diff --git a/app/components/ConstructeurSelect.vue b/app/components/ConstructeurSelect.vue
index f34bcc6..2155573 100644
--- a/app/components/ConstructeurSelect.vue
+++ b/app/components/ConstructeurSelect.vue
@@ -63,14 +63,19 @@
             <label class="label"><span class="label-text">Nom</span></label>
             <input v-model="createForm.name" type="text" class="input input-bordered" required />
           </div>
-          <div class="form-control mb-3">
-            <label class="label"><span class="label-text">Email</span></label>
-            <input v-model="createForm.email" type="email" class="input input-bordered" placeholder="ex: contact@constructeur.com" />
-          </div>
-          <div class="form-control mb-3">
-            <label class="label"><span class="label-text">Téléphone</span></label>
-            <input v-model="createForm.phone" type="text" class="input input-bordered" placeholder="ex: 01 23 45 67 89" />
-          </div>
+          <FieldEmail
+            v-model="createForm.email"
+            class="mb-3"
+            label="Email"
+            placeholder="ex: contact@constructeur.com"
+            autocomplete="email"
+          />
+          <FieldPhone
+            v-model="createForm.phone"
+            class="mb-3"
+            label="Téléphone"
+            placeholder="ex: 01 23 45 67 89"
+          />
 
           <div class="modal-action">
             <button type="button" class="btn" @click="closeCreateModal">Annuler</button>
@@ -87,6 +92,8 @@
 
 <script setup>
 import { ref, watch, computed, onMounted, onBeforeUnmount } from 'vue'
+import FieldEmail from '~/components/form/FieldEmail.vue'
+import FieldPhone from '~/components/form/FieldPhone.vue'
 import { useConstructeurs } from '~/composables/useConstructeurs'
 import IconLucideChevronsUpDown from '~icons/lucide/chevrons-up-down'
 
diff --git a/app/components/form/FieldEmail.vue b/app/components/form/FieldEmail.vue
new file mode 100644
index 0000000..bf5dcf2
--- /dev/null
+++ b/app/components/form/FieldEmail.vue
@@ -0,0 +1,112 @@
+<template>
+  <div class="form-control">
+    <label v-if="label" class="label" :for="inputId">
+      <span class="label-text">{{ label }}</span>
+      <span v-if="required" class="label-text-alt text-error">*</span>
+    </label>
+    <input
+      :id="inputId"
+      :value="modelValue"
+      type="email"
+      class="input input-bordered"
+      :class="{ 'input-error': Boolean(errorMessage) }"
+      :placeholder="placeholder"
+      :required="required"
+      :disabled="disabled"
+      :name="name"
+      :autocomplete="autocomplete"
+      :pattern="EMAIL_INPUT_PATTERN"
+      :aria-invalid="Boolean(errorMessage)"
+      :aria-describedby="describedBy"
+      @input="onInput"
+      @blur="onBlur"
+      @focus="(event) => emit('focus', event)"
+    />
+    <p v-if="help" :id="helpId" class="mt-2 text-xs text-gray-500">
+      {{ help }}
+    </p>
+    <p v-if="errorMessage" :id="errorId" class="mt-2 text-xs text-error">
+      {{ errorMessage }}
+    </p>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { computed, useId } from 'vue'
+import { normalizeEmail } from '~/utils/formatters/email'
+import { EMAIL_INPUT_PATTERN, EMAIL_VALIDATION_ERROR, emailSchema } from '~/shared/validation/email'
+
+type Emits = {
+  (event: 'update:modelValue', value: string): void
+  (event: 'blur', value: FocusEvent): void
+  (event: 'focus', value: FocusEvent): void
+}
+
+const emit = defineEmits<Emits>()
+
+const props = withDefaults(
+  defineProps<{
+    modelValue: string
+    label?: string
+    required?: boolean
+    error?: string | null
+    help?: string | null
+    placeholder?: string
+    disabled?: boolean
+    name?: string
+    id?: string
+    autocomplete?: string
+    normalizeOnBlur?: boolean
+    validateOnBlur?: boolean
+  }>(),
+  {
+    modelValue: '',
+    label: 'Email',
+    required: false,
+    error: null,
+    help: null,
+    placeholder: 'ex: contact@example.com',
+    disabled: false,
+    name: undefined,
+    id: undefined,
+    autocomplete: 'email',
+    normalizeOnBlur: false,
+    validateOnBlur: false,
+  }
+)
+
+const fallbackId = useId()
+const inputId = computed(() => props.id || fallbackId)
+const helpId = computed(() => (props.help ? `${inputId.value}-help` : undefined))
+const errorMessage = computed(() => props.error || null)
+const errorId = computed(() => (errorMessage.value ? `${inputId.value}-error` : undefined))
+const describedBy = computed(() => [helpId.value, errorId.value].filter(Boolean).join(' ') || undefined)
+
+const onInput = (event: Event) => {
+  const target = event.target as HTMLInputElement
+  emit('update:modelValue', target.value)
+}
+
+const onBlur = (event: FocusEvent) => {
+  const target = event.target as HTMLInputElement
+
+  if (props.normalizeOnBlur) {
+    const normalized = normalizeEmail(target.value)
+    if (normalized !== target.value) {
+      target.value = normalized
+      emit('update:modelValue', normalized)
+    }
+  }
+
+  if (props.validateOnBlur && !errorMessage.value) {
+    const validation = emailSchema.validate(target.value)
+    if (!validation.valid) {
+      target.setCustomValidity(EMAIL_VALIDATION_ERROR)
+    } else {
+      target.setCustomValidity('')
+    }
+  }
+
+  emit('blur', event)
+}
+</script>
diff --git a/app/components/form/FieldPhone.vue b/app/components/form/FieldPhone.vue
new file mode 100644
index 0000000..872aa30
--- /dev/null
+++ b/app/components/form/FieldPhone.vue
@@ -0,0 +1,113 @@
+<template>
+  <div class="form-control">
+    <label v-if="label" class="label" :for="inputId">
+      <span class="label-text">{{ label }}</span>
+      <span v-if="required" class="label-text-alt text-error">*</span>
+    </label>
+    <input
+      :id="inputId"
+      :value="modelValue"
+      type="tel"
+      class="input input-bordered"
+      :class="{ 'input-error': Boolean(errorMessage) }"
+      :placeholder="placeholder"
+      :required="required"
+      :disabled="disabled"
+      :name="name"
+      :autocomplete="autocomplete"
+      :pattern="PHONE_INPUT_PATTERN"
+      inputmode="tel"
+      :aria-invalid="Boolean(errorMessage)"
+      :aria-describedby="describedBy"
+      @input="onInput"
+      @blur="onBlur"
+      @focus="(event) => emit('focus', event)"
+    />
+    <p v-if="help" :id="helpId" class="mt-2 text-xs text-gray-500">
+      {{ help }}
+    </p>
+    <p v-if="errorMessage" :id="errorId" class="mt-2 text-xs text-error">
+      {{ errorMessage }}
+    </p>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { computed, useId } from 'vue'
+import { formatPhone } from '~/utils/formatters/phone'
+import { PHONE_INPUT_PATTERN, PHONE_VALIDATION_ERROR, phoneSchema } from '~/shared/validation/phone'
+
+type Emits = {
+  (event: 'update:modelValue', value: string): void
+  (event: 'blur', value: FocusEvent): void
+  (event: 'focus', value: FocusEvent): void
+}
+
+const emit = defineEmits<Emits>()
+
+const props = withDefaults(
+  defineProps<{
+    modelValue: string
+    label?: string
+    required?: boolean
+    error?: string | null
+    help?: string | null
+    placeholder?: string
+    disabled?: boolean
+    name?: string
+    id?: string
+    autocomplete?: string
+    normalizeOnBlur?: boolean
+    validateOnBlur?: boolean
+  }>(),
+  {
+    modelValue: '',
+    label: 'Téléphone',
+    required: false,
+    error: null,
+    help: null,
+    placeholder: 'Ex: 06 00 00 00 00',
+    disabled: false,
+    name: undefined,
+    id: undefined,
+    autocomplete: 'tel',
+    normalizeOnBlur: false,
+    validateOnBlur: false,
+  }
+)
+
+const fallbackId = useId()
+const inputId = computed(() => props.id || fallbackId)
+const helpId = computed(() => (props.help ? `${inputId.value}-help` : undefined))
+const errorMessage = computed(() => props.error || null)
+const errorId = computed(() => (errorMessage.value ? `${inputId.value}-error` : undefined))
+const describedBy = computed(() => [helpId.value, errorId.value].filter(Boolean).join(' ') || undefined)
+
+const onInput = (event: Event) => {
+  const target = event.target as HTMLInputElement
+  emit('update:modelValue', target.value)
+}
+
+const onBlur = (event: FocusEvent) => {
+  const target = event.target as HTMLInputElement
+
+  if (props.normalizeOnBlur) {
+    const formatted = formatPhone(target.value)
+    if (formatted !== target.value) {
+      target.value = formatted
+      emit('update:modelValue', formatted)
+    }
+  }
+
+  if (props.validateOnBlur && !errorMessage.value) {
+    const validation = phoneSchema.validate(target.value)
+    if (!validation.valid) {
+      target.setCustomValidity(PHONE_VALIDATION_ERROR)
+    } else {
+      target.setCustomValidity('')
+    }
+  }
+
+  emit('blur', event)
+}
+</script>
diff --git a/app/components/sites/SiteContactFormFields.vue b/app/components/sites/SiteContactFormFields.vue
index 5a26f49..f2c25ab 100644
--- a/app/components/sites/SiteContactFormFields.vue
+++ b/app/components/sites/SiteContactFormFields.vue
@@ -13,18 +13,7 @@
       />
     </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>
+    <FieldPhone v-model="form.contactPhone" required />
 
     <div class="form-control">
       <label class="label">
@@ -73,6 +62,8 @@
 import { toRefs } from 'vue'
 import type { PropType } from 'vue'
 
+import FieldPhone from '~/components/form/FieldPhone.vue'
+
 type SiteForm = {
   contactName: string
   contactPhone: string
diff --git a/app/pages/constructeurs.vue b/app/pages/constructeurs.vue
index 74f47fa..3718608 100644
--- a/app/pages/constructeurs.vue
+++ b/app/pages/constructeurs.vue
@@ -80,14 +80,8 @@
             <input v-model="form.name" type="text" 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">Email</span></label>
-              <input v-model="form.email" type="email" class="input input-bordered" />
-            </div>
-            <div class="form-control">
-              <label class="label"><span class="label-text">Téléphone</span></label>
-              <input v-model="form.phone" type="text" class="input input-bordered" />
-            </div>
+            <FieldEmail v-model="form.email" label="Email" />
+            <FieldPhone v-model="form.phone" label="Téléphone" />
           </div>
           <div class="modal-action">
             <button type="button" class="btn" @click="closeModal">Annuler</button>
@@ -104,6 +98,8 @@
 
 <script setup>
 import { ref, computed } from 'vue'
+import FieldEmail from '~/components/form/FieldEmail.vue'
+import FieldPhone from '~/components/form/FieldPhone.vue'
 import { useConstructeurs } from '~/composables/useConstructeurs'
 import { useToast } from '~/composables/useToast'
 import IconLucidePlus from '~icons/lucide/plus'
diff --git a/app/pages/index.vue b/app/pages/index.vue
index 97faf41..f0832e0 100644
--- a/app/pages/index.vue
+++ b/app/pages/index.vue
@@ -212,74 +212,7 @@
             />
           </div>
 
-          <div class="form-control">
-            <label class="label">
-              <span class="label-text">Nom du contact</span>
-            </label>
-            <input 
-              v-model="newSite.contactName" 
-              type="text" 
-              placeholder="Nom et prénom" 
-              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">Téléphone</span>
-              </label>
-              <input 
-                v-model="newSite.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="newSite.contactAddress" 
-                type="text" 
-                placeholder="Adresse complète" 
-                class="input input-bordered" 
-                required
-              />
-            </div>
-          </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="newSite.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="newSite.contactCity" 
-                type="text" 
-                placeholder="Ville" 
-                class="input input-bordered" 
-                required
-              />
-            </div>
-          </div>
+          <SiteContactFormFields :form="newSite" />
 
           <div class="modal-action">
             <button type="button" @click="showAddSiteModal = false" class="btn btn-outline">
@@ -386,6 +319,7 @@
 
 <script setup>
 import { ref, reactive, onMounted, computed } from 'vue'
+import SiteContactFormFields from '~/components/sites/SiteContactFormFields.vue'
 import { useSites } from '~/composables/useSites'
 import { useMachineTypesApi } from '~/composables/useMachineTypesApi'
 import { useMachines } from '~/composables/useMachines'
diff --git a/app/shared/validation/email.ts b/app/shared/validation/email.ts
new file mode 100644
index 0000000..19b0f97
--- /dev/null
+++ b/app/shared/validation/email.ts
@@ -0,0 +1,34 @@
+import { normalizeEmail } from '~/utils/formatters/email'
+
+export const EMAIL_INPUT_PATTERN = '[^\s@]+'
+
+const EMAIL_VALIDATION_PATTERN = /^[^\s@]+@[^\s@]+\.[^\s@]+$/
+
+export type EmailValidationResult = {
+  valid: boolean
+  error?: string
+}
+
+export const EMAIL_VALIDATION_ERROR = 'Adresse email invalide'
+
+/**
+ * Minimal email schema to align validation logic across the UI.
+ */
+export const emailSchema = {
+  pattern: EMAIL_VALIDATION_PATTERN,
+  message: EMAIL_VALIDATION_ERROR,
+  validate(value: string): EmailValidationResult {
+    const normalized = normalizeEmail(value)
+    if (!normalized) {
+      return { valid: true }
+    }
+
+    if (EMAIL_VALIDATION_PATTERN.test(normalized)) {
+      return { valid: true }
+    }
+
+    return { valid: false, error: EMAIL_VALIDATION_ERROR }
+  },
+}
+
+export const isEmailValid = (value: string): boolean => emailSchema.validate(value).valid
diff --git a/app/shared/validation/phone.ts b/app/shared/validation/phone.ts
new file mode 100644
index 0000000..a7577b2
--- /dev/null
+++ b/app/shared/validation/phone.ts
@@ -0,0 +1,36 @@
+import { normalizePhone } from '~/utils/formatters/phone'
+
+/** Pattern used for the HTML input `pattern` attribute on phone fields. */
+export const PHONE_INPUT_PATTERN = '[0-9+ ]*'
+
+const PHONE_VALIDATION_PATTERN = /^\+?\d{7,15}$/
+
+export type PhoneValidationResult = {
+  valid: boolean
+  error?: string
+}
+
+export const PHONE_VALIDATION_ERROR = 'Numéro de téléphone invalide'
+
+/**
+ * Lightweight phone schema mirroring the API used across the app.
+ */
+export const phoneSchema = {
+  pattern: PHONE_VALIDATION_PATTERN,
+  message: PHONE_VALIDATION_ERROR,
+  validate(value: string): PhoneValidationResult {
+    const normalized = normalizePhone(value)
+    if (!normalized) {
+      // Empty values are considered valid; required-ness is handled by the caller.
+      return { valid: true }
+    }
+
+    if (PHONE_VALIDATION_PATTERN.test(normalized)) {
+      return { valid: true }
+    }
+
+    return { valid: false, error: PHONE_VALIDATION_ERROR }
+  },
+}
+
+export const isPhoneValid = (value: string): boolean => phoneSchema.validate(value).valid
diff --git a/app/utils/formatters/email.ts b/app/utils/formatters/email.ts
new file mode 100644
index 0000000..f9978d9
--- /dev/null
+++ b/app/utils/formatters/email.ts
@@ -0,0 +1,37 @@
+/**
+ * Basic helpers around email formatting shared across components and composables.
+ */
+
+/**
+ * Normalises an email by trimming whitespace and converting it to lowercase.
+ */
+export const normalizeEmail = (rawValue: string): string => {
+  const value = (rawValue || '').trim()
+  return value.toLowerCase()
+}
+
+/**
+ * Masks an email address by hiding the characters between the first and last letters
+ * of the local part. Useful for UI fragments where we want partial obfuscation.
+ */
+export const maskEmail = (rawValue: string): string => {
+  const value = normalizeEmail(rawValue)
+  if (!value) {
+    return ''
+  }
+
+  const [localPart, domain] = value.split('@')
+  if (!domain) {
+    return value
+  }
+
+  if (localPart.length <= 2) {
+    return `${localPart[0] ?? ''}·@${domain}`
+  }
+
+  const start = localPart[0]
+  const end = localPart.slice(-1)
+  const masked = '·'.repeat(Math.max(0, localPart.length - 2))
+
+  return `${start}${masked}${end}@${domain}`
+}
diff --git a/app/utils/formatters/phone.ts b/app/utils/formatters/phone.ts
new file mode 100644
index 0000000..2eb4a27
--- /dev/null
+++ b/app/utils/formatters/phone.ts
@@ -0,0 +1,67 @@
+/**
+ * Utilities to normalize and format phone numbers without relying on external libraries.
+ * The helpers keep the behaviour permissive to avoid breaking existing flows while
+ * still providing a single place where formatting rules live.
+ */
+
+/** Matches characters that should be kept when normalising a phone number. */
+const PHONE_CHAR_PATTERN = /[^+\d]/g
+
+/**
+ * Normalises a phone number by trimming whitespace, removing spacing/separators and
+ * converting international prefixes written with `00` to their `+` variant.
+ */
+export const normalizePhone = (rawValue: string): string => {
+  const trimmed = (rawValue || '').trim()
+  if (!trimmed) {
+    return ''
+  }
+
+  const cleaned = trimmed.replace(PHONE_CHAR_PATTERN, '')
+  if (cleaned.startsWith('00')) {
+    return `+${cleaned.slice(2)}`
+  }
+
+  return cleaned
+}
+
+/**
+ * Formats a phone number by grouping digits by two while keeping any international
+ * prefix. The function remains tolerant to partially entered numbers.
+ */
+export const formatPhone = (rawValue: string): string => {
+  const normalized = normalizePhone(rawValue)
+  if (!normalized) {
+    return ''
+  }
+
+  const hasInternationalPrefix = normalized.startsWith('+')
+  const prefix = hasInternationalPrefix ? normalized.slice(0, 1) : ''
+  const digits = hasInternationalPrefix ? normalized.slice(1) : normalized
+
+  const groups = digits.match(/.{1,2}/g) ?? []
+  const grouped = groups.join(' ')
+
+  return prefix ? `${prefix}${grouped ? ' ' : ''}${grouped}` : grouped
+}
+
+/**
+ * Masks a phone number for display purposes by replacing the middle digits with ·.
+ * Useful for UI fragments where the full number should not be exposed.
+ */
+export const maskPhone = (rawValue: string): string => {
+  const normalized = normalizePhone(rawValue)
+  if (!normalized) {
+    return ''
+  }
+
+  if (normalized.length <= 4) {
+    return normalized
+  }
+
+  const start = normalized.slice(0, 2)
+  const end = normalized.slice(-2)
+  const maskedMiddle = '·'.repeat(Math.max(0, normalized.length - 4))
+
+  return `${start}${maskedMiddle}${end}`
+}
diff --git a/micro-dup-report.md b/micro-dup-report.md
new file mode 100644
index 0000000..3a596bd
--- /dev/null
+++ b/micro-dup-report.md
@@ -0,0 +1,100 @@
+# Micro duplication report
+
+## MDUP-001 · Score 92 · Type form-field
+- **Pattern**: Champ téléphone complet (label, input `tel`, placeholder "Ex: 06 00 00 00 00", règles de validation implicites).
+- **Occurrences**:
+  - `app/components/ConstructeurSelect.vue` L70-L86 — modal de création de constructeur. 【F:app/components/ConstructeurSelect.vue†L66-L88】
+  - `app/pages/constructeurs.vue` L82-L92 — formulaire de création/édition. 【F:app/pages/constructeurs.vue†L80-L92】
+  - `app/components/sites/SiteContactFormFields.vue` L1-L57 — bloc de formulaire de contact. 【F:app/components/sites/SiteContactFormFields.vue†L1-L58】
+  - `app/pages/index.vue` L200-L224 — création rapide d’un site. 【F:app/pages/index.vue†L200-L224】
+- **Extraction**: ✅ `app/components/form/FieldPhone.vue` (props : `modelValue`, `label`, `required`, `error`, `help`, `placeholder`, `disabled`, `normalizeOnBlur`, `validateOnBlur`). 【F:app/components/form/FieldPhone.vue†L1-L113】
+- **Plan de remplacement**: Remplacer chaque bloc par `<FieldPhone v-model="..." />`. Call-sites déjà migrés ci-dessus.
+
+## MDUP-002 · Score 90 · Type form-field
+- **Pattern**: Champ email (label « Email », input `type="email"`, placeholder d’exemple, aucune validation mutualisée).
+- **Occurrences**:
+  - `app/components/ConstructeurSelect.vue` L66-L84. 【F:app/components/ConstructeurSelect.vue†L66-L86】
+  - `app/pages/constructeurs.vue` L82-L90. 【F:app/pages/constructeurs.vue†L80-L92】
+- **Extraction**: ✅ `app/components/form/FieldEmail.vue` avec normalisation et validation partagée. 【F:app/components/form/FieldEmail.vue†L1-L112】
+- **Plan de remplacement**: Blocs remplacés par `<FieldEmail />` sur les deux formulaires.
+
+## MDUP-003 · Score 88 · Type form-field
+- **Pattern**: Groupe « informations de contact site » (Nom du contact, Téléphone, Adresse, Code postal, Ville) répliqué.
+- **Occurrences**:
+  - `app/components/sites/SiteContactFormFields.vue` (composant existant). 【F:app/components/sites/SiteContactFormFields.vue†L1-L58】
+  - `app/pages/index.vue` L200-L223 — doublait le bloc dans le modal rapide. 【F:app/pages/index.vue†L200-L223】
+- **Extraction**: ✅ Réutilisation directe du composant `SiteContactFormFields` sur la page index. Aucun changement d’API.
+- **Plan de remplacement**: Remplacer le bloc du modal par `<SiteContactFormFields :form="newSite" />` (effectué).
+
+## MDUP-004 · Score 86 · Type tiny-logic
+- **Pattern**: Liaisons `computed({ get, set })` pour faire transiter `v-model` entre props et emits.
+- **Occurrences**:
+  - `app/components/TypeEditComponentRequirementsSection.vue` L45-L59. 【F:app/components/TypeEditComponentRequirementsSection.vue†L45-L59】
+  - `app/components/TypeEditPieceRequirementsSection.vue` L45-L59. 【F:app/components/TypeEditPieceRequirementsSection.vue†L45-L59】
+  - `app/components/common/RequirementListEditor.vue` L198-L203. 【F:app/components/common/RequirementListEditor.vue†L198-L204】
+  - `app/components/TypeEditCustomFieldsSection.vue` L163-L168. 【F:app/components/TypeEditCustomFieldsSection.vue†L163-L168】
+  - `app/components/TypeEditBaseInfoSection.vue` L82-L102. 【F:app/components/TypeEditBaseInfoSection.vue†L82-L102】
+  - `app/components/sites/SiteEditModal.vue` L140-L154. 【F:app/components/sites/SiteEditModal.vue†L140-L154】
+- **Extraction proposée**: `app/composables/useControlledModel.ts` retournant `{ model }` via `useVModel` maison (prop name configurable, options pour defaultValue et transform).
+- **Plan**: 1) Introduire le composable, 2) remapper les computed existantes, 3) supprimer le code duplicatif.
+
+## MDUP-005 · Score 82 · Type tiny-logic
+- **Pattern**: Fonctions `createDefaultRequirement` quasi identiques (seuls champs `minCount`, `required` et `type*Id` changent).
+- **Occurrences**:
+  - `app/components/TypeEditComponentRequirementsSection.vue` L61-L69. 【F:app/components/TypeEditComponentRequirementsSection.vue†L61-L69】
+  - `app/components/TypeEditPieceRequirementsSection.vue` L61-L69. 【F:app/components/TypeEditPieceRequirementsSection.vue†L61-L69】
+- **Extraction proposée**: `app/shared/requirements/defaults.ts` exportant `createRequirementDefaults({ min, required, typeKey })`.
+- **Plan**: Mutualiser la fonction, la paramétrer par options, adapter les deux sections.
+
+## MDUP-006 · Score 80 · Type tiny-logic
+- **Pattern**: Effet `onMounted` identique qui teste la liste et déclenche `loadX` si vide.
+- **Occurrences**:
+  - `app/components/TypeEditComponentRequirementsSection.vue` L89-L93. 【F:app/components/TypeEditComponentRequirementsSection.vue†L89-L93】
+  - `app/components/TypeEditPieceRequirementsSection.vue` L89-L93. 【F:app/components/TypeEditPieceRequirementsSection.vue†L89-L93】
+- **Extraction proposée**: `useEnsureOptionsLoaded(optionsRef, loader)` dans `app/composables/` pour encapsuler le check + chargement (support async/await, options pour refetch forcé).
+- **Plan**: Appeler le composable dans les deux sections et supprimer le code inline.
+
+## MDUP-007 · Score 78 · Type ui-fragment
+- **Pattern**: Pieds de modale avec boutons « Annuler » + primaire + spinner optionnel.
+- **Occurrences**:
+  - `app/components/ConstructeurSelect.vue` L80-L86. 【F:app/components/ConstructeurSelect.vue†L80-L86】
+  - `app/pages/constructeurs.vue` L86-L91. 【F:app/pages/constructeurs.vue†L86-L91】
+  - `app/components/sites/SiteCreateModal.vue` L21-L27. 【F:app/components/sites/SiteCreateModal.vue†L21-L27】
+  - `app/components/sites/SiteEditModal.vue` L82-L89. 【F:app/components/sites/SiteEditModal.vue†L82-L89】
+  - `app/pages/index.vue` L217-L223 & L306-L312. 【F:app/pages/index.vue†L215-L313】
+- **Extraction proposée**: `app/components/common/ModalActions.vue` avec props `primaryLabel`, `primaryLoading`, `onCancel`, slots secondaires.
+- **Plan**: Introduire le composant, refactorer chaque modal pour l’utiliser, garantir les mêmes classes Tailwind.
+
+## MDUP-008 · Score 76 · Type ui-fragment
+- **Pattern**: Gabarit de modale (div `.modal` + `.modal-box`, titre `<h3>`, formulaire, actions).
+- **Occurrences**:
+  - `app/components/ConstructeurSelect.vue` L58-L89. 【F:app/components/ConstructeurSelect.vue†L58-L89】
+  - `app/components/sites/SiteCreateModal.vue` L1-L31. 【F:app/components/sites/SiteCreateModal.vue†L1-L31】
+  - `app/components/sites/SiteEditModal.vue` L1-L94. 【F:app/components/sites/SiteEditModal.vue†L1-L94】
+  - `app/pages/index.vue` L192-L315 (modales site/machine). 【F:app/pages/index.vue†L192-L315】
+- **Extraction proposée**: `app/components/common/ModalShell.vue` gérant l’ouverture, le titre, le footer via slots (`header`, `default`, `footer`).
+- **Plan**: Remplacer chaque squelette par le nouveau composant tout en conservant la structure DOM requise par DaisyUI.
+
+## MDUP-009 · Score 74 · Type form-field
+- **Pattern**: Champ texte simple (label, input type="text", `required`) pour les « Nom » & co.
+- **Occurrences**:
+  - `app/components/ConstructeurSelect.vue` L62-L65. 【F:app/components/ConstructeurSelect.vue†L62-L66】
+  - `app/pages/constructeurs.vue` L78-L81. 【F:app/pages/constructeurs.vue†L78-L81】
+  - `app/components/sites/SiteCreateModal.vue` L6-L17. 【F:app/components/sites/SiteCreateModal.vue†L5-L17】
+  - `app/components/sites/SiteEditModal.vue` L8-L20. 【F:app/components/sites/SiteEditModal.vue†L8-L20】
+  - `app/components/TypeEditBaseInfoSection.vue` L8-L48. 【F:app/components/TypeEditBaseInfoSection.vue†L8-L48】
+- **Extraction proposée**: `app/components/form/FieldText.vue` avec props `type`, `label`, `required`, `maxlength`, `placeholder`, support `modelModifiers`.
+- **Plan**: Introduire le composant, migrer progressivement les champs texte, ajouter un paramètre pour afficher l’étoile obligatoire.
+
+## MDUP-010 · Score 72 · Type ui-fragment
+- **Pattern**: Bouton primaire avec indicateur de chargement inline (`<span class="loading loading-spinner loading-xs mr-2">`).
+- **Occurrences**:
+  - `app/components/ConstructeurSelect.vue` L82-L84. 【F:app/components/ConstructeurSelect.vue†L82-L84】
+  - `app/pages/constructeurs.vue` L88-L89. 【F:app/pages/constructeurs.vue†L88-L90】
+  - `app/components/sites/SiteEditModal.vue` L86-L88. 【F:app/components/sites/SiteEditModal.vue†L86-L88】
+- **Extraction proposée**: `app/components/common/LoadingButton.vue` gérant les variantes (`primary`, `outline`), le spinner et le label via slots.
+- **Plan**: Remplacer les boutons concernés par le composant, propager `loading` & `disabled` automatiquement.
+
+## Annexes
+- **Validations centralisées**: `app/shared/validation/phone.ts` & `app/shared/validation/email.ts` fournissent désormais des schémas communs. 【F:app/shared/validation/phone.ts†L1-L36】【F:app/shared/validation/email.ts†L1-L34】
+- **Formatters communs**: `app/utils/formatters/phone.ts` et `app/utils/formatters/email.ts` proposent les helpers associés. 【F:app/utils/formatters/phone.ts†L1-L67】【F:app/utils/formatters/email.ts†L1-L37】