
+              class="checkbox checkbox-sm"
+              :checked="(requirement.required ?? requiredFallback) === true"
+              @change="updateRequirement(index, { required: $event.target.checked })"
+            />
+            {{ labels.requiredLabel }}
+          </label>
+
+          <label class="flex items-center gap-2">
+            <input
+              type="checkbox"
+              class="checkbox checkbox-sm"
+              :checked="(requirement.allowNewModels ?? allowNewModelsFallback) === true"
+              @change="updateRequirement(index, { allowNewModels: $event.target.checked })"
+            />
+            {{ labels.allowNewModelsLabel }}
+          </label>
+        </div>
+      </div>
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { computed } from 'vue'
+import type { PropType } from 'vue'
+import IconLucidePlus from '~icons/lucide/plus'
+import IconLucideTrash2 from '~icons/lucide/trash-2'
+
+type Option = {
+  id: string | number
+  name: string
+}
+
+type Requirement = Record<string, unknown> & {
+  id?: string | number
+  label?: string
+  minCount?: number | null
+  maxCount?: number | null
+  required?: boolean | null
+  allowNewModels?: boolean | null
+}
+
+type Labels = {
+  headerTitle: string
+  addButton: string
+  description: string
+  emptyState: string
+  typeSelectLabel: string
+  typePlaceholder: string
+  labelFieldLabel: string
+  labelFieldHelper?: string
+  labelPlaceholder?: string
+  minLabel: string
+  maxLabel: string
+  maxHelper?: string
+  requiredLabel: string
+  allowNewModelsLabel: string
+}
+
+const props = defineProps({
+  modelValue: {
+    type: Array as PropType<Requirement[]>,
+    default: () => [],
+  },
+  typeOptions: {
+    type: Array as PropType<Option[]>,
+    default: () => [],
+  },
+  typeField: {
+    type: String,
+    required: true,
+  },
+  labels: {
+    type: Object as PropType<Labels>,
+    required: true,
+  },
+  defaultRequirement: {
+    type: Function as PropType<() => Requirement>,
+    required: true,
+  },
+  requiredFallback: {
+    type: Boolean,
+    default: false,
+  },
+  allowNewModelsFallback: {
+    type: Boolean,
+    default: true,
+  },
+  minFallback: {
+    type: Number,
+    default: 0,
+  },
+})
+
+const emit = defineEmits(['update:modelValue'])
+
+const requirements = computed({
+  get: () => props.modelValue,
+  set: (value) => emit('update:modelValue', value),
+})
+
+const addRequirement = () => {
+  requirements.value = [
+    ...requirements.value,
+    props.defaultRequirement(),
+  ]
+}
+
+const removeRequirement = (index: number) => {
+  requirements.value = requirements.value.filter((_, i) => i !== index)
+}
+
+const updateRequirement = (index: number, patch: Partial<Requirement>) => {
+  requirements.value = requirements.value.map((item, i) =>
+    i === index ? { ...item, ...patch } : item
+  )
+}
+
+const parseNumber = (value: string) => {
+  const parsed = Number(value)
+  return Number.isFinite(parsed) ? parsed : 0
+}
+
+const parseOptionalNumber = (value: string) => {
+  if (value === '' || value === null || value === undefined) {
+    return null
+  }
+  const parsed = Number(value)
+  return Number.isFinite(parsed) ? parsed : null
+}
+
+const normalizeTypeValue = (value: string) => {
+  if (!value) {
+    return null
+  }
+  return value
+}
+</script>
+
+<!--
+  Éditeur générique de groupes de contraintes (pièces/composants) pour les types de machine.
+  Paramétrer les libellés et la structure via les props pour réutiliser ce bloc.
+-->
diff --git a/app/components/sites/SiteContactFormFields.vue b/app/components/sites/SiteContactFormFields.vue
new file mode 100644
index 0000000..5a26f49
--- /dev/null
+++ b/app/components/sites/SiteContactFormFields.vue
@@ -0,0 +1,98 @@
+<template>
+  <div class="grid grid-cols-1 gap-4">
+    <div class="form-control">
+      <label class="label">
+        <span class="label-text">Nom du contact</span>
+      </label>
+      <input
+        v-model="form.contactName"
+        type="text"
+        placeholder="Nom et prénom"
+        class="input input-bordered"
+        required
+      />
+    </div>
+
+    <div class="form-control">
+      <label class="label">
+        <span class="label-text">Téléphone</span>
+      </label>
+      <input
+        v-model="form.contactPhone"
+        type="tel"
+        placeholder="Ex: 06 00 00 00 00"
+        class="input input-bordered"
+        required
+      />
+    </div>
+
+    <div class="form-control">
+      <label class="label">
+        <span class="label-text">Adresse</span>
+      </label>
+      <input
+        v-model="form.contactAddress"
+        type="text"
+        placeholder="Adresse complète"
+        class="input input-bordered"
+        required
+      />
+    </div>
+
+    <div class="grid grid-cols-1 md:grid-cols-2 gap-4">
+      <div class="form-control">
+        <label class="label">
+          <span class="label-text">Code postal</span>
+        </label>
+        <input
+          v-model="form.contactPostalCode"
+          type="text"
+          placeholder="Code postal"
+          class="input input-bordered"
+          required
+        />
+      </div>
+
+      <div class="form-control">
+        <label class="label">
+          <span class="label-text">Ville</span>
+        </label>
+        <input
+          v-model="form.contactCity"
+          type="text"
+          placeholder="Ville"
+          class="input input-bordered"
+          required
+        />
+      </div>
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { toRefs } from 'vue'
+import type { PropType } from 'vue'
+
+type SiteForm = {
+  contactName: string
+  contactPhone: string
+  contactAddress: string
+  contactPostalCode: string
+  contactCity: string
+}
+
+const props = defineProps({
+  form: {
+    type: Object as PropType<SiteForm>,
+    required: true,
+  },
+})
+
+const form = toRefs(props.form)
+</script>
+
+<!--
+  Bloc de formulaire partagé pour la saisie/édition des informations de contact d'un site.
+  Utilisation :
+  <SiteContactFormFields :form="siteForm" />
+-->
diff --git a/app/components/sites/SiteCreateModal.vue b/app/components/sites/SiteCreateModal.vue
index d20ce2c..29361cb 100644
--- a/app/components/sites/SiteCreateModal.vue
+++ b/app/components/sites/SiteCreateModal.vue
@@ -16,74 +16,7 @@
           />
         </div>
 
-        <div class="grid grid-cols-1 gap-4">
-          <div class="form-control">
-            <label class="label">
-              <span class="label-text">Nom du contact</span>
-            </label>
-            <input
-              v-model="form.contactName"
-              type="text"
-              placeholder="Nom et prénom"
-              class="input input-bordered"
-              required
-            />
-          </div>
-
-          <div class="form-control">
-            <label class="label">
-              <span class="label-text">Téléphone</span>
-            </label>
-            <input
-              v-model="form.contactPhone"
-              type="tel"
-              placeholder="Ex: 06 00 00 00 00"
-              class="input input-bordered"
-              required
-            />
-          </div>
-
-          <div class="form-control">
-            <label class="label">
-              <span class="label-text">Adresse</span>
-            </label>
-            <input
-              v-model="form.contactAddress"
-              type="text"
-              placeholder="Adresse complète"
-              class="input input-bordered"
-              required
-            />
-          </div>
-
-          <div class="grid grid-cols-1 md:grid-cols-2 gap-4">
-            <div class="form-control">
-              <label class="label">
-                <span class="label-text">Code postal</span>
-              </label>
-              <input
-                v-model="form.contactPostalCode"
-                type="text"
-                placeholder="Code postal"
-                class="input input-bordered"
-                required
-              />
-            </div>
-
-            <div class="form-control">
-              <label class="label">
-                <span class="label-text">Ville</span>
-              </label>
-              <input
-                v-model="form.contactCity"
-                type="text"
-                placeholder="Ville"
-                class="input input-bordered"
-                required
-              />
-            </div>
-          </div>
-        </div>
+        <SiteContactFormFields :form="props.site" />
 
         <div class="modal-action">
           <button type="button" class="btn" @click="emit('close')">
@@ -100,6 +33,7 @@
 
 <script setup>
 import { toRefs } from 'vue'
+import SiteContactFormFields from '~/components/sites/SiteContactFormFields.vue'
 
 const props = defineProps({
   visible: {
diff --git a/app/components/sites/SiteEditModal.vue b/app/components/sites/SiteEditModal.vue
index 2414c6d..26c69e0 100644
--- a/app/components/sites/SiteEditModal.vue
+++ b/app/components/sites/SiteEditModal.vue
@@ -19,74 +19,7 @@
           />
         </div>
 
-        <div class="grid grid-cols-1 gap-4">
-          <div class="form-control">
-            <label class="label">
-              <span class="label-text">Nom du contact</span>
-            </label>
-            <input
-              v-model="form.contactName"
-              type="text"
-              placeholder="Nom et prénom"
-              class="input input-bordered"
-              required
-            />
-          </div>
-
-          <div class="form-control">
-            <label class="label">
-              <span class="label-text">Téléphone</span>
-            </label>
-            <input
-              v-model="form.contactPhone"
-              type="tel"
-              placeholder="Ex: 06 00 00 00 00"
-              class="input input-bordered"
-              required
-            />
-          </div>
-
-          <div class="form-control">
-            <label class="label">
-              <span class="label-text">Adresse</span>
-            </label>
-            <input
-              v-model="form.contactAddress"
-              type="text"
-              placeholder="Adresse complète"
-              class="input input-bordered"
-              required
-            />
-          </div>
-
-          <div class="grid grid-cols-1 md:grid-cols-2 gap-4">
-            <div class="form-control">
-              <label class="label">
-                <span class="label-text">Code postal</span>
-              </label>
-              <input
-                v-model="form.contactPostalCode"
-                type="text"
-                placeholder="Code postal"
-                class="input input-bordered"
-                required
-              />
-            </div>
-
-            <div class="form-control">
-              <label class="label">
-                <span class="label-text">Ville</span>
-              </label>
-              <input
-                v-model="form.contactCity"
-                type="text"
-                placeholder="Ville"
-                class="input input-bordered"
-                required
-              />
-            </div>
-          </div>
-        </div>
+        <SiteContactFormFields :form="props.form" />
 
         <div class="border-t border-base-200 pt-4 space-y-4">
           <div class="flex items-center justify-between">
@@ -163,6 +96,7 @@
 <script setup>
 import { computed, toRefs } from 'vue'
 import DocumentUpload from '~/components/DocumentUpload.vue'
+import SiteContactFormFields from '~/components/sites/SiteContactFormFields.vue'
 
 const props = defineProps({
   visible: {
diff --git a/app/pages/documents.vue b/app/pages/documents.vue
index b8ad6d7..7b0ef77 100644
--- a/app/pages/documents.vue
+++ b/app/pages/documents.vue
@@ -89,7 +89,7 @@
                     <span v-else class="text-gray-400">Non défini</span>
                   </div>
                 </td>
-                <td>{{ formatDate(document.createdAt) }}</td>
+                <td>{{ formatFrenchDate(document.createdAt) }}</td>
                 <td class="text-right">
                   <div class="flex justify-end gap-2">
                     <button
@@ -120,6 +120,7 @@ import { ref, computed, onMounted } from 'vue'
 import { useDocuments } from '~/composables/useDocuments'
 import { getFileIcon } from '~/utils/fileIcons'
 import { canPreviewDocument } from '~/utils/documentPreview'
+import { formatFrenchDate } from '~/utils/date'
 import DocumentPreviewModal from '~/components/DocumentPreviewModal.vue'
 import IconLucideFileSearch from '~icons/lucide/file-search'
 
@@ -178,15 +179,6 @@ const formatSize = (size) => {
 
 const documentIcon = (doc) => getFileIcon({ name: doc.filename || doc.name, mime: doc.mimeType })
 
-const formatDate = (date) => {
-  if (!date) return '—'
-  return new Intl.DateTimeFormat('fr-FR', {
-    year: 'numeric',
-    month: '2-digit',
-    day: '2-digit',
-  }).format(new Date(date))
-}
-
 const downloadDocument = (doc) => {
   if (!doc?.path) return
 
diff --git a/app/pages/models/components.vue b/app/pages/models/components.vue
index 80372f7..48c8a00 100644
--- a/app/pages/models/components.vue
+++ b/app/pages/models/components.vue
@@ -83,7 +83,7 @@
                   <td class="hidden md:table-cell">{{ model.description || '—' }}</td>
                   <td>{{ model.typeComposant?.name || 'Non défini' }}</td>
                   <td class="hidden xl:table-cell text-xs text-gray-500">{{ formatStructurePreview(model.structure) }}</td>
-                  <td class="hidden lg:table-cell text-xs text-gray-500">{{ formatDate(model.updatedAt || model.createdAt) }}</td>
+                  <td class="hidden lg:table-cell text-xs text-gray-500">{{ formatFrenchDate(model.updatedAt || model.createdAt) }}</td>
                   <td class="text-right space-x-2">
                     <button type="button" class="btn btn-sm btn-outline" @click="startEdit(model)">
                       Éditer
@@ -178,6 +178,7 @@ import { useComponentTypes } from '~/composables/useComponentTypes'
 import { useToast } from '~/composables/useToast'
 import ComponentModelStructureEditor from '~/components/ComponentModelStructureEditor.vue'
 import { formatStructurePreview } from '~/shared/modelUtils'
+import { formatFrenchDate } from '~/utils/date'
 import IconLucidePlus from '~icons/lucide/plus'
 import IconLucideLayers from '~icons/lucide/layers'
 
@@ -260,15 +261,6 @@ const filteredModels = computed(() => {
   })
 })
 
-const formatDate = (value) => {
-  if (!value) return '—'
-  return new Date(value).toLocaleDateString('fr-FR', {
-    day: '2-digit',
-    month: '2-digit',
-    year: 'numeric',
-  })
-}
-
 const refreshModels = async () => {
   if (selectedType.value === 'all') {
     await loadComponentModels()
diff --git a/app/pages/models/pieces.vue b/app/pages/models/pieces.vue
index ab75aea..2c31900 100644
--- a/app/pages/models/pieces.vue
+++ b/app/pages/models/pieces.vue
@@ -77,7 +77,7 @@
                   </td>
                   <td class="hidden md:table-cell">{{ model.description || '—' }}</td>
                   <td>{{ model.typePiece?.name || 'Non défini' }}</td>
-                  <td class="hidden lg:table-cell text-xs text-gray-500">{{ formatDate(model.updatedAt || model.createdAt) }}</td>
+                  <td class="hidden lg:table-cell text-xs text-gray-500">{{ formatFrenchDate(model.updatedAt || model.createdAt) }}</td>
                   <td class="text-right space-x-2">
                     <button type="button" class="btn btn-sm btn-outline" @click="startEdit(model)">
                       Éditer
@@ -169,6 +169,7 @@ import { usePieceModels } from '~/composables/usePieceModels'
 import { usePieceTypes } from '~/composables/usePieceTypes'
 import { useToast } from '~/composables/useToast'
 import { formatStructurePreview } from '~/shared/modelUtils'
+import { formatFrenchDate } from '~/utils/date'
 import IconLucidePlus from '~icons/lucide/plus'
 import IconLucidePackage from '~icons/lucide/package'
 
@@ -261,15 +262,6 @@ const filteredModels = computed(() => {
   })
 })
 
-const formatDate = (value) => {
-  if (!value) return '—'
-  return new Date(value).toLocaleDateString('fr-FR', {
-    day: '2-digit',
-    month: '2-digit',
-    year: 'numeric',
-  })
-}
-
 const refreshModels = async () => {
   if (selectedType.value === 'all') {
     await loadPieceModels()
diff --git a/app/utils/date.ts b/app/utils/date.ts
new file mode 100644
index 0000000..27c6d24
--- /dev/null
+++ b/app/utils/date.ts
@@ -0,0 +1,20 @@
+/**
+ * Formatte une date en respectant les conventions françaises (jj/mm/aaaa).
+ * Retourne "—" si la valeur est invalide ou absente.
+ */
+export const formatFrenchDate = (value: Date | string | number | null | undefined): string => {
+  if (value === null || value === undefined || value === '') {
+    return '—'
+  }
+
+  const date = value instanceof Date ? value : new Date(value)
+  if (Number.isNaN(date.getTime())) {
+    return '—'
+  }
+
+  return new Intl.DateTimeFormat('fr-FR', {
+    day: '2-digit',
+    month: '2-digit',
+    year: 'numeric',
+  }).format(date)
+}
diff --git a/dup-report.md b/dup-report.md
new file mode 100644
index 0000000..37b3239
--- /dev/null
+++ b/dup-report.md
@@ -0,0 +1,35 @@
+# Rapport de déduplication
+
+## DUP-001 · Score 92 · Formulaire de contact site
+- **Motif** : duplication à l’identique du bloc de champs de contact (nom, téléphone, adresse…) entre les modales de création et d’édition de site.
+- **Occurrences détectées** :
+  - `app/components/sites/SiteCreateModal.vue` — lignes 1-52 (bloc de formulaire remplacé par `<SiteContactFormFields />`).
+  - `app/components/sites/SiteEditModal.vue` — lignes 1-155 (même bloc de formulaire remplacé par `<SiteContactFormFields />`).
+- **Extraction** : nouveau composant `app/components/sites/SiteContactFormFields.vue` exposant la prop `form: SiteForm` (référence réactive vers l’objet du formulaire).
+- **Plan / Statut** : les deux modales importent désormais le composant partagé (`<SiteContactFormFields :form="..." />`), supprimant l’ancienne duplication. Aucun changement d’API publique côté modale.
+
+## DUP-002 · Score 95 · Éditeur de contraintes (composants/pièces)
+- **Motif** : logique et template identiques pour la gestion des groupes requis dans `TypeEditComponentRequirementsSection` et `TypeEditPieceRequirementsSection` (ajout/suppression, formulaires, cases à cocher).
+- **Occurrences détectées** :
+  - `app/components/TypeEditComponentRequirementsSection.vue` — lignes 1-94 (ancien template remplacé par `<RequirementListEditor />`).
+  - `app/components/TypeEditPieceRequirementsSection.vue` — lignes 1-94 (même duplication remplacée).
+- **Extraction** : composant générique `app/components/common/RequirementListEditor.vue` paramétrable via :
+  - `v-model` pour la liste de contraintes,
+  - `type-options`, `type-field` pour la clé d’association,
+  - `labels` (structure textuelle),
+  - `defaultRequirement`, `requiredFallback`, `minFallback`.
+- **Plan / Statut** : les deux sections n’hébergent plus de logique métier, se contentent de fournir les options/labels spécifiques. La structure, les watchers et les props exposés restent inchangés côté parent.
+
+## DUP-003 · Score 88 · Formatage de dates UI
+- **Motif** : fonctions utilitaires de formatage (`toLocaleDateString`/`Intl.DateTimeFormat`) recopiées dans plusieurs pages (catalogues modèles et documents).
+- **Occurrences détectées** :
+  - `app/pages/models/components.vue` — lignes 70-311 (affichage de la colonne « Modifié »).
+  - `app/pages/models/pieces.vue` — lignes 70-310.
+  - `app/pages/documents.vue` — lignes 90-188.
+- **Extraction** : utilitaire commun `app/utils/date.ts` exposant `formatFrenchDate(value: Date | string | number | null | undefined): string` avec gestion des valeurs nulles/invalides.
+- **Plan / Statut** : toutes les pages importent `formatFrenchDate` et l’utilisent directement en template. Plus de fonction locale dupliquée.
+
+## Couverture & suites
+- Les trois duplications les plus impactantes repérées ont été factorisées (>= 80 % du volume ciblé).
+- Les contrôles `npm run build` passent avec succès ; aucun changement fonctionnel attendu.
+- Aucune duplication résiduelle critique détectée dans le périmètre ciblé après refacto.