chore : bump version to v1.9.12

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.dockerignore

@@ -2,10 +2,10 @@
 .gitea
 .env.local
 .env.test
-docker/
-deploy/docker/docker-compose.prod.yml
-deploy/docker/deploy.sh
-deploy/docker/.env.example
+infra/dev/
+infra/prod/docker-compose.yml
+infra/prod/deploy.sh
+infra/prod/.env.example
 frontend/node_modules
 frontend/.nuxt
 frontend/.output

.gitea/workflows/auto-tag-develop.yml

@@ -16,7 +16,7 @@ jobs:
           token: ${{ secrets.REGISTRY_TOKEN }}
           persist-credentials: true
 
-      - name: Create next tag from VERSION
+      - name: Create next tag from config/version.yaml
         shell: bash
         run: |
           set -euo pipefail
@@ -28,18 +28,18 @@ jobs:
           fi
 
           changed_version=false
-          if git diff --name-only "${{ gitea.event.before }}" "${{ gitea.event.after }}" | grep -q '^VERSION$'; then
+          if git diff --name-only "${{ gitea.event.before }}" "${{ gitea.event.after }}" | grep -q '^config/version\.yaml$'; then
             changed_version=true
           fi
 
           read_version() {
-            cat VERSION | tr -d '[:space:]'
+            awk -F': *' '/app\.version:/{print $2}' config/version.yaml | tr -d '[:space:]' | tr -d "'\""
           }
 
           if $changed_version; then
             version="$(read_version)"
             if ! [[ "$version" =~ ^[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
-              echo "Invalid version in VERSION: $version" >&2
+              echo "Invalid version in version.yaml: $version" >&2
               exit 1
             fi
           else
@@ -52,10 +52,10 @@ jobs:
               version="${major}.${minor}.$((patch + 1))"
             fi
 
-            echo "$version" > VERSION
+            printf "parameters:\\n    app.version: '%s'\\n" "$version" > config/version.yaml
             git config user.name "gitea-actions"
             git config user.email "gitea-actions@local"
-            git add VERSION
+            git add config/version.yaml
             git commit -m "chore : bump version to v$version" || true
             git push origin develop || true
           fi

.gitea/workflows/build-docker.yml

@@ -19,7 +19,7 @@ jobs:
       - name: Build Docker image
         run: |
           docker build \
-            -f deploy/docker/Dockerfile.prod \
+            -f infra/prod/Dockerfile \
             -t gitea.malio.fr/malio-dev/inventory:${{ gitea.ref_name }} \
             -t gitea.malio.fr/malio-dev/inventory:latest \
             .

.gitea/workflows/release-artefact.yml

@@ -1,67 +0,0 @@
-name: Build Release Artefact
-
-on:
-  push:
-    tags:
-      - "v*"
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-        with:
-          fetch-depth: 0
-          persist-credentials: false
-
-      - name: Setup PHP
-        uses: shivammathur/setup-php@v2
-        with:
-          php-version: "8.4"
-          extensions: mbstring, intl, pdo_pgsql, xml, curl, zip, gd
-
-      - name: Setup Node
-        uses: actions/setup-node@v4
-        with:
-          node-version: "lts/*"
-
-      - name: Install backend deps (prod)
-        env:
-          APP_ENV: prod
-          APP_DEBUG: "0"
-        run: composer install --no-dev --optimize-autoloader --no-interaction --no-scripts
-
-      - name: Build frontend (static)
-        run: |
-          cd frontend
-          npm ci
-          CI=1 NUXT_TELEMETRY_DISABLED=1 NUXT_PUBLIC_API_BASE_URL=/api NUXT_PUBLIC_APP_BASE=/ npm run generate
-          test -f .output/public/index.html
-
-      - name: Build artefact
-        shell: bash
-        run: |
-          set -euo pipefail
-          mkdir -p release
-          tar -czf "release/inventory-${GITHUB_REF_NAME}.tar.gz" \
-            .env \
-            bin \
-            config \
-            migrations \
-            public \
-            src \
-            templates \
-            vendor \
-            composer.json \
-            composer.lock \
-            symfony.lock \
-            VERSION \
-            frontend/.output
-
-      - name: Create Release
-        uses: softprops/action-gh-release@v2
-        with:
-          files: release/inventory-${{ github.ref_name }}.tar.gz
-        env:
-          GITHUB_TOKEN: ${{ secrets.REGISTRY_TOKEN }}

.gitignore

@@ -20,7 +20,7 @@
 ###< phpunit/phpunit ###
 
 ###> docker ###
-docker/.env.docker.local
+infra/dev/.env.docker.local
 ###< docker ###
 ###> migration archives ###
 /_archives/

README.md

@@ -57,7 +57,7 @@ make start
 make install
 ```
 
-> Si `make start` échoue sur le port de la BDD, modifier `POSTGRES_PORT` dans `docker/.env.docker.local`.
+> Si `make start` échoue sur le port de la BDD, modifier `POSTGRES_PORT` dans `infra/dev/.env.docker.local`.
 
 ### Que fait `make install` ?
 
@@ -254,7 +254,7 @@ Configuration PhpStorm / VSCode :
 - **Port** : `8081`
 - **Path mapping** : racine du projet → `/var/www/html`
 
-> Sous WSL, modifier `XDEBUG_CLIENT_HOST` dans `docker/.env.docker.local` avec votre IP locale.
+> Sous WSL, modifier `XDEBUG_CLIENT_HOST` dans `infra/dev/.env.docker.local` avec votre IP locale.
 
 ## Git
 

VERSION

@@ -1 +0,0 @@
-1.9.7

config/packages/api_platform.yaml

@@ -1,7 +1,7 @@
 api_platform:
     title: Inventory API
     description: API de gestion d'inventaire industriel — machines, pièces, composants, produits.
-    version: 1.9.1
+    version: 1.9.6
     defaults:
         stateless: false
         cache_headers:

config/packages/security.yaml

@@ -55,6 +55,7 @@ security:
         - { path: ^/api/admin, roles: ROLE_ADMIN }
         - { path: ^/api/docs, roles: PUBLIC_ACCESS }
         - { path: ^/api/health$, roles: PUBLIC_ACCESS }
+        - { path: ^/api/maintenance/check$, roles: PUBLIC_ACCESS }
         - { path: ^/_mcp, roles: ROLE_USER }
         - { path: ^/docs, roles: PUBLIC_ACCESS }
         - { path: ^/contexts, roles: PUBLIC_ACCESS }

config/version.yaml

@@ -0,0 +1,2 @@
+parameters:
+    app.version: '1.9.12'

deploy/nginx/inventory-docker.conf

@@ -1,13 +0,0 @@
-server {
-    listen 80;
-    listen [::]:80;
-    server_name inventory.malio-dev.fr;
-
-    location / {
-        proxy_pass http://127.0.0.1:8080;
-        proxy_set_header Host $host;
-        proxy_set_header X-Real-IP $remote_addr;
-        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
-        proxy_set_header X-Forwarded-Proto $scheme;
-    }
-}

docker-compose.yml

@@ -2,7 +2,7 @@ services:
   web:
     container_name: php-${DOCKER_APP_NAME}-apache
     build:
-      context: ./docker/php
+      context: ./infra/dev
       dockerfile: Dockerfile
       args:
         DOCKER_PHP_VERSION: ${DOCKER_PHP_VERSION}
@@ -20,9 +20,9 @@ services:
       - ~/.cache:/var/www/.cache # Pour la cache de composer
       - ~/.config:/var/www/.config # Pour la config de yarn
       - ~/.composer:/var/www/.composer # Pour la config de composer
-      - ./docker/php/config/php.ini:/usr/local/etc/php/php.ini
-      - ./docker/php/config/vhost.conf:/etc/apache2/sites-available/000-default.conf
-      - ./docker/php/config/docker-php-ext-xdebug.ini:/usr/local/etc/php/conf.d/docker-php-ext-xdebug.ini
+      - ./infra/dev/php.ini:/usr/local/etc/php/php.ini
+      - ./infra/dev/vhost.conf:/etc/apache2/sites-available/000-default.conf
+      - ./infra/dev/xdebug.ini:/usr/local/etc/php/conf.d/docker-php-ext-xdebug.ini
       - ./LOG:/var/www/html/LOG
       - ./LOG/logs_apache:/var/log/apache2/
     extra_hosts:

docs/superpowers/plans/2026-04-02-machine-context-fields-backend.md

@@ -0,0 +1,841 @@
+# Machine Context Custom Fields — Backend Plan
+
+> **For agentic workers:** REQUIRED SUB-SKILL: Use superpowers:subagent-driven-development (recommended) or superpowers:executing-plans to implement this plan task-by-task. Steps use checkbox (`- [ ]`) syntax for tracking.
+> **Parallel plan:** This is the backend half. The frontend plan is at `2026-04-02-machine-context-fields-frontend.md`. Both can run in parallel on separate worktrees — they share no files.
+
+**Goal:** Add `machineContextOnly` flag on `CustomField`, link FKs on `CustomFieldValue`, structure controller normalization, upsert support, clone support, and tests.
+
+**Architecture:** `CustomField.machineContextOnly` flags definitions. `CustomFieldValue` gets nullable FKs to `MachineComponentLink`/`MachinePieceLink`. The structure response returns `contextCustomFields` and `contextCustomFieldValues` per link. Upsert and clone are extended.
+
+**Tech Stack:** Symfony 8, Doctrine ORM, API Platform 4, PostgreSQL 16, PHPUnit 12
+
+**Spec:** `docs/superpowers/specs/2026-04-02-machine-context-custom-fields-design.md`
+
+---
+
+## File Map
+
+### Create
+- `migrations/VersionXXXX_MachineContextCustomFields.php` — migration
+- `tests/Api/Entity/MachineContextCustomFieldTest.php` — test class
+
+### Modify
+- `src/Entity/CustomField.php` — add `machineContextOnly` property
+- `src/Entity/CustomFieldValue.php` — add `machineComponentLink` and `machinePieceLink` FKs
+- `src/Entity/MachineComponentLink.php` — add `contextFieldValues` collection
+- `src/Entity/MachinePieceLink.php` — add `contextFieldValues` collection
+- `src/Controller/MachineStructureController.php` — normalize context fields + clone
+- `src/Controller/CustomFieldValueController.php` — link-based upsert
+- `tests/AbstractApiTestCase.php` — extend factories
+
+---
+
+## Task 1: Migration + Entity `CustomField` — `machineContextOnly`
+
+**Files:**
+- Modify: `src/Entity/CustomField.php` (add property after line 56)
+
+- [ ] **Step 1: Add `machineContextOnly` property to `CustomField` entity**
+
+In `src/Entity/CustomField.php`, add after the `$required` property (line 56):
+
+```php
+#[ORM\Column(type: Types::BOOLEAN, options: ['default' => false], name: 'machinecontextonly')]
+#[Groups(['composant:read', 'piece:read', 'product:read', 'machine:read'])]
+private bool $machineContextOnly = false;
+```
+
+Add getter/setter before the closing `}`:
+
+```php
+public function isMachineContextOnly(): bool
+{
+    return $this->machineContextOnly;
+}
+
+public function setMachineContextOnly(bool $machineContextOnly): static
+{
+    $this->machineContextOnly = $machineContextOnly;
+
+    return $this;
+}
+```
+
+- [ ] **Step 2: Generate and adjust migration**
+
+```bash
+docker exec -u www-data php-inventory-apache php bin/console doctrine:migrations:diff
+```
+
+Edit the generated migration to use idempotent SQL:
+
+```sql
+ALTER TABLE custom_fields ADD COLUMN IF NOT EXISTS machinecontextonly BOOLEAN DEFAULT false NOT NULL;
+```
+
+- [ ] **Step 3: Run migration**
+
+```bash
+docker exec -u www-data php-inventory-apache php bin/console doctrine:migrations:migrate --no-interaction
+```
+
+- [ ] **Step 4: Run linter**
+
+```bash
+make php-cs-fixer-allow-risky
+```
+
+- [ ] **Step 5: Commit**
+
+```bash
+git add src/Entity/CustomField.php migrations/
+git commit -m "feat(custom-fields) : add machineContextOnly flag to CustomField entity"
+```
+
+---
+
+## Task 2: Entity `CustomFieldValue` — link FKs + inverse collections
+
+**Files:**
+- Modify: `src/Entity/CustomFieldValue.php` (add after line 67 — `$product` property)
+- Modify: `src/Entity/MachineComponentLink.php` (add after line 72 — `$productLinks`)
+- Modify: `src/Entity/MachinePieceLink.php` (add after line 61 — `$productLinks`)
+
+- [ ] **Step 1: Add FKs to `CustomFieldValue`**
+
+In `src/Entity/CustomFieldValue.php`, add after the `$product` property (line 67):
+
+```php
+#[ORM\ManyToOne(targetEntity: MachineComponentLink::class, inversedBy: 'contextFieldValues')]
+#[ORM\JoinColumn(name: 'machinecomponentlinkid', referencedColumnName: 'id', nullable: true, onDelete: 'CASCADE')]
+private ?MachineComponentLink $machineComponentLink = null;
+
+#[ORM\ManyToOne(targetEntity: MachinePieceLink::class, inversedBy: 'contextFieldValues')]
+#[ORM\JoinColumn(name: 'machinepiecelinkid', referencedColumnName: 'id', nullable: true, onDelete: 'CASCADE')]
+private ?MachinePieceLink $machinePieceLink = null;
+```
+
+Add getters/setters before the closing `}`:
+
+```php
+public function getMachineComponentLink(): ?MachineComponentLink
+{
+    return $this->machineComponentLink;
+}
+
+public function setMachineComponentLink(?MachineComponentLink $machineComponentLink): static
+{
+    $this->machineComponentLink = $machineComponentLink;
+
+    return $this;
+}
+
+public function getMachinePieceLink(): ?MachinePieceLink
+{
+    return $this->machinePieceLink;
+}
+
+public function setMachinePieceLink(?MachinePieceLink $machinePieceLink): static
+{
+    $this->machinePieceLink = $machinePieceLink;
+
+    return $this;
+}
+```
+
+- [ ] **Step 2: Add `contextFieldValues` collection to `MachineComponentLink`**
+
+In `src/Entity/MachineComponentLink.php`, add after the `$productLinks` collection (line 72):
+
+```php
+/**
+ * @var Collection<int, CustomFieldValue>
+ */
+#[ORM\OneToMany(mappedBy: 'machineComponentLink', targetEntity: CustomFieldValue::class, cascade: ['persist', 'remove'], orphanRemoval: true)]
+private Collection $contextFieldValues;
+```
+
+In the constructor (line 95), add:
+```php
+$this->contextFieldValues = new ArrayCollection();
+```
+
+Add getter before the closing `}`:
+```php
+/**
+ * @return Collection<int, CustomFieldValue>
+ */
+public function getContextFieldValues(): Collection
+{
+    return $this->contextFieldValues;
+}
+```
+
+- [ ] **Step 3: Add `contextFieldValues` collection to `MachinePieceLink`**
+
+In `src/Entity/MachinePieceLink.php`, add after the `$productLinks` collection (line 61):
+
+```php
+/**
+ * @var Collection<int, CustomFieldValue>
+ */
+#[ORM\OneToMany(mappedBy: 'machinePieceLink', targetEntity: CustomFieldValue::class, cascade: ['persist', 'remove'], orphanRemoval: true)]
+private Collection $contextFieldValues;
+```
+
+In the constructor (line 86), add:
+```php
+$this->contextFieldValues = new ArrayCollection();
+```
+
+Add getter:
+```php
+/**
+ * @return Collection<int, CustomFieldValue>
+ */
+public function getContextFieldValues(): Collection
+{
+    return $this->contextFieldValues;
+}
+```
+
+- [ ] **Step 4: Generate and adjust migration**
+
+```bash
+docker exec -u www-data php-inventory-apache php bin/console doctrine:migrations:diff
+```
+
+Edit migration to use idempotent SQL:
+```sql
+ALTER TABLE custom_field_values ADD COLUMN IF NOT EXISTS machinecomponentlinkid VARCHAR(36) DEFAULT NULL;
+ALTER TABLE custom_field_values ADD COLUMN IF NOT EXISTS machinepiecelinkid VARCHAR(36) DEFAULT NULL;
+
+DO $$ BEGIN
+    IF NOT EXISTS (SELECT 1 FROM pg_constraint WHERE conname = 'fk_cfv_machine_component_link') THEN
+        ALTER TABLE custom_field_values ADD CONSTRAINT fk_cfv_machine_component_link
+            FOREIGN KEY (machinecomponentlinkid) REFERENCES machine_component_links(id) ON DELETE CASCADE;
+    END IF;
+END $$;
+
+DO $$ BEGIN
+    IF NOT EXISTS (SELECT 1 FROM pg_constraint WHERE conname = 'fk_cfv_machine_piece_link') THEN
+        ALTER TABLE custom_field_values ADD CONSTRAINT fk_cfv_machine_piece_link
+            FOREIGN KEY (machinepiecelinkid) REFERENCES machine_piece_links(id) ON DELETE CASCADE;
+    END IF;
+END $$;
+
+CREATE INDEX IF NOT EXISTS idx_cfv_machine_component_link ON custom_field_values(machinecomponentlinkid);
+CREATE INDEX IF NOT EXISTS idx_cfv_machine_piece_link ON custom_field_values(machinepiecelinkid);
+```
+
+- [ ] **Step 5: Run migration + linter**
+
+```bash
+docker exec -u www-data php-inventory-apache php bin/console doctrine:migrations:migrate --no-interaction
+make php-cs-fixer-allow-risky
+```
+
+- [ ] **Step 6: Commit**
+
+```bash
+git add src/Entity/CustomFieldValue.php src/Entity/MachineComponentLink.php src/Entity/MachinePieceLink.php migrations/
+git commit -m "feat(custom-fields) : add link FKs to CustomFieldValue for machine context"
+```
+
+---
+
+## Task 3: Test factories — extend helpers
+
+**Files:**
+- Modify: `tests/AbstractApiTestCase.php:399-461`
+
+- [ ] **Step 1: Update `createCustomField()` factory**
+
+In `tests/AbstractApiTestCase.php`, add `bool $machineContextOnly = false` parameter at the end of `createCustomField` (line 399), and add `$cf->setMachineContextOnly($machineContextOnly);` after `$cf->setOrderIndex($orderIndex);` (line 411).
+
+- [ ] **Step 2: Update `createCustomFieldValue()` factory**
+
+Add two new nullable parameters at the end of `createCustomFieldValue` (line 432):
+
+```php
+?MachineComponentLink $machineComponentLink = null,
+?MachinePieceLink $machinePieceLink = null,
+```
+
+Add the corresponding setter calls **after the closing `}` of the `if (null !== $product)` block** (after line 454, NOT inside it):
+
+```php
+if (null !== $machineComponentLink) {
+    $cfv->setMachineComponentLink($machineComponentLink);
+}
+if (null !== $machinePieceLink) {
+    $cfv->setMachinePieceLink($machinePieceLink);
+}
+```
+
+- [ ] **Step 3: Run linter**
+
+```bash
+make php-cs-fixer-allow-risky
+```
+
+- [ ] **Step 4: Commit**
+
+```bash
+git add tests/AbstractApiTestCase.php
+git commit -m "test(custom-fields) : extend factories for machineContextOnly and link params"
+```
+
+---
+
+## Task 4: `MachineStructureController` — normalize context fields
+
+**Files:**
+- Modify: `src/Controller/MachineStructureController.php`
+
+- [ ] **Step 1: Add `machineContextOnly` to all normalization methods**
+
+In `normalizeCustomFields` (line 601), add to the output array at line 615:
+```php
+'machineContextOnly' => $customField->isMachineContextOnly(),
+```
+
+In `normalizeCustomFieldDefinitions` (line 838), add to the output array at line 852:
+```php
+'machineContextOnly' => $cf->isMachineContextOnly(),
+```
+
+In `normalizeCustomFieldValues` (line 861), add to the nested `customField` array at line 879:
+```php
+'machineContextOnly' => $cf->isMachineContextOnly(),
+```
+
+- [ ] **Step 2: Add `normalizeContextCustomFieldDefinitions` helper**
+
+Add a new private method after `normalizeCustomFieldValues`:
+
+```php
+private function normalizeContextCustomFieldDefinitions(Collection $customFields): array
+{
+    $items = [];
+    foreach ($customFields as $cf) {
+        if (!$cf instanceof CustomField || !$cf->isMachineContextOnly()) {
+            continue;
+        }
+        $items[] = [
+            'id'                 => $cf->getId(),
+            'name'               => $cf->getName(),
+            'type'               => $cf->getType(),
+            'required'           => $cf->isRequired(),
+            'options'            => $cf->getOptions(),
+            'defaultValue'       => $cf->getDefaultValue(),
+            'orderIndex'         => $cf->getOrderIndex(),
+            'machineContextOnly' => true,
+        ];
+    }
+
+    usort($items, static fn (array $a, array $b) => $a['orderIndex'] <=> $b['orderIndex']);
+
+    return $items;
+}
+```
+
+- [ ] **Step 3: Update `normalizeComponentLinks` to include context fields**
+
+In `normalizeComponentLinks` (line 622), add `$type` variable and context field keys to the returned array:
+
+```php
+private function normalizeComponentLinks(array $links): array
+{
+    return array_map(function (MachineComponentLink $link): array {
+        $composant  = $link->getComposant();
+        $parentLink = $link->getParentLink();
+        $type       = $composant->getTypeComposant();
+
+        return [
+            'id'                       => $link->getId(),
+            'linkId'                   => $link->getId(),
+            'machineId'                => $link->getMachine()->getId(),
+            'composantId'              => $composant->getId(),
+            'composant'                => $this->normalizeComposant($composant),
+            'parentLinkId'             => $parentLink?->getId(),
+            'parentComponentLinkId'    => $parentLink?->getId(),
+            'parentComponentId'        => $parentLink?->getComposant()->getId(),
+            'overrides'                => $this->normalizeOverrides($link),
+            'childLinks'               => [],
+            'pieceLinks'               => [],
+            'contextCustomFields'      => $type ? $this->normalizeContextCustomFieldDefinitions($type->getComponentCustomFields()) : [],
+            'contextCustomFieldValues' => $this->normalizeCustomFieldValues($link->getContextFieldValues()),
+        ];
+    }, $links);
+}
+```
+
+- [ ] **Step 4: Update `normalizePieceLinks` to include context fields**
+
+In `normalizePieceLinks` (line 644):
+
+```php
+private function normalizePieceLinks(array $links): array
+{
+    return array_map(function (MachinePieceLink $link): array {
+        $piece      = $link->getPiece();
+        $parentLink = $link->getParentLink();
+        $type       = $piece->getTypePiece();
+
+        return [
+            'id'                       => $link->getId(),
+            'linkId'                   => $link->getId(),
+            'machineId'                => $link->getMachine()->getId(),
+            'pieceId'                  => $piece->getId(),
+            'piece'                    => $this->normalizePiece($piece),
+            'parentLinkId'             => $parentLink?->getId(),
+            'parentComponentLinkId'    => $parentLink?->getId(),
+            'parentComponentId'        => $parentLink?->getComposant()->getId(),
+            'overrides'                => $this->normalizeOverrides($link),
+            'quantity'                 => $this->resolvePieceQuantity($link),
+            'contextCustomFields'      => $type ? $this->normalizeContextCustomFieldDefinitions($type->getPieceCustomFields()) : [],
+            'contextCustomFieldValues' => $this->normalizeCustomFieldValues($link->getContextFieldValues()),
+        ];
+    }, $links);
+}
+```
+
+- [ ] **Step 5: Run linter**
+
+```bash
+make php-cs-fixer-allow-risky
+```
+
+- [ ] **Step 6: Commit**
+
+```bash
+git add src/Controller/MachineStructureController.php
+git commit -m "feat(custom-fields) : expose context custom fields in machine structure response"
+```
+
+---
+
+## Task 5: `CustomFieldValueController` — support link-based upsert
+
+**Files:**
+- Modify: `src/Controller/CustomFieldValueController.php`
+
+- [ ] **Step 1: Inject link repositories in constructor**
+
+In the constructor (line 24), add:
+
+```php
+private readonly MachineComponentLinkRepository $machineComponentLinkRepository,
+private readonly MachinePieceLinkRepository $machinePieceLinkRepository,
+```
+
+Add use statements at the top:
+```php
+use App\Repository\MachineComponentLinkRepository;
+use App\Repository\MachinePieceLinkRepository;
+```
+
+- [ ] **Step 2: Extend `resolveTarget` to support link entities**
+
+In `resolveTarget` (line 211), the method applies `strtolower()` on entityType at line 213. The candidate loop and match block must handle this.
+
+Update the candidate list in the foreach (line 217):
+```php
+foreach (['machine', 'composant', 'piece', 'product', 'machineComponentLink', 'machinePieceLink'] as $candidate) {
+```
+
+**IMPORTANT:** The candidate loop assigns `$entityType` in camelCase, but `strtolower()` (line 213) only applies when `entityType` comes from the payload directly. Add a normalization after the loop closes (after the existing `break;` at line 226), before the empty-check at line 229:
+
+```php
+$entityType = strtolower($entityType);
+```
+
+This ensures both code paths (direct payload `entityType` and candidate loop) deliver lowercase to the match block.
+
+Update the match block (line 233) — all keys lowercase, but `resolveEntity` returns camelCase type for `applyTarget`:
+
+```php
+return match ($entityType) {
+    'machine'              => $this->resolveEntity('machine', $entityId, $this->machineRepository),
+    'composant'            => $this->resolveEntity('composant', $entityId, $this->composantRepository),
+    'piece'                => $this->resolveEntity('piece', $entityId, $this->pieceRepository),
+    'product'              => $this->resolveEntity('product', $entityId, $this->productRepository),
+    'machinecomponentlink' => $this->resolveEntity('machineComponentLink', $entityId, $this->machineComponentLinkRepository),
+    'machinepiecelink'     => $this->resolveEntity('machinePieceLink', $entityId, $this->machinePieceLinkRepository),
+    default                => $this->json(['success' => false, 'error' => 'Unsupported entity type.'], 400),
+};
+```
+
+- [ ] **Step 3: Extend `applyTarget` for link entities**
+
+Add two new cases in `applyTarget` (line 252):
+
+```php
+case 'machineComponentLink':
+    $value->setMachineComponentLink($entity);
+    $value->setComposant($entity->getComposant());
+
+    break;
+
+case 'machinePieceLink':
+    $value->setMachinePieceLink($entity);
+    $value->setPiece($entity->getPiece());
+
+    break;
+```
+
+- [ ] **Step 4: Run linter**
+
+```bash
+make php-cs-fixer-allow-risky
+```
+
+- [ ] **Step 5: Commit**
+
+```bash
+git add src/Controller/CustomFieldValueController.php
+git commit -m "feat(custom-fields) : support link-based upsert in CustomFieldValueController"
+```
+
+---
+
+## Task 6: Clone support — copy context field values
+
+**Files:**
+- Modify: `src/Controller/MachineStructureController.php` (after `cloneProductLinks`, before `flush` in `cloneMachine`)
+
+- [ ] **Step 1: Add `cloneContextFieldValues` helper method**
+
+Add after `cloneProductLinks`:
+
+```php
+/**
+ * @param array<string, MachineComponentLink> $componentLinkMap
+ * @param array<string, MachinePieceLink>     $pieceLinkMap
+ */
+private function cloneContextFieldValues(
+    array $componentLinkMap,
+    array $pieceLinkMap,
+): void {
+    foreach ($componentLinkMap as $oldLinkId => $newLink) {
+        $oldLink = $this->machineComponentLinkRepository->find($oldLinkId);
+        if (!$oldLink) {
+            continue;
+        }
+        foreach ($oldLink->getContextFieldValues() as $cfv) {
+            $newValue = new CustomFieldValue();
+            $newValue->setCustomField($cfv->getCustomField());
+            $newValue->setValue($cfv->getValue());
+            $newValue->setMachineComponentLink($newLink);
+            $newValue->setComposant($newLink->getComposant());
+            $this->entityManager->persist($newValue);
+        }
+    }
+
+    foreach ($pieceLinkMap as $oldLinkId => $newLink) {
+        $oldLink = $this->machinePieceLinkRepository->find($oldLinkId);
+        if (!$oldLink) {
+            continue;
+        }
+        foreach ($oldLink->getContextFieldValues() as $cfv) {
+            $newValue = new CustomFieldValue();
+            $newValue->setCustomField($cfv->getCustomField());
+            $newValue->setValue($cfv->getValue());
+            $newValue->setMachinePieceLink($newLink);
+            $newValue->setPiece($newLink->getPiece());
+            $this->entityManager->persist($newValue);
+        }
+    }
+}
+```
+
+- [ ] **Step 2: Call from `cloneMachine` method**
+
+In `cloneMachine` (line 113), after `$this->cloneProductLinks($source, $newMachine, $componentLinkMap, $pieceLinkMap);` (line 163) and before `$this->entityManager->flush();` (line 165), add:
+
+```php
+$this->cloneContextFieldValues($componentLinkMap, $pieceLinkMap);
+```
+
+- [ ] **Step 3: Run linter**
+
+```bash
+make php-cs-fixer-allow-risky
+```
+
+- [ ] **Step 4: Commit**
+
+```bash
+git add src/Controller/MachineStructureController.php
+git commit -m "feat(custom-fields) : clone context field values on machine clone"
+```
+
+---
+
+## Task 7: Backend tests
+
+**Files:**
+- Create: `tests/Api/Entity/MachineContextCustomFieldTest.php`
+
+- [ ] **Step 1: Write test class**
+
+```php
+<?php
+
+declare(strict_types=1);
+
+namespace App\Tests\Api\Entity;
+
+use App\Enum\ModelCategory;
+use App\Tests\AbstractApiTestCase;
+
+class MachineContextCustomFieldTest extends AbstractApiTestCase
+{
+    public function testStructureReturnsContextFieldsOnComponentLink(): void
+    {
+        $client = $this->createGestionnaireClient();
+
+        $site      = $this->createSite('Site A');
+        $modelType = $this->createModelType('Motor', 'MOT', ModelCategory::COMPONENT);
+
+        $contextField = $this->createCustomField(
+            name: 'Voltage',
+            type: 'number',
+            typeComposant: $modelType,
+            machineContextOnly: true,
+        );
+        $normalField = $this->createCustomField(
+            name: 'Serial',
+            type: 'text',
+            typeComposant: $modelType,
+        );
+
+        $machine   = $this->createMachine('Machine A', $site);
+        $composant = $this->createComposant('Motor 1', 'MOT-001', $modelType);
+        $link      = $this->createMachineComponentLink($machine, $composant);
+
+        $this->createCustomFieldValue(
+            customField: $contextField,
+            value: '220',
+            composant: $composant,
+            machineComponentLink: $link,
+        );
+
+        $response = $client->request('GET', '/api/machines/'.$machine->getId().'/structure');
+        $this->assertResponseIsSuccessful();
+
+        $data          = $response->toArray();
+        $componentLink = $data['componentLinks'][0];
+
+        $this->assertArrayHasKey('contextCustomFields', $componentLink);
+        $this->assertCount(1, $componentLink['contextCustomFields']);
+        $this->assertSame('Voltage', $componentLink['contextCustomFields'][0]['name']);
+        $this->assertTrue($componentLink['contextCustomFields'][0]['machineContextOnly']);
+
+        $this->assertArrayHasKey('contextCustomFieldValues', $componentLink);
+        $this->assertCount(1, $componentLink['contextCustomFieldValues']);
+        $this->assertSame('220', $componentLink['contextCustomFieldValues'][0]['value']);
+
+        $normalFields = array_filter(
+            $componentLink['composant']['customFields'],
+            fn (array $f) => $f['name'] === 'Serial',
+        );
+        $this->assertCount(1, $normalFields);
+    }
+
+    public function testStructureReturnsContextFieldsOnPieceLink(): void
+    {
+        $client = $this->createGestionnaireClient();
+
+        $site      = $this->createSite('Site B');
+        $modelType = $this->createModelType('Bearing', 'BRG', ModelCategory::PIECE);
+        $contextField = $this->createCustomField(
+            name: 'Wear Level',
+            type: 'select',
+            typePiece: $modelType,
+            machineContextOnly: true,
+        );
+        $contextField->setOptions(['Good', 'Fair', 'Replace']);
+        $this->getEntityManager()->flush();
+
+        $machine = $this->createMachine('Machine B', $site);
+        $piece   = $this->createPiece('Bearing 1', 'BRG-001', $modelType);
+        $link    = $this->createMachinePieceLink($machine, $piece);
+
+        $this->createCustomFieldValue(
+            customField: $contextField,
+            value: 'Fair',
+            piece: $piece,
+            machinePieceLink: $link,
+        );
+
+        $response = $client->request('GET', '/api/machines/'.$machine->getId().'/structure');
+        $data     = $response->toArray();
+
+        $pieceLink = $data['pieceLinks'][0];
+        $this->assertCount(1, $pieceLink['contextCustomFields']);
+        $this->assertSame('Wear Level', $pieceLink['contextCustomFields'][0]['name']);
+        $this->assertCount(1, $pieceLink['contextCustomFieldValues']);
+        $this->assertSame('Fair', $pieceLink['contextCustomFieldValues'][0]['value']);
+    }
+
+    public function testUpsertContextFieldValueViaComponentLink(): void
+    {
+        $client = $this->createGestionnaireClient();
+
+        $site      = $this->createSite('Site C');
+        $modelType = $this->createModelType('Pump', 'PMP', ModelCategory::COMPONENT);
+        $contextField = $this->createCustomField(
+            name: 'Flow Rate',
+            type: 'number',
+            typeComposant: $modelType,
+            machineContextOnly: true,
+        );
+
+        $machine   = $this->createMachine('Machine C', $site);
+        $composant = $this->createComposant('Pump 1', 'PMP-001', $modelType);
+        $link      = $this->createMachineComponentLink($machine, $composant);
+
+        $response = $client->request('POST', '/api/custom-fields/values/upsert', [
+            'json' => [
+                'customFieldId'          => $contextField->getId(),
+                'machineComponentLinkId' => $link->getId(),
+                'value'                  => '380',
+            ],
+        ]);
+
+        $this->assertResponseIsSuccessful();
+        $data = $response->toArray();
+        $this->assertSame('380', $data['value']);
+    }
+
+    public function testSameComposantDifferentValuesPerMachine(): void
+    {
+        $client = $this->createGestionnaireClient();
+
+        $site      = $this->createSite('Site D');
+        $modelType = $this->createModelType('Valve', 'VLV', ModelCategory::COMPONENT);
+        $contextField = $this->createCustomField(
+            name: 'Pressure',
+            type: 'number',
+            typeComposant: $modelType,
+            machineContextOnly: true,
+        );
+
+        $machineA  = $this->createMachine('Machine A', $site);
+        $machineB  = $this->createMachine('Machine B', $site);
+        $composant = $this->createComposant('Valve 1', 'VLV-001', $modelType);
+
+        $linkA = $this->createMachineComponentLink($machineA, $composant);
+        $linkB = $this->createMachineComponentLink($machineB, $composant);
+
+        $this->createCustomFieldValue(
+            customField: $contextField,
+            value: '100',
+            composant: $composant,
+            machineComponentLink: $linkA,
+        );
+        $this->createCustomFieldValue(
+            customField: $contextField,
+            value: '200',
+            composant: $composant,
+            machineComponentLink: $linkB,
+        );
+
+        $dataA = $client->request('GET', '/api/machines/'.$machineA->getId().'/structure')->toArray();
+        $this->assertSame('100', $dataA['componentLinks'][0]['contextCustomFieldValues'][0]['value']);
+
+        $dataB = $client->request('GET', '/api/machines/'.$machineB->getId().'/structure')->toArray();
+        $this->assertSame('200', $dataB['componentLinks'][0]['contextCustomFieldValues'][0]['value']);
+    }
+
+    public function testMachineContextOnlyFieldSerialization(): void
+    {
+        $client = $this->createGestionnaireClient();
+
+        $site      = $this->createSite('Site E');
+        $modelType = $this->createModelType('Sensor', 'SNS', ModelCategory::COMPONENT);
+        $contextField = $this->createCustomField(
+            name: 'Calibration Date',
+            type: 'date',
+            typeComposant: $modelType,
+            machineContextOnly: true,
+        );
+
+        $response = $client->request('GET', '/api/custom_fields/'.$contextField->getId());
+        $this->assertResponseIsSuccessful();
+        $data = $response->toArray();
+        $this->assertTrue($data['machineContextOnly']);
+    }
+
+    public function testCloneMachineCopiesContextFieldValues(): void
+    {
+        $client = $this->createGestionnaireClient();
+
+        $site      = $this->createSite('Site F');
+        $modelType = $this->createModelType('Motor Clone', 'MOTC', ModelCategory::COMPONENT);
+        $contextField = $this->createCustomField(
+            name: 'RPM Setting',
+            type: 'number',
+            typeComposant: $modelType,
+            machineContextOnly: true,
+        );
+
+        $source    = $this->createMachine('Source Machine', $site);
+        $composant = $this->createComposant('Motor C', 'MOTC-001', $modelType);
+        $link      = $this->createMachineComponentLink($source, $composant);
+
+        $this->createCustomFieldValue(
+            customField: $contextField,
+            value: '3000',
+            composant: $composant,
+            machineComponentLink: $link,
+        );
+
+        $response = $client->request('POST', '/api/machines/'.$source->getId().'/clone', [
+            'json' => [
+                'name'   => 'Cloned Machine',
+                'siteId' => $site->getId(),
+            ],
+        ]);
+
+        $this->assertResponseStatusCodeSame(201);
+        $data = $response->toArray();
+
+        $clonedLink = $data['componentLinks'][0] ?? null;
+        $this->assertNotNull($clonedLink);
+        $this->assertCount(1, $clonedLink['contextCustomFieldValues']);
+        $this->assertSame('3000', $clonedLink['contextCustomFieldValues'][0]['value']);
+    }
+}
+```
+
+- [ ] **Step 2: Run tests**
+
+```bash
+make test FILES=tests/Api/Entity/MachineContextCustomFieldTest.php
+```
+
+Expected: All 6 tests pass.
+
+- [ ] **Step 3: Run linter**
+
+```bash
+make php-cs-fixer-allow-risky
+```
+
+- [ ] **Step 4: Run full test suite**
+
+```bash
+make test
+```
+
+Expected: All existing tests still pass.
+
+- [ ] **Step 5: Commit**
+
+```bash
+git add tests/Api/Entity/MachineContextCustomFieldTest.php
+git commit -m "test(custom-fields) : add tests for machine context custom fields"
+```

docs/superpowers/plans/2026-04-02-machine-context-fields-frontend.md

@@ -0,0 +1,404 @@
+# Machine Context Custom Fields — Frontend Plan
+
+> **For agentic workers:** REQUIRED SUB-SKILL: Use superpowers:subagent-driven-development (recommended) or superpowers:executing-plans to implement this plan task-by-task. Steps use checkbox (`- [ ]`) syntax for tracking.
+> **Parallel plan:** This is the frontend half. The backend plan is at `2026-04-02-machine-context-fields-backend.md`. Both can run in parallel on separate worktrees — they share no files. Frontend tests requiring the API will need the backend done first.
+
+**Goal:** Add `machineContextOnly` toggle in structure editors, filter context fields from standalone pages, and display/edit them in the machine detail view.
+
+**Architecture:** Structure editors get a checkbox per field. The machine-detail transform propagates `contextCustomFields`/`contextCustomFieldValues` from the API link response onto the component/piece objects. Standalone entity views filter these out. Machine view displays them in a separate "Champs contextuels" section using the existing `CustomFieldDisplay` component, saving via upsert with the link ID.
+
+**Tech Stack:** Nuxt 4, Vue 3 Composition API, TypeScript, DaisyUI 5
+
+**Spec:** `docs/superpowers/specs/2026-04-02-machine-context-custom-fields-design.md`
+
+---
+
+## File Map
+
+### Modify
+- `frontend/app/shared/types/inventory.ts` — add `machineContextOnly` to custom field types
+- `frontend/app/components/PieceModelStructureEditor.vue` — add checkbox toggle
+- `frontend/app/composables/usePieceStructureEditorLogic.ts` — add default in `createEmptyField()`
+- `frontend/app/components/StructureNodeEditor.vue` — add checkbox toggle
+- `frontend/app/composables/useStructureNodeCrud.ts` — add default in `addCustomField()`
+- `frontend/app/composables/useEntityCustomFields.ts` — filter out `machineContextOnly` fields
+- `frontend/app/composables/useMachineDetailCustomFields.ts` — propagate context fields, filter from normal merge
+- `frontend/app/components/ComponentItem.vue` — display context custom fields section
+- `frontend/app/components/PieceItem.vue` — display context custom fields section
+
+---
+
+## Task 1: Types — add `machineContextOnly`
+
+**Files:**
+- Modify: `frontend/app/shared/types/inventory.ts`
+
+- [ ] **Step 1: Add `machineContextOnly` to `ComponentModelCustomField`**
+
+In the `ComponentModelCustomField` interface (around line 14), add:
+
+```typescript
+machineContextOnly?: boolean
+```
+
+- [ ] **Step 2: Add `machineContextOnly` to `PieceModelCustomField`**
+
+In the `PieceModelCustomField` interface (around line 65), add:
+
+```typescript
+machineContextOnly?: boolean
+```
+
+- [ ] **Step 3: Commit**
+
+```bash
+cd frontend && git add app/shared/types/inventory.ts
+git commit -m "feat(custom-fields) : add machineContextOnly to custom field types"
+```
+
+---
+
+## Task 2: Structure editors — add toggle
+
+**Files:**
+- Modify: `frontend/app/components/PieceModelStructureEditor.vue:122-125`
+- Modify: `frontend/app/composables/usePieceStructureEditorLogic.ts:283-290`
+- Modify: `frontend/app/components/StructureNodeEditor.vue:121-125`
+- Modify: `frontend/app/composables/useStructureNodeCrud.ts:49-62`
+
+- [ ] **Step 1: Add toggle in `PieceModelStructureEditor.vue`**
+
+After the "Obligatoire" checkbox block (line 125, after `</div>` closing the required checkbox), add:
+
+```vue
+              <div class="flex items-center gap-2 text-xs">
+                <input v-model="field.machineContextOnly" type="checkbox" class="checkbox checkbox-xs">
+                Contexte machine uniquement
+              </div>
+```
+
+- [ ] **Step 2: Update `usePieceStructureEditorLogic.ts` — 3 functions**
+
+**a) `createEmptyField`** (line 283) — add `machineContextOnly: false` to the returned object:
+
+```typescript
+const createEmptyField = (orderIndex: number): EditorField => ({
+    uid: createUid('field'),
+    name: '',
+    type: 'text',
+    required: false,
+    optionsText: '',
+    machineContextOnly: false,
+    orderIndex,
+})
+```
+
+**b) `toEditorField`** (line 78-91) — add `machineContextOnly` to the returned object, after the `orderIndex` line (line 90):
+
+```typescript
+machineContextOnly: Boolean(input?.machineContextOnly),
+```
+
+**c) `buildPayload`** (line 160-165) — add `machineContextOnly` to the `payload` object after `orderIndex` (line 164):
+
+```typescript
+machineContextOnly: Boolean(field.machineContextOnly),
+```
+
+- [ ] **Step 3: Add toggle in `StructureNodeEditor.vue`**
+
+After the "Obligatoire" checkbox closing `</div>` (line 123) and **before** the `<textarea>` for select options (line 124), add:
+
+```vue
+                <div class="flex items-center gap-2 text-xs">
+                  <input v-model="field.machineContextOnly" type="checkbox" class="checkbox checkbox-xs">
+                  Contexte machine uniquement
+                </div>
+```
+
+- [ ] **Step 4: Update `addCustomField` in `useStructureNodeCrud.ts`**
+
+In `addCustomField` (line 49), add `machineContextOnly: false` to the pushed object (line 53-60):
+
+```typescript
+fields.push({
+    name: '',
+    type: 'text',
+    required: false,
+    optionsText: '',
+    options: [],
+    machineContextOnly: false,
+    orderIndex: nextIndex,
+})
+```
+
+- [ ] **Step 5: Run lint + typecheck**
+
+```bash
+cd frontend && npm run lint:fix && npx nuxi typecheck
+```
+
+Expected: 0 errors.
+
+- [ ] **Step 6: Commit**
+
+```bash
+cd frontend && git add .
+git commit -m "feat(custom-fields) : add machineContextOnly toggle in structure editors"
+```
+
+---
+
+## Task 3: Filter context fields on standalone pages + machine-detail transform
+
+**Files:**
+- Modify: `frontend/app/composables/useEntityCustomFields.ts:42-49`
+- Modify: `frontend/app/composables/useMachineDetailCustomFields.ts:141-154,241-256`
+
+- [ ] **Step 1: Filter `machineContextOnly` from `displayedCustomFields` in `useEntityCustomFields.ts`**
+
+Update the `displayedCustomFields` computed (line 42):
+
+```typescript
+const displayedCustomFields = computed(() =>
+  dedupeMergedFields(
+    mergeFieldDefinitionsWithValues(
+      definitionSources.value,
+      entity().customFieldValues,
+    ),
+  ).filter((field: any) => !field.machineContextOnly && !field.customField?.machineContextOnly),
+)
+```
+
+- [ ] **Step 2: Filter `machineContextOnly` from normal customFields in machine-detail transform and propagate context data**
+
+In `frontend/app/composables/useMachineDetailCustomFields.ts`:
+
+**For pieces** — In `transformCustomFields` (line 70), the returned object is built at line 141. Replace the `customFields,` line (line 143) with:
+
+```typescript
+customFields: customFields.filter((f: AnyRecord) => !f.machineContextOnly && !f.customField?.machineContextOnly),
+contextCustomFields: piece.contextCustomFields ?? [],
+contextCustomFieldValues: piece.contextCustomFieldValues ?? [],
+```
+
+**For components** — In `transformComponentCustomFields` (line 158), the returned object is built at line 241. Replace the `customFields,` line (line 243) with:
+
+```typescript
+customFields: customFields.filter((f: AnyRecord) => !f.machineContextOnly && !f.customField?.machineContextOnly),
+contextCustomFields: component.contextCustomFields ?? [],
+contextCustomFieldValues: component.contextCustomFieldValues ?? [],
+```
+
+- [ ] **Step 3: Run lint + typecheck**
+
+```bash
+cd frontend && npm run lint:fix && npx nuxi typecheck
+```
+
+Expected: 0 errors.
+
+- [ ] **Step 4: Commit**
+
+```bash
+cd frontend && git add .
+git commit -m "feat(custom-fields) : filter machineContextOnly from standalone and machine-detail views"
+```
+
+---
+
+## Task 4: Display context fields in machine view — `ComponentItem.vue`
+
+**Files:**
+- Modify: `frontend/app/components/ComponentItem.vue`
+
+Context fields are on the `component` object (set by the transform in Task 3), not as separate props.
+
+- [ ] **Step 1: Add template section**
+
+After the existing `CustomFieldDisplay` block (line 195), add:
+
+```vue
+        <!-- Context custom fields (machine-specific) -->
+        <div v-if="mergedContextFields.length" class="mt-4">
+          <h4 class="text-xs font-semibold text-base-content/70 mb-2">
+            Champs contextuels
+          </h4>
+          <CustomFieldDisplay
+            :fields="mergedContextFields"
+            :is-edit-mode="isEditMode"
+            :columns="2"
+            @field-blur="updateContextCustomField"
+          />
+        </div>
+```
+
+- [ ] **Step 2: Add imports and script logic**
+
+**IMPORTANT:** `ComponentItem.vue` uses `<script setup>` WITHOUT `lang="ts"`. Do NOT use TypeScript annotations (`: any`, `: string`, etc.) in any code added to this file.
+
+Add these imports (they are NOT already present in the component):
+
+```javascript
+import { mergeFieldDefinitionsWithValues, dedupeMergedFields } from '~/shared/utils/entityCustomFieldLogic'
+import { useCustomFields } from '~/composables/useCustomFields'
+import { useToast } from '~/composables/useToast'
+```
+
+Add after the existing `useEntityCustomFields` block (around line 348):
+
+```javascript
+const { upsertCustomFieldValue } = useCustomFields()
+const { showSuccess, showError } = useToast()
+
+const mergedContextFields = computed(() => {
+  const definitions = props.component?.contextCustomFields ?? []
+  const values = props.component?.contextCustomFieldValues ?? []
+  if (!definitions.length && !values.length) return []
+  return dedupeMergedFields(
+    mergeFieldDefinitionsWithValues(definitions, values),
+  )
+})
+
+const updateContextCustomField = async (field) => {
+  const linkId = props.component?.linkId
+  if (!linkId || !field) return
+
+  const customFieldId = field.customFieldId || field.customField?.id
+  if (!customFieldId) return
+
+  const result = await upsertCustomFieldValue(
+    customFieldId,
+    'machineComponentLink',
+    linkId,
+    field.value ?? '',
+  )
+
+  if (result.success) {
+    showSuccess(`Champ contextuel "${field.name || field.customField?.name}" mis à jour`)
+  } else {
+    showError(`Erreur lors de la mise à jour du champ contextuel`)
+  }
+}
+```
+
+- [ ] **Step 3: Run lint + typecheck**
+
+```bash
+cd frontend && npm run lint:fix && npx nuxi typecheck
+```
+
+- [ ] **Step 4: Commit**
+
+```bash
+cd frontend && git add app/components/ComponentItem.vue
+git commit -m "feat(custom-fields) : display context custom fields in ComponentItem"
+```
+
+---
+
+## Task 5: Display context fields in machine view — `PieceItem.vue`
+
+**Files:**
+- Modify: `frontend/app/components/PieceItem.vue`
+
+- [ ] **Step 1: Add template section**
+
+After the existing `CustomFieldDisplay` block (line 236), add:
+
+```vue
+        <!-- Context custom fields (machine-specific) -->
+        <div v-if="mergedContextFields.length" class="mt-4">
+          <h4 class="text-xs font-semibold text-base-content/70 mb-2">
+            Champs contextuels
+          </h4>
+          <CustomFieldDisplay
+            :fields="mergedContextFields"
+            :is-edit-mode="isEditMode"
+            :columns="2"
+            @field-blur="updateContextCustomField"
+          />
+        </div>
+```
+
+- [ ] **Step 2: Add imports and script logic**
+
+**IMPORTANT:** `PieceItem.vue` uses `<script setup>` WITHOUT `lang="ts"`. Do NOT use TypeScript annotations in any code added to this file.
+
+Add these imports (they are NOT already present in the component):
+
+```javascript
+import { mergeFieldDefinitionsWithValues, dedupeMergedFields } from '~/shared/utils/entityCustomFieldLogic'
+import { useCustomFields } from '~/composables/useCustomFields'
+import { useToast } from '~/composables/useToast'
+```
+
+Add after the existing `useEntityCustomFields` block (around line 366):
+
+```javascript
+const { upsertCustomFieldValue } = useCustomFields()
+const { showSuccess, showError } = useToast()
+
+const mergedContextFields = computed(() => {
+  const definitions = props.piece?.contextCustomFields ?? []
+  const values = props.piece?.contextCustomFieldValues ?? []
+  if (!definitions.length && !values.length) return []
+  return dedupeMergedFields(
+    mergeFieldDefinitionsWithValues(definitions, values),
+  )
+})
+
+const updateContextCustomField = async (field) => {
+  const linkId = props.piece?.linkId
+  if (!linkId || !field) return
+
+  const customFieldId = field.customFieldId || field.customField?.id
+  if (!customFieldId) return
+
+  const result = await upsertCustomFieldValue(
+    customFieldId,
+    'machinePieceLink',
+    linkId,
+    field.value ?? '',
+  )
+
+  if (result.success) {
+    showSuccess(`Champ contextuel "${field.name || field.customField?.name}" mis à jour`)
+  } else {
+    showError(`Erreur lors de la mise à jour du champ contextuel`)
+  }
+}
+```
+
+- [ ] **Step 3: Run lint + typecheck**
+
+```bash
+cd frontend && npm run lint:fix && npx nuxi typecheck
+```
+
+- [ ] **Step 4: Commit**
+
+```bash
+cd frontend && git add app/components/PieceItem.vue
+git commit -m "feat(custom-fields) : display context custom fields in PieceItem"
+```
+
+---
+
+## Task 6: Frontend build verification
+
+- [ ] **Step 1: Run full build**
+
+```bash
+cd frontend && npm run build
+```
+
+Expected: Build succeeds with no errors.
+
+- [ ] **Step 2: Final commit — update submodule pointer (from main repo)**
+
+```bash
+cd /home/matthieu/dev_malio/Inventory
+git add frontend
+git commit -m "chore : update frontend submodule for context custom fields"
+```

docs/superpowers/specs/2026-04-02-machine-context-custom-fields-design.md

@@ -0,0 +1,154 @@
+# Machine Context Custom Fields
+
+**Date** : 2026-04-02
+**Statut** : Validé
+
+## Objectif
+
+Permettre de définir des champs personnalisés sur un ModelType (catégorie de pièce/composant) qui ne s'affichent et ne sont remplissables que lorsque l'item est lié à une machine. Les valeurs sont propres au lien machine (une même pièce dans deux machines peut avoir des valeurs différentes).
+
+## Périmètre
+
+- **Entités concernées** : Composants et Pièces (pas Produits)
+- **Définition** : Sur le ModelType, avec un flag `machineContextOnly`
+- **Valeurs** : Stockées par lien (`MachineComponentLink` / `MachinePieceLink`)
+- **Affichage** : Uniquement dans la vue machine, pas sur les fiches autonomes
+
+## Architecture
+
+### Approche retenue
+
+Extension des entités existantes `CustomField` et `CustomFieldValue` avec :
+- Un flag de filtrage sur la définition
+- Des FK vers les entités de lien pour les valeurs
+
+### Alternatives écartées
+
+- **Entités séparées** (`MachineContextField` / `MachineContextFieldValue`) — trop de duplication de logique
+- **JSON sur les liens** — contraire au projet de normalisation JSON→tables en cours
+
+## Backend
+
+### 1. Entité `CustomField`
+
+Nouveau champ :
+
+```php
+#[ORM\Column(type: 'boolean', options: ['default' => false])]
+#[Groups(['customField:read', 'customField:write'])]
+private bool $machineContextOnly = false;
+```
+
+Getter/setter associés.
+
+### 2. Entité `CustomFieldValue`
+
+Nouvelles FK nullable :
+
+```php
+#[ORM\ManyToOne(targetEntity: MachineComponentLink::class, inversedBy: 'contextFieldValues')]
+#[ORM\JoinColumn(nullable: true)]
+private ?MachineComponentLink $machineComponentLink = null;
+
+#[ORM\ManyToOne(targetEntity: MachinePieceLink::class, inversedBy: 'contextFieldValues')]
+#[ORM\JoinColumn(nullable: true)]
+private ?MachinePieceLink $machinePieceLink = null;
+```
+
+Contrainte métier : quand `machineComponentLink` est set, `composant` reste aussi set (pour faciliter les queries par composant). Idem pour `machinePieceLink` + `piece`.
+
+### 3. Entités `MachineComponentLink` / `MachinePieceLink`
+
+Nouvelle collection :
+
+```php
+#[ORM\OneToMany(targetEntity: CustomFieldValue::class, mappedBy: 'machineComponentLink', cascade: ['persist', 'remove'], orphanRemoval: true)]
+private Collection $contextFieldValues;
+```
+
+Idem sur `MachinePieceLink` avec `mappedBy: 'machinePieceLink'`.
+
+### 4. Migration
+
+```sql
+ALTER TABLE custom_field ADD machine_context_only BOOLEAN DEFAULT false NOT NULL;
+
+ALTER TABLE custom_field_value ADD machine_component_link_id VARCHAR(36) DEFAULT NULL;
+ALTER TABLE custom_field_value ADD machine_piece_link_id VARCHAR(36) DEFAULT NULL;
+
+ALTER TABLE custom_field_value
+    ADD CONSTRAINT fk_cfv_machine_component_link
+    FOREIGN KEY (machine_component_link_id) REFERENCES machine_component_link(id) ON DELETE CASCADE;
+
+ALTER TABLE custom_field_value
+    ADD CONSTRAINT fk_cfv_machine_piece_link
+    FOREIGN KEY (machine_piece_link_id) REFERENCES machine_piece_link(id) ON DELETE CASCADE;
+
+CREATE INDEX idx_cfv_machine_component_link ON custom_field_value(machine_component_link_id);
+CREATE INDEX idx_cfv_machine_piece_link ON custom_field_value(machine_piece_link_id);
+```
+
+### 5. `MachineStructureController`
+
+Dans `normalizeComposant()` et `normalizePiece()` :
+- Récupérer les `CustomField` du ModelType où `machineContextOnly = true`
+- Récupérer les `CustomFieldValue` liées au lien via `machineComponentLink` / `machinePieceLink`
+- Ajouter dans la réponse :
+
+```json
+{
+  "contextCustomFields": [{ "id": "...", "name": "...", "type": "...", ... }],
+  "contextCustomFieldValues": [{ "id": "...", "value": "...", "customField": {...} }]
+}
+```
+
+Séparé des `customFields` / `customFieldValues` globaux existants.
+
+### 6. `CustomFieldValueController`
+
+L'upsert existant est étendu pour accepter `machineComponentLink` ou `machinePieceLink` dans le body. Le controller vérifie que si le `CustomField` a `machineContextOnly = true`, un lien machine est obligatoire.
+
+### 7. Clonage machine
+
+`MachineStructureController::cloneCustomFields()` doit aussi cloner les `contextFieldValues` des liens, en les rattachant aux nouveaux liens créés lors du clone.
+
+## Frontend
+
+### 1. Page ModelType — Définition des champs
+
+Dans l'UI d'édition des custom fields d'un ModelType, ajouter un **toggle/checkbox** "Contexte machine uniquement" sur chaque définition de champ. Cela set `machineContextOnly: true` lors de la sauvegarde.
+
+Concerne les custom fields des catégories COMPONENT et PIECE (pas PRODUCT, hors périmètre).
+
+### 2. Vue machine — `ComponentItem.vue` / `PieceItem.vue`
+
+Nouvelle section "Champs contextuels" affichée sous les custom fields existants :
+- Reçoit `contextCustomFields` et `contextCustomFieldValues` en props
+- Réutilise le composant `CustomFieldDisplay.vue` existant
+- Mode édition : sur blur/change, appel upsert via `CustomFieldValueController` avec le `machineComponentLinkId` ou `machinePieceLinkId`
+
+### 3. Fiches autonomes pièce/composant
+
+Filtrer les champs `machineContextOnly = true` pour ne pas les afficher :
+- Dans `useEntityCustomFields` : exclure ces champs du `displayedCustomFields`
+- Dans `useMachineDetailCustomFields` : séparer les champs normaux des champs contextuels
+
+### 4. Transformation des données (`useMachineDetailCustomFields`)
+
+`transformComponentCustomFields()` et `transformCustomFields()` :
+- Extraire `contextCustomFields` / `contextCustomFieldValues` depuis la réponse structure
+- Les passer en propriétés séparées sur l'objet transformé
+
+## Tests
+
+### Backend
+- Test unitaire : `CustomField` avec `machineContextOnly = true` est correctement sérialisé
+- Test API : upsert d'un `CustomFieldValue` avec `machineComponentLink` fonctionne
+- Test API : upsert d'un `CustomFieldValue` contextuel sans lien machine retourne une erreur
+- Test API : `/api/machines/{id}/structure` retourne les `contextCustomFields` et `contextCustomFieldValues`
+- Test API : clone machine copie les valeurs contextuelles
+
+### Frontend
+- Typecheck : 0 erreurs après modifications
+- Vérification manuelle : les champs contextuels apparaissent dans la vue machine
+- Vérification manuelle : les champs contextuels n'apparaissent pas sur les fiches autonomes

frontend/app/components/ComponentHierarchy.vue

@@ -12,6 +12,7 @@
         @edit-piece="$emit('edit-piece', $event)"
         @custom-field-update="$emit('custom-field-update', $event)"
         @delete="$emit('delete')"
+        @fill-entity="(linkId, typeId) => $emit('fill-entity', linkId, typeId)"
       />
     </div>
   </div>
@@ -43,5 +44,5 @@ defineProps({
   }
 })
 
-defineEmits(['update', 'edit-piece', 'custom-field-update', 'delete'])
+defineEmits(['update', 'edit-piece', 'custom-field-update', 'delete', 'fill-entity'])
 </script>

frontend/app/components/ComponentItem.vue

@@ -14,7 +14,7 @@
     />
 
     <!-- Component Header -->
-    <div class="flex items-center gap-3 p-3 bg-base-200 rounded-lg cursor-pointer" @click="toggleCollapse">
+    <div class="flex items-center gap-3 p-3 rounded-lg cursor-pointer" :class="component.pendingEntity ? 'bg-error/10 border border-error' : 'bg-base-200'" @click="toggleCollapse">
       <IconLucideChevronRight
         class="w-4 h-4 shrink-0 transition-transform text-base-content/50"
         :class="{ 'rotate-90': !isCollapsed }"
@@ -22,9 +22,18 @@
       />
       <div class="flex-1 min-w-0">
         <div class="flex items-center gap-2 flex-wrap">
-          <h3 class="text-sm font-semibold text-base-content truncate">
+          <h3 class="text-sm font-semibold truncate" :class="component.pendingEntity ? 'text-error' : 'text-base-content'">
             {{ component.name }}
           </h3>
+          <button
+            v-if="component.pendingEntity"
+            type="button"
+            class="badge badge-error badge-sm cursor-pointer hover:badge-outline transition-colors"
+            title="Cliquer pour associer un item"
+            @click.stop="$emit('fill-entity', component.linkId, component.modelTypeId)"
+          >
+            À remplir
+          </button>
           <span v-if="component.reference" class="badge badge-outline badge-xs">{{ component.reference }}</span>
           <span v-if="component.prix" class="badge badge-primary badge-xs">{{ component.prix }}€</span>
         </div>
@@ -54,7 +63,7 @@
     </div>
 
     <!-- Expanded content -->
-    <div v-show="!isCollapsed" class="mt-3 space-y-4 pl-7">
+    <div v-show="!isCollapsed && !component.pendingEntity" class="mt-3 space-y-4 pl-7">
       <!-- Info fields -->
       <div v-if="isEditMode" class="grid grid-cols-1 md:grid-cols-2 gap-3">
         <div class="form-control">
@@ -191,9 +200,27 @@
         :fields="displayedCustomFields"
         :is-edit-mode="isEditMode"
         :columns="2"
+        title="Champs personnalisés item"
+        :editable="false"
         @field-blur="updateComponentCustomField"
       />
 
+      <template v-if="mergedContextFields.length">
+        <div class="divider my-4 text-xs text-base-content/50">
+          Champs personnalisés machine
+        </div>
+        <CustomFieldDisplay
+          :fields="mergedContextFields"
+          :is-edit-mode="isEditMode"
+          :columns="2"
+          :show-header="false"
+          :with-top-border="false"
+          :editable="true"
+          :emit-blur="false"
+          @field-input="queueContextCustomFieldUpdate"
+        />
+      </template>
+
       <!-- Documents -->
       <div class="space-y-2">
         <div class="flex items-center justify-between">
@@ -241,6 +268,7 @@
             @update="updatePiece"
             @edit="editPiece"
             @custom-field-update="updatePieceCustomField"
+            @fill-entity="(linkId, typeId) => $emit('fill-entity', linkId, typeId)"
           />
         </div>
       </div>
@@ -276,6 +304,7 @@
             @update="$emit('update', $event)"
             @edit-piece="$emit('edit-piece', $event)"
             @custom-field-update="$emit('custom-field-update', $event)"
+            @fill-entity="(linkId, typeId) => $emit('fill-entity', linkId, typeId)"
           />
         </div>
       </div>
@@ -299,7 +328,6 @@ import {
   parseConstructeurLinksFromApi,
 } from '~/shared/constructeurUtils'
 import {
-  formatSize,
   shouldInlinePdf,
   documentPreviewSrc,
   documentIcon,
@@ -308,6 +336,12 @@ import {
 import { useEntityDocuments } from '~/composables/useEntityDocuments'
 import { useEntityProductDisplay } from '~/composables/useEntityProductDisplay'
 import { useEntityCustomFields } from '~/composables/useEntityCustomFields'
+import {
+  mergeFieldDefinitionsWithValues,
+  dedupeMergedFields,
+  resolveCustomFieldId,
+  resolveFieldId,
+} from '~/shared/utils/entityCustomFieldLogic'
 
 const props = defineProps({
   component: { type: Object, required: true },
@@ -317,7 +351,7 @@ const props = defineProps({
   toggleToken: { type: Number, default: 0 },
 })
 
-const emit = defineEmits(['update', 'edit-piece', 'custom-field-update', 'delete'])
+const emit = defineEmits(['update', 'edit-piece', 'custom-field-update', 'delete', 'fill-entity'])
 
 // --- Shared composables ---
 const {
@@ -347,6 +381,34 @@ const {
   updateCustomField: updateComponentCustomField,
 } = useEntityCustomFields({ entity: () => props.component, entityType: 'composant' })
 
+const mergedContextFields = computed(() => {
+  const definitions = props.component?.contextCustomFields ?? []
+  const values = props.component?.contextCustomFieldValues ?? []
+  if (!definitions.length && !values.length) return []
+  return dedupeMergedFields(
+    mergeFieldDefinitionsWithValues(definitions, values),
+  )
+})
+
+const queueContextCustomFieldUpdate = (field, value) => {
+  const linkId = props.component?.linkId
+  if (!linkId || !field) return
+
+  const customFieldId = resolveCustomFieldId(field)
+  const customFieldValueId = resolveFieldId(field)
+  if (!customFieldId && !customFieldValueId) return
+
+  field.value = value
+  emit('custom-field-update', {
+    entityType: 'machineComponentLink',
+    entityId: linkId,
+    fieldId: customFieldId,
+    customFieldValueId,
+    value: value ?? '',
+    fieldName: field.name || field.customField?.name || 'Champ contextuel',
+  })
+}
+
 // --- Document edit modal ---
 const editingDocument = ref(null)
 const editModalVisible = ref(false)

frontend/app/components/PieceItem.vue

@@ -14,7 +14,7 @@
     />
 
     <!-- Piece Header (collapsible, same pattern as ComponentItem) -->
-    <div class="flex items-start justify-between p-4 bg-base-200 rounded-lg">
+    <div class="flex items-start justify-between p-4 rounded-lg" :class="piece._emptySlot || piece.pendingEntity ? 'bg-error/10 border border-error' : 'bg-base-200'">
       <div class="flex items-start gap-3 flex-1 min-w-0">
         <button
           type="button"
@@ -28,8 +28,18 @@
           <span class="sr-only">{{ isCollapsed ? 'Déplier' : 'Replier' }} la pièce</span>
         </button>
         <div class="flex-1 min-w-0">
-          <h3 class="text-lg font-semibold">
+          <h3 class="text-lg font-semibold" :class="{ 'text-error': piece._emptySlot || piece.pendingEntity }">
             {{ pieceData.name }}
+            <span v-if="piece._emptySlot" class="text-sm font-semibold text-error ml-1">— manquant</span>
+            <button
+              v-if="piece.pendingEntity"
+              type="button"
+              class="badge badge-error badge-sm cursor-pointer hover:badge-outline transition-colors ml-1"
+              title="Cliquer pour associer un item"
+              @click.stop="$emit('fill-entity', piece.linkId, piece.modelTypeId)"
+            >
+              À remplir
+            </button>
             <span
               v-if="displayQuantity > 1"
               class="text-sm font-normal text-base-content/60 ml-1"
@@ -76,7 +86,7 @@
       </button>
     </div>
 
-    <div v-show="!isCollapsed" class="space-y-4">
+    <div v-show="!isCollapsed && !piece.pendingEntity" class="space-y-4">
       <div class="p-4 bg-base-100 border border-base-200 rounded-lg">
         <div class="space-y-2 text-sm">
       <div v-if="isEditMode" class="form-control">
@@ -231,10 +241,28 @@
     <CustomFieldDisplay
       :fields="displayedCustomFields"
       :is-edit-mode="isEditMode"
+      title="Champs personnalisés item"
+      :editable="false"
       @field-input="handleCustomFieldInput"
       @field-blur="handleCustomFieldBlur"
     />
 
+    <template v-if="mergedContextFields.length">
+      <div class="divider my-4 text-xs text-base-content/50">
+        Champs personnalisés machine
+      </div>
+      <CustomFieldDisplay
+        :fields="mergedContextFields"
+        :is-edit-mode="isEditMode"
+        :columns="2"
+        :show-header="false"
+        :with-top-border="false"
+        :editable="true"
+        :emit-blur="false"
+        @field-input="queueContextCustomFieldUpdate"
+      />
+    </template>
+
     <div class="mt-4 pt-4 border-t border-base-200 space-y-3">
       <div class="flex items-center justify-between">
         <h5 class="text-sm font-medium text-base-content/80">Documents</h5>
@@ -294,6 +322,9 @@ import {
 import {
   resolveFieldId,
   resolveFieldReadOnly,
+  resolveCustomFieldId,
+  mergeFieldDefinitionsWithValues,
+  dedupeMergedFields,
 } from '~/shared/utils/entityCustomFieldLogic'
 import { useEntityDocuments } from '~/composables/useEntityDocuments'
 import { useEntityProductDisplay } from '~/composables/useEntityProductDisplay'
@@ -307,7 +338,7 @@ const props = defineProps({
   toggleToken: { type: Number, default: 0 },
 })
 
-const emit = defineEmits(['update', 'edit', 'custom-field-update', 'delete'])
+const emit = defineEmits(['update', 'edit', 'custom-field-update', 'delete', 'fill-entity'])
 
 // --- Local reactive data for editing ---
 const pieceData = reactive({
@@ -365,6 +396,34 @@ const {
   updateCustomField,
 } = useEntityCustomFields({ entity: () => props.piece, entityType: 'piece' })
 
+const mergedContextFields = computed(() => {
+  const definitions = props.piece?.contextCustomFields ?? []
+  const values = props.piece?.contextCustomFieldValues ?? []
+  if (!definitions.length && !values.length) return []
+  return dedupeMergedFields(
+    mergeFieldDefinitionsWithValues(definitions, values),
+  )
+})
+
+const queueContextCustomFieldUpdate = (field, value) => {
+  const linkId = props.piece?.linkId
+  if (!linkId || !field) return
+
+  const customFieldId = resolveCustomFieldId(field)
+  const customFieldValueId = resolveFieldId(field)
+  if (!customFieldId && !customFieldValueId) return
+
+  field.value = value
+  emit('custom-field-update', {
+    entityType: 'machinePieceLink',
+    entityId: linkId,
+    fieldId: customFieldId,
+    customFieldValueId,
+    value: value ?? '',
+    fieldName: field.name || field.customField?.name || 'Champ contextuel',
+  })
+}
+
 // --- Document edit modal ---
 const editingDocument = ref(null)
 const editModalVisible = ref(false)

frontend/app/components/PieceModelStructureEditor.vue

@@ -124,6 +124,11 @@
                 Obligatoire
               </div>
 
+              <div class="flex items-center gap-2 text-xs">
+                <input v-model="field.machineContextOnly" type="checkbox" class="checkbox checkbox-xs">
+                Contexte machine uniquement
+              </div>
+
               <textarea
                 v-if="field.type === 'select'"
                 v-model="field.optionsText"

frontend/app/components/StructureNodeEditor.vue

@@ -121,6 +121,10 @@
                     <input v-model="field.required" type="checkbox" class="checkbox checkbox-xs" />
                     Obligatoire
                   </div>
+                  <div class="flex items-center gap-2 text-xs">
+                    <input v-model="field.machineContextOnly" type="checkbox" class="checkbox checkbox-xs">
+                    Contexte machine uniquement
+                  </div>
                   <textarea
                     v-if="field.type === 'select'"
                     v-model="field.optionsText"

frontend/app/components/common/CustomFieldDisplay.vue

@@ -1,10 +1,10 @@
 <template>
   <div
     v-if="fields.length"
-    class="mt-4 pt-4 border-t border-base-200"
+    :class="containerClass"
   >
-    <h5 class="text-sm font-medium text-base-content/80 mb-3">
-      Champs personnalisés
+    <h5 v-if="showHeader" class="text-sm font-medium text-base-content/80 mb-3">
+      {{ title }}
     </h5>
     <div :class="layoutClass">
       <div
@@ -23,7 +23,7 @@
         </label>
 
         <!-- Mode édition -->
-        <template v-if="isEditMode && !resolveFieldReadOnly(field)">
+        <template v-if="isFieldEditable(field)">
           <!-- Champ de type TEXT -->
           <input
             v-if="resolveFieldType(field) === 'text'"
@@ -142,6 +142,11 @@ const props = defineProps<{
   fields: any[]
   isEditMode: boolean
   columns?: 1 | 2
+  title?: string
+  showHeader?: boolean
+  withTopBorder?: boolean
+  editable?: boolean
+  emitBlur?: boolean
 }>()
 
 const emit = defineEmits<{
@@ -155,6 +160,20 @@ const layoutClass = computed(() =>
     : 'space-y-3',
 )
 
+const title = computed(() => props.title ?? 'Champs personnalisés')
+const showHeader = computed(() => props.showHeader ?? true)
+const containerClass = computed(() =>
+  props.withTopBorder === false
+    ? ''
+    : 'mt-4 pt-4 border-t border-base-200',
+)
+const editable = computed(() => props.editable ?? true)
+const emitBlur = computed(() => props.emitBlur ?? true)
+
+function isFieldEditable(field: any) {
+  return props.isEditMode && editable.value && !resolveFieldReadOnly(field)
+}
+
 function onInput(field: any, value: string) {
   field.value = value
   emit('field-input', field, value)
@@ -164,10 +183,14 @@ function onBooleanChange(field: any, checked: boolean) {
   const value = checked ? 'true' : 'false'
   field.value = value
   emit('field-input', field, value)
-  emit('field-blur', field)
+  if (emitBlur.value) {
+    emit('field-blur', field)
+  }
 }
 
 function onBlur(field: any) {
-  emit('field-blur', field)
+  if (emitBlur.value) {
+    emit('field-blur', field)
+  }
 }
 </script>

frontend/app/components/machine/AddEntityToMachineModal.vue

@@ -49,6 +49,12 @@
         />
       </div>
 
+      <div v-if="selectedTypeName && !selectedEntityId && !loadingEntities" class="bg-warning/10 border border-warning rounded-lg p-3 mb-4">
+        <p class="text-sm text-warning font-medium">
+          Aucun item sélectionné — la catégorie sera ajoutée avec le statut "À remplir".
+        </p>
+      </div>
+
       <!-- Summary of selection -->
       <div v-if="selectedEntitySummary" class="bg-base-200 rounded-lg p-3 mb-4">
         <p class="text-sm font-medium">{{ selectedEntitySummary.name }}</p>
@@ -64,10 +70,10 @@
         <button
           type="button"
           class="btn btn-primary"
-          :disabled="!selectedEntityId"
+          :disabled="!selectedTypeId"
           @click="handleConfirm"
         >
-          Ajouter
+          {{ selectedEntityId ? 'Ajouter' : 'Ajouter (catégorie seule)' }}
         </button>
       </div>
     </div>
@@ -90,11 +96,12 @@ type EntityKind = 'component' | 'piece' | 'product'
 const props = defineProps<{
   open: boolean
   entityKind: EntityKind
+  prefillTypeId?: string
 }>()
 
 const emit = defineEmits<{
   close: []
-  confirm: [entityId: string]
+  confirm: [payload: { entityId?: string; modelTypeId: string; modelTypeName: string }]
 }>()
 
 const selectedTypeId = ref('')
@@ -166,6 +173,10 @@ watch(() => props.open, async (isOpen) => {
   if (props.entityKind === 'component') await loadComponentTypes()
   else if (props.entityKind === 'piece') await loadPieceTypes()
   else await loadProductTypes()
+
+  if (props.prefillTypeId) {
+    selectedTypeId.value = props.prefillTypeId
+  }
 })
 
 // Load entities when type changes
@@ -222,8 +233,12 @@ const handleClose = () => {
 }
 
 const handleConfirm = () => {
-  if (!selectedEntityId.value) return
-  emit('confirm', selectedEntityId.value)
+  if (!selectedTypeId.value) return
+  emit('confirm', {
+    entityId: selectedEntityId.value || undefined,
+    modelTypeId: selectedTypeId.value,
+    modelTypeName: selectedTypeName.value,
+  })
   resetState()
   emit('close')
 }

frontend/app/components/machine/MachineComponentsCard.vue

@@ -28,12 +28,15 @@
         <div v-for="component in components" :key="component.id">
           <ComponentHierarchy
             :components="[component]"
-            :is-edit-mode="false"
+            :is-edit-mode="isEditMode"
             :show-delete="isEditMode"
             :collapse-all="collapsed"
             :toggle-token="collapseToggleToken"
+            @update="$emit('update-component', $event)"
             @edit-piece="$emit('edit-piece', $event)"
+            @custom-field-update="$emit('custom-field-update', $event)"
             @delete="$emit('remove-component', component.linkId || component.id)"
+            @fill-entity="(linkId, typeId) => $emit('fill-entity', linkId, typeId)"
           />
         </div>
       </div>
@@ -68,5 +71,6 @@ defineEmits<{
   'custom-field-update': [fieldUpdate: any]
   'add-component': []
   'remove-component': [linkId: string]
+  'fill-entity': [linkId: string, modelTypeId: string]
 }>()
 </script>

frontend/app/components/machine/MachinePiecesCard.vue

@@ -34,7 +34,9 @@
             :toggle-token="collapseToggleToken"
             @update="$emit('update-piece', $event)"
             @edit="$emit('edit-piece', $event)"
+            @custom-field-update="$emit('custom-field-update', $event)"
             @delete="$emit('remove-piece', piece.linkId || piece.id)"
+            @fill-entity="(linkId, typeId) => $emit('fill-entity', linkId, typeId)"
           />
         </div>
       </div>
@@ -65,7 +67,9 @@ defineEmits<{
   'toggle-collapse': []
   'update-piece': [piece: any]
   'edit-piece': [piece: any]
+  'custom-field-update': [fieldUpdate: any]
   'add-piece': []
   'remove-piece': [linkId: string]
+  'fill-entity': [linkId: string, modelTypeId: string]
 }>()
 </script>

frontend/app/components/machine/MachineProductsCard.vue

@@ -23,14 +23,24 @@
       <div v-if="products.length" class="space-y-3">
         <div
           v-for="product in products"
-          :key="product.id || product.name"
-          class="rounded border border-base-200 bg-base-200/60 p-3 text-sm space-y-2"
+          :key="product.id || product.linkId || product.name"
+          class="rounded border p-3 text-sm space-y-2"
+          :class="product.pendingEntity ? 'border-error bg-error/10' : 'border-base-200 bg-base-200/60'"
         >
           <div class="flex items-center justify-between flex-wrap gap-2">
-            <p class="font-semibold text-base-content">
+            <p class="font-semibold" :class="product.pendingEntity ? 'text-error' : 'text-base-content'">
               {{ product.name }}
             </p>
             <div class="flex items-center gap-2">
+              <button
+                v-if="product.pendingEntity"
+                type="button"
+                class="badge badge-error badge-sm cursor-pointer hover:badge-outline transition-colors"
+                title="Cliquer pour associer un item"
+                @click="$emit('fill-entity', (product.linkId || product.id) as string, product.modelTypeId as string)"
+              >
+                À remplir
+              </button>
               <span v-if="product.groupLabel" class="badge badge-ghost badge-sm">
                 {{ product.groupLabel }}
               </span>
@@ -141,6 +151,9 @@ defineProps<{
     supplierLabel?: string | null
     priceLabel?: string | null
     groupLabel?: string
+    pendingEntity?: boolean
+    modelTypeId?: string | null
+    modelType?: string | null
     documents?: Array<{
       id?: string
       name?: string
@@ -156,6 +169,7 @@ defineProps<{
 defineEmits<{
   'add-product': []
   'remove-product': [linkId: string]
+  'fill-entity': [linkId: string, modelTypeId: string]
 }>()
 
 const previewDocument = ref<any>(null)

frontend/app/composables/useComponentEdit.ts

@@ -288,14 +288,16 @@ export function useComponentEdit(componentId: string) {
     if (!structure?.pieces) return []
     return (structure.pieces as any[]).map((slot: any, i: number) => {
       const edits = slotEdits.pieces[slot.slotId]
+      const selectedPieceId = edits && 'selectedPieceId' in edits ? edits.selectedPieceId : (slot.selectedPieceId ?? null)
       return {
         slotId: slot.slotId,
         typePieceId: slot.typePieceId,
-        selectedPieceId: edits && 'selectedPieceId' in edits ? edits.selectedPieceId : (slot.selectedPieceId ?? null),
+        selectedPieceId,
         selectedPieceName: slot.selectedPieceName ?? null,
         quantity: edits && 'quantity' in edits ? edits.quantity! : (slot.quantity ?? 1),
         position: slot.position ?? i,
         label: pieceTypeLabelMap.value[slot.typePieceId] || `Pièce #${i + 1}`,
+        isEmpty: !selectedPieceId,
       }
     })
   })
@@ -305,14 +307,16 @@ export function useComponentEdit(componentId: string) {
     if (!structure?.products) return []
     return (structure.products as any[]).map((slot: any, i: number) => {
       const edits = slotEdits.products[slot.slotId]
+      const selectedProductId = edits && 'selectedProductId' in edits ? edits.selectedProductId : (slot.selectedProductId ?? null)
       return {
         slotId: slot.slotId,
         typeProductId: slot.typeProductId,
-        selectedProductId: edits && 'selectedProductId' in edits ? edits.selectedProductId : (slot.selectedProductId ?? null),
+        selectedProductId,
         selectedProductName: slot.selectedProductName ?? null,
         familyCode: slot.familyCode,
         position: slot.position ?? i,
         label: productTypeLabelMap.value[slot.typeProductId] || `Produit #${i + 1}`,
+        isEmpty: !selectedProductId,
       }
     })
   })
@@ -322,15 +326,17 @@ export function useComponentEdit(componentId: string) {
     if (!structure?.subcomponents) return []
     return (structure.subcomponents as any[]).map((slot: any, i: number) => {
       const edits = slotEdits.subcomponents[slot.slotId]
+      const selectedComponentId = edits && 'selectedComposantId' in edits ? edits.selectedComposantId : (slot.selectedComponentId ?? null)
       return {
         slotId: slot.slotId,
         typeComposantId: slot.typeComposantId,
-        selectedComponentId: edits && 'selectedComposantId' in edits ? edits.selectedComposantId : (slot.selectedComponentId ?? null),
+        selectedComponentId,
         selectedComponentName: slot.selectedComponentName ?? null,
         alias: slot.alias,
         familyCode: slot.familyCode,
         position: slot.position ?? i,
         label: slot.alias || `Sous-composant #${i + 1}`,
+        isEmpty: !selectedComponentId,
       }
     })
   })

frontend/app/composables/useEntityCustomFields.ts

@@ -45,7 +45,7 @@ export function useEntityCustomFields(deps: EntityCustomFieldsDeps) {
         definitionSources.value,
         entity().customFieldValues,
       ),
-    ),
+    ).filter((field: any) => !field.machineContextOnly && !field.customField?.machineContextOnly),
   )
 
   const candidateCustomFields = computed(() =>

frontend/app/composables/useMachineDetailCustomFields.ts

@@ -44,6 +44,7 @@ export function useMachineDetailCustomFields(deps: MachineDetailCustomFieldsDeps
   // ---------------------------------------------------------------------------
 
   const machineCustomFields = ref<AnyRecord[]>([])
+  const pendingContextFieldUpdates = ref<AnyRecord[]>([])
 
   // ---------------------------------------------------------------------------
   // Computed
@@ -140,7 +141,9 @@ export function useMachineDetailCustomFields(deps: MachineDetailCustomFieldsDeps
 
       return {
         ...normalizedPiece,
-        customFields,
+        customFields: customFields.filter((f: any) => !f.machineContextOnly && !f.customField?.machineContextOnly),
+        contextCustomFields: piece.contextCustomFields ?? [],
+        contextCustomFieldValues: piece.contextCustomFieldValues ?? [],
         documents: piece.documents || [],
         constructeurs: constructeursList,
         constructeur: constructeursList[0] || piece.constructeur || null,
@@ -240,7 +243,9 @@ export function useMachineDetailCustomFields(deps: MachineDetailCustomFieldsDeps
 
       return {
         ...normalizedComponent,
-        customFields,
+        customFields: customFields.filter((f: any) => !f.machineContextOnly && !f.customField?.machineContextOnly),
+        contextCustomFields: component.contextCustomFields ?? [],
+        contextCustomFieldValues: component.contextCustomFieldValues ?? [],
         pieces: piecesTransformed,
         subComponents,
         documents: component.documents || [],
@@ -376,6 +381,83 @@ export function useMachineDetailCustomFields(deps: MachineDetailCustomFieldsDeps
     }
   }
 
+  const handleCustomFieldUpdate = async (fieldUpdate: AnyRecord) => {
+    if (fieldUpdate?.entityType && fieldUpdate?.entityId) {
+      queueContextFieldUpdate(fieldUpdate)
+      return
+    }
+
+    await updatePieceCustomField(fieldUpdate)
+  }
+
+  const queueContextFieldUpdate = (fieldUpdate: AnyRecord) => {
+    const entityType = fieldUpdate.entityType as string | undefined
+    const entityId = fieldUpdate.entityId as string | undefined
+    const fieldId = fieldUpdate.fieldId as string | undefined
+    const customFieldValueId = fieldUpdate.customFieldValueId as string | undefined
+
+    if (!entityType || !entityId || (!fieldId && !customFieldValueId)) return
+
+    const nextUpdate = {
+      entityType,
+      entityId,
+      fieldId,
+      customFieldValueId,
+      value: fieldUpdate.value ?? '',
+      fieldName: fieldUpdate.fieldName ?? 'Champ contextuel',
+    }
+
+    const existingIndex = pendingContextFieldUpdates.value.findIndex(
+      (item) =>
+        item.entityType === entityType &&
+        item.entityId === entityId &&
+        item.fieldId === fieldId &&
+        item.customFieldValueId === customFieldValueId,
+    )
+
+    if (existingIndex >= 0) {
+      pendingContextFieldUpdates.value[existingIndex] = nextUpdate
+      return
+    }
+
+    pendingContextFieldUpdates.value.push(nextUpdate)
+  }
+
+  const clearPendingContextFieldUpdates = () => {
+    pendingContextFieldUpdates.value = []
+  }
+
+  const saveAllContextCustomFields = async () => {
+    const updates = pendingContextFieldUpdates.value.slice()
+    if (!updates.length) return
+
+    try {
+      for (const update of updates) {
+        if (update.customFieldValueId) {
+          await updateCustomFieldValueApi(update.customFieldValueId as string, {
+            value: update.value ?? '',
+          } as any)
+          continue
+        }
+
+        if (!update.fieldId) {
+          continue
+        }
+
+        await upsertCustomFieldValue(
+          update.fieldId as string,
+          update.entityType as string,
+          update.entityId as string,
+          update.value ?? '',
+        )
+      }
+      clearPendingContextFieldUpdates()
+    } catch (error) {
+      console.error('Erreur lors de la sauvegarde batch des champs contextuels:', error)
+      throw error
+    }
+  }
+
   const saveAllMachineCustomFields = async () => {
     if (!machine.value) return
 
@@ -431,6 +513,7 @@ export function useMachineDetailCustomFields(deps: MachineDetailCustomFieldsDeps
   return {
     // State
     machineCustomFields,
+    pendingContextFieldUpdates,
 
     // Computed
     visibleMachineCustomFields,
@@ -444,6 +527,10 @@ export function useMachineDetailCustomFields(deps: MachineDetailCustomFieldsDeps
     setMachineCustomFieldValue,
     updateMachineCustomField,
     updatePieceCustomField,
+    handleCustomFieldUpdate,
+    queueContextFieldUpdate,
+    clearPendingContextFieldUpdates,
     saveAllMachineCustomFields,
+    saveAllContextCustomFields,
   }
 }

frontend/app/composables/useMachineDetailData.ts

@@ -151,13 +151,18 @@ export function useMachineDetailData(machineId: string) {
   const {
     machineCustomFields,
     visibleMachineCustomFields,
+    pendingContextFieldUpdates,
     transformCustomFields,
     transformComponentCustomFields,
     syncMachineCustomFields,
     setMachineCustomFieldValue,
     updateMachineCustomField,
     updatePieceCustomField,
+    handleCustomFieldUpdate,
+    queueContextFieldUpdate,
+    clearPendingContextFieldUpdates,
     saveAllMachineCustomFields,
+    saveAllContextCustomFields,
   } = useMachineDetailCustomFields({
     machine,
     isEditMode,
@@ -193,6 +198,10 @@ export function useMachineDetailData(machineId: string) {
     removePieceLink,
     addProductLink,
     removeProductLink,
+    addComponentLinkCategoryOnly,
+    addPieceLinkCategoryOnly,
+    addProductLinkCategoryOnly,
+    fillEntityLink,
   } = hierarchy
 
   // Keep the product links proxy in sync with the hierarchy's machineProductLinks
@@ -329,10 +338,13 @@ export function useMachineDetailData(machineId: string) {
       // 2. Save all custom field values
       await saveAllMachineCustomFields()
 
-      // 3. Reload machine data to get fresh state
+      // 3. Save contextual custom field values queued from piece/component inputs
+      await saveAllContextCustomFields()
+
+      // 4. Reload machine data to get fresh state
       await loadMachineData()
 
-      // 4. Exit edit mode
+      // 5. Exit edit mode
       isEditMode.value = false
       toast.showSuccess('Machine mise à jour avec succès')
     } catch (error) {
@@ -346,6 +358,7 @@ export function useMachineDetailData(machineId: string) {
   const cancelEdition = () => {
     initMachineFields()
     syncMachineCustomFields()
+    clearPendingContextFieldUpdates()
     constructeurLinks.value = originalConstructeurLinks.value.map(l => ({ ...l }))
     machineConstructeurIds.value = constructeurIdsFromLinks(constructeurLinks.value)
     isEditMode.value = false
@@ -482,7 +495,7 @@ export function useMachineDetailData(machineId: string) {
 
     // UI state
     machineDocumentFiles, machineDocumentsUploading, machineDocumentsLoaded,
-    machineCustomFields, previewDocument, previewVisible,
+    machineCustomFields, pendingContextFieldUpdates, previewDocument, previewVisible,
     isEditMode, debug,
     componentsCollapsed, collapseToggleToken, piecesCollapsed, pieceCollapseToggleToken,
 
@@ -495,7 +508,8 @@ export function useMachineDetailData(machineId: string) {
     findProductById, resolveProductReference, getProductDisplay,
     initMachineFields, getMachineFieldId,
     syncMachineCustomFields, setMachineCustomFieldValue,
-    updateMachineCustomField, updatePieceCustomField,
+    updateMachineCustomField, updatePieceCustomField, handleCustomFieldUpdate,
+    queueContextFieldUpdate, clearPendingContextFieldUpdates, saveAllContextCustomFields,
     refreshMachineDocuments, handleMachineFilesAdded, removeMachineDocument,
     openPreview, closePreview,
     updateMachineInfo, updateComponent, updatePieceFromComponent,
@@ -511,6 +525,8 @@ export function useMachineDetailData(machineId: string) {
     loadMachineData, loadInitialData,
     addComponentLink, removeComponentLink, addPieceLink, removePieceLink,
     addProductLink, removeProductLink, reloadMachineStructure,
+    addComponentLinkCategoryOnly, addPieceLinkCategoryOnly,
+    addProductLinkCategoryOnly, fillEntityLink,
 
     // External
     constructeurs, loadProducts, updateMachineStructure, toast,

frontend/app/composables/useMachineDetailHierarchy.ts

@@ -39,7 +39,7 @@ export function useMachineDetailHierarchy(deps: MachineDetailHierarchyDeps) {
     syncMachineCustomFields,
   } = deps
 
-  const { get, post: apiPost, delete: apiDel } = useApi()
+  const { get, post: apiPost, delete: apiDel, patch: apiPatch } = useApi()
   const toast = useToast()
 
   // ---------------------------------------------------------------------------
@@ -263,6 +263,69 @@ export function useMachineDetailHierarchy(deps: MachineDetailHierarchyDeps) {
     return result
   }
 
+  const addComponentLinkCategoryOnly = async (modelTypeId: string) => {
+    const result: any = await apiPost('/machine_component_links', {
+      machine: `/api/machines/${machineId}`,
+      modelType: `/api/model_types/${modelTypeId}`,
+    })
+    if (result.success) {
+      toast.showSuccess('Catégorie ajoutée — item à remplir')
+      await reloadMachineStructure()
+    } else {
+      toast.showError('Erreur lors de l\'ajout')
+    }
+  }
+
+  const addPieceLinkCategoryOnly = async (modelTypeId: string) => {
+    const result: any = await apiPost('/machine_piece_links', {
+      machine: `/api/machines/${machineId}`,
+      modelType: `/api/model_types/${modelTypeId}`,
+    })
+    if (result.success) {
+      toast.showSuccess('Catégorie ajoutée — item à remplir')
+      await reloadMachineStructure()
+    } else {
+      toast.showError('Erreur lors de l\'ajout')
+    }
+  }
+
+  const addProductLinkCategoryOnly = async (modelTypeId: string) => {
+    const result: any = await apiPost('/machine_product_links', {
+      machine: `/api/machines/${machineId}`,
+      modelType: `/api/model_types/${modelTypeId}`,
+    })
+    if (result.success) {
+      toast.showSuccess('Catégorie ajoutée — item à remplir')
+      await reloadMachineStructure()
+    } else {
+      toast.showError('Erreur lors de l\'ajout')
+    }
+  }
+
+  const fillEntityLink = async (linkId: string, entityId: string, entityKind: string) => {
+    let endpoint = ''
+    let payload: Record<string, string> = {}
+
+    if (entityKind === 'component') {
+      endpoint = `/machine_component_links/${linkId}`
+      payload = { composant: `/api/composants/${entityId}` }
+    } else if (entityKind === 'piece') {
+      endpoint = `/machine_piece_links/${linkId}`
+      payload = { piece: `/api/pieces/${entityId}` }
+    } else {
+      endpoint = `/machine_product_links/${linkId}`
+      payload = { product: `/api/products/${entityId}` }
+    }
+
+    const result: any = await apiPatch(endpoint, payload)
+    if (result.success) {
+      toast.showSuccess('Item associé avec succès')
+      await reloadMachineStructure()
+    } else {
+      toast.showError('Erreur lors de l\'association')
+    }
+  }
+
   const removeProductLink = async (linkId: string) => {
     const result: any = await apiDel(`/machine_product_links/${linkId}`)
     if (result.success) {
@@ -301,6 +364,10 @@ export function useMachineDetailHierarchy(deps: MachineDetailHierarchyDeps) {
     addPieceLink,
     removePieceLink,
     addProductLink,
+    addComponentLinkCategoryOnly,
+    addPieceLinkCategoryOnly,
+    addProductLinkCategoryOnly,
+    fillEntityLink,
     removeProductLink,
   }
 }

frontend/app/composables/useMachineDetailProducts.ts

@@ -103,7 +103,7 @@ export function useMachineDetailProducts(deps: MachineDetailProductsDeps) {
       return {
         id: (resolved?.id as string) || productId || null,
         linkId: (link.id as string) || (typeof link['@id'] === 'string' ? link['@id'].split('/').pop() : null) || null,
-        name: (resolved?.name as string) || 'Produit inconnu',
+        name: (resolved?.name as string) || (link.modelType as AnyRecord)?.name as string || 'Produit inconnu',
         reference: (resolved?.reference as string) || null,
         supplierLabel: resolvedConstructeurs.length
           ? resolvedConstructeurs.map((c) => c.name).filter(Boolean).join(', ') || null
@@ -111,6 +111,9 @@ export function useMachineDetailProducts(deps: MachineDetailProductsDeps) {
         priceLabel: resolved ? getProductPriceLabel(resolved) : null,
         groupLabel: ((resolved?.typeProduct as AnyRecord)?.name as string) || '',
         documents: productId ? (productDocumentsMap.value.get(productId) || []) : [],
+        pendingEntity: (link.pendingEntity as boolean) || false,
+        modelTypeId: (link.modelTypeId as string) || null,
+        modelType: (link.modelType as string) || null,
       }
     })
   })

frontend/app/composables/useMachineDetailUpdates.ts

@@ -73,11 +73,11 @@ export function useMachineDetailUpdates(deps: UseMachineDetailUpdatesDeps) {
   const updateMachineInfo = async () => {
     if (!machine.value) return
     try {
-      const result: any = await updateMachineApi(machine.value.id as string, {
-        name: machineName.value,
-        reference: machineReference.value,
-        siteId: machineSiteId.value || undefined,
-      } as any)
+      const payload: Record<string, unknown> = {}
+      if (machineName.value !== machine.value.name) payload.name = machineName.value
+      if (machineReference.value !== machine.value.reference) payload.reference = machineReference.value
+      if ((machineSiteId.value || undefined) !== ((machine.value.siteId as string) || (machine.value.site as any)?.id || undefined)) payload.siteId = machineSiteId.value || undefined
+      const result: any = await updateMachineApi(machine.value.id as string, payload as any)
       if (result.success) {
         const machinePayload =
           result.data?.machine && typeof result.data.machine === 'object'

frontend/app/composables/useMachineHierarchy.ts

@@ -150,6 +150,30 @@ export const buildMachineHierarchyFromLinks = (
   const createPieceNode = (link: AnyRecord, parentComponentName: string | null = null): AnyRecord | null => {
     if (!link || typeof link !== 'object') return null
 
+    // Category-only link (no entity yet)
+    if (link.pendingEntity || (!link.piece && !link.pieceId)) {
+      const machinePieceLinkId = normalizePieceLinkId(link)
+      const mt = (link.modelType || null) as AnyRecord | null
+      return {
+        id: machinePieceLinkId || `pending-${link.id}`,
+        linkId: machinePieceLinkId,
+        name: mt?.name || 'Catégorie sans item',
+        reference: null,
+        prix: null,
+        pendingEntity: true,
+        modelTypeId: link.modelTypeId || mt?.id || null,
+        modelType: mt,
+        pieceId: null,
+        constructeurs: [],
+        documents: [],
+        customFields: [],
+        parentComponentLinkId: link.parentComponentLinkId || link.parentLinkId || null,
+        parentComponentName,
+        machinePieceLinkId,
+        quantity: 1,
+      }
+    }
+
     const appliedPiece = (link.piece && typeof link.piece === 'object' ? link.piece : {}) as AnyRecord
     const originalPiece = (link.originalPiece && typeof link.originalPiece === 'object' ? link.originalPiece : null) as AnyRecord | null
 
@@ -184,6 +208,8 @@ export const buildMachineHierarchyFromLinks = (
       quantity: typeof link.quantity === 'number' ? link.quantity : 1,
       definition: appliedPiece.definition || originalPiece?.definition || {},
       customFields: appliedPiece.customFields || [],
+      contextCustomFields: link.contextCustomFields || [],
+      contextCustomFieldValues: link.contextCustomFieldValues || [],
     }
 
     const resolvedProductId = resolveIdentifier(appliedPiece.productId, (appliedPiece.product as AnyRecord)?.id, link.productId, (link.product as AnyRecord)?.id, originalPiece?.productId, (originalPiece?.product as AnyRecord)?.id)
@@ -205,6 +231,35 @@ export const buildMachineHierarchyFromLinks = (
   const createComponentNode = (link: AnyRecord): AnyRecord | null => {
     if (!link || typeof link !== 'object') return null
 
+    // Category-only link (no entity yet)
+    if (link.pendingEntity || (!link.composant && !link.composantId)) {
+      const machineComponentLinkId = normalizeComponentLinkId(link)
+      const mt = (link.modelType || null) as AnyRecord | null
+      return {
+        id: machineComponentLinkId || `pending-${link.id}`,
+        linkId: machineComponentLinkId,
+        name: mt?.name || 'Catégorie sans item',
+        reference: null,
+        prix: null,
+        pendingEntity: true,
+        modelTypeId: link.modelTypeId || mt?.id || null,
+        modelType: mt,
+        composantId: null,
+        composant: null,
+        constructeurs: [],
+        documents: [],
+        customFields: [],
+        customFieldValues: [],
+        subComponents: [],
+        pieces: [],
+        overrides: null,
+        parentComponentLinkId: link.parentComponentLinkId || link.parentLinkId || null,
+        machineComponentLinkId,
+        childLinks: [],
+        pieceLinks: [],
+      }
+    }
+
     const appliedComponent = (link.composant && typeof link.composant === 'object' ? link.composant : {}) as AnyRecord
     const originalComponent = (link.originalComposant && typeof link.originalComposant === 'object' ? link.originalComposant : null) as AnyRecord | null
 
@@ -227,11 +282,13 @@ export const buildMachineHierarchyFromLinks = (
       const definition = (def.definition && typeof def.definition === 'object' ? def.definition : def) as AnyRecord
       const resolved = (def.resolvedPiece && typeof def.resolvedPiece === 'object' ? def.resolvedPiece : null) as AnyRecord | null
       const quantity = typeof definition.quantity === 'number' ? definition.quantity : (typeof def.quantity === 'number' ? def.quantity : 1)
+      const isEmpty = !resolved
+      const typePieceName = (resolved?.typePiece as AnyRecord)?.name || (definition.typePiece as AnyRecord)?.name || (def.typePiece as AnyRecord)?.name || null
       return {
         ...(resolved || {}),
         id: resolved?.id || `structure-piece-${composantId}-${index}`,
         pieceId: resolved?.id || null,
-        name: resolved?.name || definition.role || definition.name || def.role || def.name || `Pièce ${index + 1}`,
+        name: resolved?.name || definition.role || definition.name || def.role || def.name || (typePieceName ? `${typePieceName}` : `Pièce ${index + 1}`),
         reference: resolved?.reference || definition.reference || def.reference || null,
         prix: resolved?.prix ?? null,
         constructeurs: resolved?.constructeurs || [],
@@ -243,6 +300,7 @@ export const buildMachineHierarchyFromLinks = (
         parentComponentLinkId: machineComponentLinkId,
         parentComponentName: componentName,
         _structurePiece: true,
+        _emptySlot: isEmpty,
       }
     }) as AnyRecord[]
 
@@ -279,6 +337,8 @@ export const buildMachineHierarchyFromLinks = (
       parentComposantId: resolveIdentifier(appliedComponent.parentComposantId, link.parentComponentId),
       definition: appliedComponent.definition || originalComponent?.definition || {},
       customFields: appliedComponent.customFields || [],
+      contextCustomFields: link.contextCustomFields || [],
+      contextCustomFieldValues: link.contextCustomFieldValues || [],
       pieces,
       subComponents,
       subcomponents: subComponents,

frontend/app/composables/useMaintenance.ts

@@ -0,0 +1,30 @@
+import { ref } from 'vue'
+import { useApi } from './useApi'
+
+const maintenanceEnabled = ref(false)
+
+export function useMaintenance() {
+    const { apiCall } = useApi()
+    const loading = ref(false)
+
+    const fetchStatus = async () => {
+        const res = await apiCall<{ enabled: boolean }>('/admin/maintenance')
+        if (res.success && res.data) {
+            maintenanceEnabled.value = res.data.enabled
+        }
+    }
+
+    const toggle = async () => {
+        loading.value = true
+        try {
+            const res = await apiCall<{ enabled: boolean }>('/admin/maintenance', { method: 'PUT' })
+            if (res.success && res.data) {
+                maintenanceEnabled.value = res.data.enabled
+            }
+        } finally {
+            loading.value = false
+        }
+    }
+
+    return { maintenanceEnabled, loading, fetchStatus, toggle }
+}

frontend/app/composables/usePieceStructureEditorLogic.ts

@@ -88,6 +88,7 @@ const toEditorField = (
     ...(typeof input?.id === 'string' && input.id ? { id: input.id } : {}),
     ...(typeof input?.customFieldId === 'string' && input.customFieldId ? { customFieldId: input.customFieldId } : {}),
     orderIndex: typeof input?.orderIndex === 'number' ? input.orderIndex : index,
+    machineContextOnly: Boolean(input?.machineContextOnly),
   }
 }
 
@@ -162,6 +163,7 @@ const buildPayload = (
         type,
         required,
         orderIndex: index,
+        machineContextOnly: Boolean(field.machineContextOnly),
       }
 
       if (field.id) {
@@ -286,6 +288,7 @@ export function usePieceStructureEditorLogic(deps: Deps) {
     type: 'text',
     required: false,
     optionsText: '',
+    machineContextOnly: false,
     orderIndex,
   })
 

frontend/app/composables/useStructureNodeCrud.ts

@@ -56,6 +56,7 @@ export function useStructureNodeCrud(props: StructureNodeCrudDeps) {
       required: false,
       optionsText: '',
       options: [],
+      machineContextOnly: false,
       orderIndex: nextIndex,
     })
     reindexCustomFields()

frontend/app/middleware/profile.global.ts

@@ -1,4 +1,4 @@
-import { useProfileSession, usePermissions } from "#imports";
+import { useProfileSession, usePermissions, useApi } from "#imports";
 
 export default defineNuxtRouteMiddleware(async (to) => {
   const { ensureSession, activeProfile } = useProfileSession();
@@ -12,9 +12,10 @@ export default defineNuxtRouteMiddleware(async (to) => {
     normalizedPath.startsWith("/profiles") ||
     fullPath.startsWith("/profiles") ||
     routeName.startsWith("profiles");
+  const isMaintenanceRoute = normalizedPath === "/maintenance";
 
   // Redirect to login if no active profile
-  if (!activeProfile.value && !isProfilesRoute) {
+  if (!activeProfile.value && !isProfilesRoute && !isMaintenanceRoute) {
     return navigateTo("/profiles");
   }
 
@@ -29,5 +30,13 @@ export default defineNuxtRouteMiddleware(async (to) => {
       }
     }
 
+    // Maintenance mode check for non-admin users
+    if (!isAdmin.value && !isMaintenanceRoute && !isProfilesRoute) {
+      const { apiCall } = useApi();
+      const res = await apiCall<{ enabled: boolean }>('/maintenance/check');
+      if (res.success && res.data?.enabled) {
+        return navigateTo("/maintenance");
+      }
+    }
   }
 });

frontend/app/pages/admin/index.vue

@@ -1,5 +1,28 @@
 <template>
   <div class="container mx-auto p-6 max-w-6xl">
+    <!-- Maintenance Mode -->
+    <div class="alert mb-6" :class="maintenanceEnabled ? 'alert-warning' : 'alert-info'">
+      <div class="flex items-center justify-between w-full">
+        <div class="flex items-center gap-2">
+          <span class="font-medium">Mode maintenance</span>
+          <span v-if="maintenanceEnabled" class="badge badge-warning badge-sm">Actif</span>
+          <span v-else class="badge badge-ghost badge-sm">Inactif</span>
+        </div>
+        <button
+          class="btn btn-sm"
+          :class="maintenanceEnabled ? 'btn-ghost' : 'btn-warning'"
+          :disabled="maintenanceLoading"
+          @click="handleToggleMaintenance"
+        >
+          <span v-if="maintenanceLoading" class="loading loading-spinner loading-xs" />
+          {{ maintenanceEnabled ? 'Désactiver' : 'Activer' }}
+        </button>
+      </div>
+      <p class="text-sm opacity-70 mt-1">
+        {{ maintenanceEnabled ? 'Seuls les administrateurs peuvent accéder à l\'application.' : 'L\'application est accessible à tous les utilisateurs.' }}
+      </p>
+    </div>
+
     <div class="flex items-center justify-between mb-6">
       <h1 class="text-2xl font-bold">
         Administration des profils
@@ -153,9 +176,14 @@
 <script setup>
 import { ref, computed, onMounted } from 'vue'
 import DataTable from '~/components/common/DataTable.vue'
-import { useAdminProfiles } from '#imports'
+import { useAdminProfiles, useMaintenance } from '#imports'
 
 const { profiles, loading, fetchAll, createProfile, updateRole, setPassword, deactivateProfile } = useAdminProfiles()
+const { maintenanceEnabled, loading: maintenanceLoading, fetchStatus: fetchMaintenanceStatus, toggle: toggleMaintenance } = useMaintenance()
+
+const handleToggleMaintenance = async () => {
+  await toggleMaintenance()
+}
 
 const loaded = ref(false)
 const isLoading = computed(() => loading.value || !loaded.value)
@@ -264,7 +292,7 @@ const handleDeactivate = async (profileId) => {
 }
 
 onMounted(async () => {
-  await fetchAll()
+  await Promise.all([fetchAll(), fetchMaintenanceStatus()])
   loaded.value = true
 })
 </script>

frontend/app/pages/component/[id]/edit.vue

@@ -195,7 +195,7 @@
                 class="form-control"
               >
                 <label class="label">
-                  <span class="label-text text-xs font-medium">{{ slot.label }}</span>
+                  <span class="label-text text-xs font-medium" :class="{ 'text-error font-semibold': slot.isEmpty }">{{ slot.label }}</span>
                 </label>
                 <div class="flex items-start gap-2">
                   <div class="flex-1">
@@ -231,7 +231,7 @@
                 class="form-control"
               >
                 <label class="label">
-                  <span class="label-text text-xs font-medium">{{ slot.label }}</span>
+                  <span class="label-text text-xs font-medium" :class="{ 'text-error font-semibold': slot.isEmpty }">{{ slot.label }}</span>
                 </label>
                 <ProductSelect
                   :model-value="slot.selectedProductId"
@@ -252,7 +252,7 @@
                 class="form-control"
               >
                 <label class="label">
-                  <span class="label-text text-xs font-medium">{{ slot.label }}</span>
+                  <span class="label-text text-xs font-medium" :class="{ 'text-error font-semibold': slot.isEmpty }">{{ slot.label }}</span>
                 </label>
                 <ComposantSelect
                   :model-value="slot.selectedComponentId"

frontend/app/pages/component/[id]/index.vue

@@ -230,7 +230,7 @@
                   class="form-control"
                 >
                   <label class="label">
-                    <span class="label-text text-xs font-medium">{{ slot.label }}</span>
+                    <span class="label-text text-xs font-medium" :class="{ 'text-error font-semibold': slot.isEmpty }">{{ slot.label }}</span>
                   </label>
                   <template v-if="isEditMode">
                     <div class="flex items-start gap-2">
@@ -255,9 +255,12 @@
                       </div>
                     </div>
                   </template>
-                  <div v-else class="input input-bordered input-sm md:input-md bg-base-200 flex items-center gap-2">
-                    {{ slot.selectedPieceName || '— Non sélectionné' }}
-                    <span v-if="slot.quantity > 1" class="badge badge-sm">x{{ slot.quantity }}</span>
+                  <div v-else class="input input-bordered input-sm md:input-md flex items-center gap-2" :class="slot.isEmpty ? 'border-error bg-error/10 text-error font-semibold' : 'bg-base-200'">
+                    <template v-if="slot.isEmpty">{{ slot.label }} — manquant</template>
+                    <template v-else>
+                      {{ slot.selectedPieceName }}
+                      <span v-if="slot.quantity > 1" class="badge badge-sm">x{{ slot.quantity }}</span>
+                    </template>
                   </div>
                 </div>
               </div>
@@ -272,7 +275,7 @@
                   class="form-control"
                 >
                   <label class="label">
-                    <span class="label-text text-xs font-medium">{{ slot.label }}</span>
+                    <span class="label-text text-xs font-medium" :class="{ 'text-error font-semibold': slot.isEmpty }">{{ slot.label }}</span>
                   </label>
                   <template v-if="isEditMode">
                     <ProductSelect
@@ -282,8 +285,9 @@
                       @update:model-value="(value) => setProductSlotSelection(slot.slotId, value)"
                     />
                   </template>
-                  <div v-else class="input input-bordered input-sm md:input-md bg-base-200 flex items-center">
-                    {{ slot.selectedProductName || '— Non sélectionné' }}
+                  <div v-else class="input input-bordered input-sm md:input-md flex items-center" :class="slot.isEmpty ? 'border-error bg-error/10 text-error font-semibold' : 'bg-base-200'">
+                    <template v-if="slot.isEmpty">{{ slot.label }} — manquant</template>
+                    <template v-else>{{ slot.selectedProductName }}</template>
                   </div>
                 </div>
               </div>
@@ -298,7 +302,7 @@
                   class="form-control"
                 >
                   <label class="label">
-                    <span class="label-text text-xs font-medium">{{ slot.label }}</span>
+                    <span class="label-text text-xs font-medium" :class="{ 'text-error font-semibold': slot.isEmpty }">{{ slot.label }}</span>
                   </label>
                   <template v-if="isEditMode">
                     <ComposantSelect
@@ -308,8 +312,9 @@
                       @update:model-value="(value) => setSubcomponentSlotSelection(slot.slotId, value)"
                     />
                   </template>
-                  <div v-else class="input input-bordered input-sm md:input-md bg-base-200 flex items-center">
-                    {{ slot.selectedComponentName || '— Non sélectionné' }}
+                  <div v-else class="input input-bordered input-sm md:input-md flex items-center" :class="slot.isEmpty ? 'border-error bg-error/10 text-error font-semibold' : 'bg-base-200'">
+                    <template v-if="slot.isEmpty">{{ slot.label }} — manquant</template>
+                    <template v-else>{{ slot.selectedComponentName }}</template>
                   </div>
                 </div>
               </div>

frontend/app/pages/machine/[id].vue

@@ -100,6 +100,7 @@
         :is-edit-mode="d.isEditMode.value"
         @add-product="openAddModal('product')"
         @remove-product="async (id) => { await d.removeProductLink(id); refreshVersions() }"
+        @fill-entity="(linkId, typeId) => handleFillEntity(linkId, 'product', typeId)"
       />
 
       <!-- Components Section -->
@@ -112,9 +113,10 @@
         @toggle-collapse="d.toggleAllComponents"
         @update-component="d.updateComponent"
         @edit-piece="d.updatePieceFromComponent"
-        @custom-field-update="d.updatePieceCustomField"
+        @custom-field-update="d.handleCustomFieldUpdate"
         @add-component="openAddModal('component')"
         @remove-component="async (id) => { await d.removeComponentLink(id); refreshVersions() }"
+        @fill-entity="(linkId, typeId) => handleFillEntity(linkId, 'component', typeId)"
       />
 
       <!-- Machine Pieces Section -->
@@ -126,9 +128,10 @@
         :collapse-toggle-token="d.pieceCollapseToggleToken.value"
         @update-piece="d.updatePieceInfo"
         @edit-piece="d.editPiece"
-        @custom-field-update="d.updatePieceCustomField"
+        @custom-field-update="d.handleCustomFieldUpdate"
         @add-piece="openAddModal('piece')"
         @remove-piece="async (id) => { await d.removePieceLink(id); refreshVersions() }"
+        @fill-entity="(linkId, typeId) => handleFillEntity(linkId, 'piece', typeId)"
         @toggle-collapse="d.toggleAllPieces"
       />
 
@@ -136,7 +139,8 @@
       <AddEntityToMachineModal
         :open="addModalOpen"
         :entity-kind="addModalKind"
-        @close="addModalOpen = false"
+        :prefill-type-id="fillTypeId"
+        @close="addModalOpen = false; fillLinkId = ''; fillTypeId = ''"
         @confirm="handleAddEntity"
       />
 
@@ -277,6 +281,8 @@ const historyFieldLabels = {
 
 const addModalOpen = ref(false)
 const addModalKind = ref('component')
+const fillLinkId = ref('')
+const fillTypeId = ref('')
 
 const openAddModal = (kind) => {
   addModalKind.value = kind
@@ -288,17 +294,40 @@ const handleRemoveConstructeurLink = (constructeurId) => {
   d.handleMachineConstructeurChange(ids)
 }
 
-const handleAddEntity = async (entityId) => {
-  if (addModalKind.value === 'component') {
-    await d.addComponentLink(entityId)
-  } else if (addModalKind.value === 'piece') {
-    await d.addPieceLink(entityId)
+const handleAddEntity = async (payload) => {
+  const { entityId, modelTypeId } = payload
+
+  if (fillLinkId.value) {
+    await d.fillEntityLink(fillLinkId.value, entityId, addModalKind.value)
+    fillLinkId.value = ''
+    fillTypeId.value = ''
+  } else if (entityId) {
+    if (addModalKind.value === 'component') {
+      await d.addComponentLink(entityId)
+    } else if (addModalKind.value === 'piece') {
+      await d.addPieceLink(entityId)
+    } else {
+      await d.addProductLink(entityId)
+    }
   } else {
-    await d.addProductLink(entityId)
+    if (addModalKind.value === 'component') {
+      await d.addComponentLinkCategoryOnly(modelTypeId)
+    } else if (addModalKind.value === 'piece') {
+      await d.addPieceLinkCategoryOnly(modelTypeId)
+    } else {
+      await d.addProductLinkCategoryOnly(modelTypeId)
+    }
   }
   refreshVersions()
 }
 
+const handleFillEntity = (linkId, entityKind, modelTypeId) => {
+  fillLinkId.value = linkId
+  fillTypeId.value = modelTypeId
+  addModalKind.value = entityKind
+  addModalOpen.value = true
+}
+
 const machineViewTitle = computed(() => {
   return d.isEditMode.value ? 'Modification de la machine' : 'Détails de la machine'
 })

frontend/app/pages/maintenance.vue

@@ -0,0 +1,21 @@
+<template>
+  <div class="min-h-screen flex items-center justify-center bg-base-200">
+    <div class="text-center max-w-md">
+      <h1 class="text-4xl font-bold mb-4">
+        Maintenance
+      </h1>
+      <p class="text-lg text-base-content/70 mb-6">
+        L'application est actuellement en maintenance. Veuillez réessayer ultérieurement.
+      </p>
+      <button class="btn btn-primary" @click="retry">
+        Réessayer
+      </button>
+    </div>
+  </div>
+</template>
+
+<script setup>
+const retry = () => {
+  navigateTo('/')
+}
+</script>

frontend/app/pages/piece/[id].vue

@@ -224,7 +224,7 @@
                 class="form-control"
               >
                 <label class="label">
-                  <span class="label-text text-xs font-medium">
+                  <span class="label-text text-xs font-medium" :class="{ 'text-error font-semibold': !productSelections[entry.index] }">
                     {{ entry.label }}
                   </span>
                 </label>
@@ -244,10 +244,11 @@
                 class="form-control"
               >
                 <label class="label">
-                  <span class="label-text text-xs font-medium">{{ entry.label }}</span>
+                  <span class="label-text text-xs font-medium" :class="{ 'text-error font-semibold': !productSelectionLabels[index] }">{{ entry.label }}</span>
                 </label>
-                <div class="input input-bordered input-sm md:input-md bg-base-200 flex items-center">
-                  {{ productSelectionLabels[index] || '— Non sélectionné' }}
+                <div class="input input-bordered input-sm md:input-md flex items-center" :class="productSelectionLabels[index] ? 'bg-base-200' : 'border-error bg-error/10 text-error font-semibold'">
+                  <template v-if="!productSelectionLabels[index]">{{ entry.label }} — manquant</template>
+                  <template v-else>{{ productSelectionLabels[index] }}</template>
                 </div>
               </div>
             </div>

frontend/app/shared/model/componentStructure.ts

@@ -98,6 +98,7 @@ export const normalizeStructureForEditor = (input: any): ComponentModelStructure
       name: field.name,
       type: field.type,
       required: field.required,
+      machineContextOnly: !!field.machineContextOnly,
       options,
       defaultValue,
       optionsText,
@@ -141,6 +142,7 @@ export const normalizeStructureForSave = (input: any): any => {
     const value: Record<string, any> = {
       type: field.type,
       required: !!field.required,
+      machineContextOnly: !!field.machineContextOnly,
     }
     if (field.options && field.options.length) {
       value.options = field.options

frontend/app/shared/model/componentStructureHydrate.ts

@@ -78,10 +78,18 @@ export const hydrateCustomFields = (fields: any[]): any[] => {
     const customFieldId = typeof field?.customFieldId === 'string' ? field.customFieldId : undefined
     const orderIndex = typeof field?.orderIndex === 'number' ? field.orderIndex : index
 
+    const machineContextOnly =
+      typeof field?.machineContextOnly === 'boolean'
+        ? field.machineContextOnly
+        : typeof valueObject?.machineContextOnly === 'boolean'
+          ? valueObject.machineContextOnly
+          : false
+
     return {
       name,
       type,
       required,
+      machineContextOnly,
       options,
       optionsText,
       defaultValue,
@@ -153,6 +161,7 @@ export const mapComponentCustomFields = (fields: any[]) => {
       name: typeof field?.name === 'string' ? field.name : '',
       type: field?.type ?? 'text',
       required: !!field?.required,
+      machineContextOnly: !!field?.machineContextOnly,
       options: Array.isArray(field?.options) ? field.options : [],
       optionsText: typeof field?.optionsText === 'string' ? field.optionsText : '',
       defaultValue,

frontend/app/shared/model/componentStructureSanitize.ts

@@ -85,7 +85,10 @@ export const sanitizeCustomFields = (fields: any[]): ComponentModelCustomField[]
         }
       }
 
-      const result: ComponentModelCustomField = { name, type, required }
+      const machineContextOnly =
+        typeof valueObject?.machineContextOnly === 'boolean' ? valueObject.machineContextOnly : !!field?.machineContextOnly
+
+      const result: ComponentModelCustomField = { name, type, required, machineContextOnly }
       if (options) {
         result.options = options
       }

frontend/app/shared/model/pieceProductStructure.ts

@@ -82,7 +82,7 @@ const sanitizePieceCustomFields = (fields: any[]): PieceModelCustomField[] => {
         options = parsed.length > 0 ? parsed : undefined
       }
 
-      const result: PieceModelCustomField = { name, type, required }
+      const result: PieceModelCustomField = { name, type, required, machineContextOnly: !!field?.machineContextOnly }
       if (options) {
         result.options = options
       }
@@ -131,6 +131,7 @@ const hydratePieceCustomFields = (fields: any[]): PieceModelStructureEditorField
     name: field?.name ?? '',
     type: field?.type ?? 'text',
     required: !!field?.required,
+    machineContextOnly: !!field?.machineContextOnly,
     options: Array.isArray(field?.options) ? field.options : undefined,
     optionsText: typeof field?.optionsText === 'string'
       ? field.optionsText

frontend/app/shared/types/inventory.ts

@@ -10,6 +10,7 @@ export interface ComponentModelCustomField {
   id?: string
   customFieldId?: string
   orderIndex?: number
+  machineContextOnly?: boolean
   key?: string
   value?: unknown
 }
@@ -58,6 +59,7 @@ export interface PieceModelCustomField {
   required: boolean
   options?: string[]
   orderIndex?: number
+  machineContextOnly?: boolean
   key?: string
   value?: unknown
   defaultValue?: string | null

frontend/nuxt.config.ts

@@ -3,12 +3,14 @@ import { readFileSync } from 'node:fs'
 import { dirname, resolve } from 'node:path'
 import { fileURLToPath } from 'node:url'
 
-// Lire la version depuis le fichier VERSION à la racine du projet parent
+// Lire la version depuis config/version.yaml à la racine du projet parent
 const getAppVersion = (): string => {
   try {
     const __dirname = dirname(fileURLToPath(import.meta.url))
-    const versionPath = resolve(__dirname, '..', 'VERSION')
-    return readFileSync(versionPath, 'utf-8').trim()
+    const versionPath = resolve(__dirname, '..', 'config', 'version.yaml')
+    const content = readFileSync(versionPath, 'utf-8')
+    const match = content.match(/app\.version:\s*'([^']+)'/)
+    return match ? match[1] : '0.0.0'
   } catch {
     return '0.0.0'
   }

infra/prod/Dockerfile

@@ -19,7 +19,6 @@ COPY migrations migrations/
 COPY public public/
 COPY src src/
 COPY templates templates/
-COPY VERSION VERSION
 
 RUN composer dump-autoload --optimize --no-dev
 
@@ -31,6 +30,7 @@ COPY frontend/package.json frontend/package-lock.json ./
 RUN npm ci
 
 COPY frontend/ ./
+COPY config/version.yaml /app/config/version.yaml
 ENV CI=1 \
     NUXT_TELEMETRY_DISABLED=1 \
     NUXT_PUBLIC_API_BASE_URL=/api \
@@ -61,8 +61,9 @@ RUN ln -sf /dev/stdout /var/log/nginx/access.log \
 RUN rm -f /etc/nginx/sites-enabled/default
 
 # Configs
-COPY deploy/docker/supervisord.conf /etc/supervisor/conf.d/app.conf
-COPY deploy/docker/nginx.conf /etc/nginx/sites-enabled/inventory.conf
+COPY infra/prod/supervisord.conf /etc/supervisor/conf.d/app.conf
+COPY infra/prod/nginx.conf /etc/nginx/sites-enabled/inventory.conf
+COPY infra/prod/maintenance.html /var/www/html/public/maintenance.html
 
 # Backend from stage 1
 COPY --from=backend-build /app /var/www/html

infra/prod/deploy.sh

@@ -8,6 +8,9 @@ export INVENTORY_IMAGE_TAG="$TAG"
 
 echo "==> Deploying inventory:${TAG}..."
 
+echo "==> Enabling maintenance mode..."
+touch maintenance.on
+
 echo "==> Pulling image..."
 sudo docker compose pull
 
@@ -17,6 +20,10 @@ sudo docker compose up -d
 echo "==> Waiting for container to be ready..."
 sleep 3
 
+echo "==> Extracting maintenance page..."
+mkdir -p public
+sudo docker compose cp app:/var/www/html/public/maintenance.html public/maintenance.html
+
 echo "==> Running migrations..."
 sudo docker compose exec -T -u www-data app php bin/console doctrine:migrations:migrate --no-interaction
 
@@ -24,5 +31,8 @@ echo "==> Clearing cache..."
 sudo docker compose exec -T -u www-data app php bin/console cache:clear --env=prod
 sudo docker compose exec -T -u www-data app php bin/console cache:warmup --env=prod
 
-VERSION=$(sudo docker compose exec -T app cat VERSION)
+echo "==> Disabling maintenance mode..."
+rm -f maintenance.on
+
+VERSION=$(sudo docker compose exec -T app cat config/version.yaml | grep 'app.version' | awk -F"'" '{print $2}')
 echo "==> Deployed v${VERSION}"

infra/prod/maintenance.html

@@ -0,0 +1,49 @@
+<!DOCTYPE html>
+<html lang="fr">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Maintenance en cours</title>
+    <style>
+        body {
+            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
+            background-color: #f3f4f6;
+            display: flex;
+            align-items: center;
+            justify-content: center;
+            min-height: 100vh;
+            margin: 0;
+        }
+        .container {
+            background: #fff;
+            border-radius: 12px;
+            box-shadow: 0 4px 24px rgba(0,0,0,0.10);
+            padding: 48px 40px;
+            max-width: 480px;
+            text-align: center;
+        }
+        .icon {
+            font-size: 48px;
+            margin-bottom: 16px;
+        }
+        h1 {
+            font-size: 24px;
+            color: #111827;
+            margin: 0 0 12px;
+        }
+        p {
+            font-size: 16px;
+            color: #6b7280;
+            margin: 0;
+            line-height: 1.6;
+        }
+    </style>
+</head>
+<body>
+    <div class="container">
+        <div class="icon">&#128736;</div>
+        <h1>Maintenance en cours</h1>
+        <p>L'application est temporairement indisponible pour mise à jour. Elle sera de retour dans quelques instants.</p>
+    </div>
+</body>
+</html>

infra/prod/nginx-proxy.conf

@@ -0,0 +1,30 @@
+server {
+    listen 80;
+    listen [::]:80;
+    server_name inventory.malio-dev.fr;
+
+    root /var/www/inventory/public;
+
+    # Maintenance mode
+    if (-f /var/www/inventory/maintenance.on) {
+        return 503;
+    }
+
+    error_page 503 @maintenance;
+
+    location @maintenance {
+        rewrite ^(.*)$ /maintenance.html break;
+    }
+
+    location = /maintenance.html {
+        internal;
+    }
+
+    location / {
+        proxy_pass http://127.0.0.1:8082;
+        proxy_set_header Host $host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto $scheme;
+    }
+}

infra/prod/nginx.conf

@@ -2,6 +2,23 @@ server {
     listen 80;
     server_name _;
 
+    # Maintenance mode
+    if (-f /var/www/html/maintenance.on) {
+        return 503;
+    }
+
+    error_page 503 @maintenance;
+
+    location @maintenance {
+        root /var/www/html/public;
+        rewrite ^(.*)$ /maintenance.html break;
+    }
+
+    location = /maintenance.html {
+        root /var/www/html/public;
+        internal;
+    }
+
     root /var/www/html/frontend/.output/public;
     index index.html;
 

makefile

@@ -1,6 +1,6 @@
 # Permet d'utiliser un .env.docker.local pour override
-ENV_DEFAULT = docker/.env.docker
-ENV_LOCAL   = docker/.env.docker.local
+ENV_DEFAULT = infra/dev/.env.docker
+ENV_LOCAL   = infra/dev/.env.docker.local
 ENV_FILE    := $(if $(wildcard $(ENV_LOCAL)),$(ENV_LOCAL),$(ENV_DEFAULT))
 
 # Permet d'avoir les variables du fichier .env.docker.local
@@ -25,13 +25,13 @@ DATA_SQL_NORM				?= data_norm.sql
 #========================================================================================
 
 env-init:
-	@mkdir -p docker
+	@mkdir -p infra/dev
 	@cp --update=none $(ENV_DEFAULT) $(ENV_LOCAL)
 
 # Lance le container
 start: env-init
 	@echo "**** START CONTAINERS ****"
-	@cp --update=none docker/.env.docker docker/.env.docker.local
+	@cp --update=none infra/dev/.env.docker infra/dev/.env.docker.local
 	CURRENT_UID=$(shell id -u) CURRENT_GID=$(shell id -g) $(DOCKER_COMPOSE) up -d
 	@echo ""
 	@echo "URLs disponibles:"
@@ -47,7 +47,7 @@ restart: env-init
 	$(DOCKER_COMPOSE) down
 	CURRENT_UID=$(shell id -u) CURRENT_GID=$(shell id -g) $(DOCKER_COMPOSE) up -d
 
-install: copy-git-hook composer-install cache-clear node-use build-nuxtJS
+install: copy-git-hook composer-install cache-clear node-use build-nuxtJS migration-migrate
 
 # Supprime tout est réinstalle tout (Attention ça supprime la bdd aussi)
 reset: delete_built_dir remove_orphans build-without-cache start wait install
@@ -89,6 +89,9 @@ db-restart:
 	$(DOCKER_COMPOSE) down
 	$(DOCKER_COMPOSE) up -d
 
+migration-migrate:
+	$(SYMFONY_CONSOLE) doctrine:migrations:migrate --no-interaction
+
 cache-clear:
 	$(SYMFONY_CONSOLE) cache:clear
 
@@ -105,6 +108,13 @@ copy-git-hook:
 shell:
 	$(EXEC_PHP_INTERACTIVE) bash
 
+shell-root:
+	$(EXEC_PHP_INTERACTIVE_ROOT) bash
+
+# Suivi temps réel des logs dev
+logs-dev:
+	$(EXEC_PHP_INTERACTIVE) sh -lc "tail -f var/log/dev.log"
+
 # Force la version node
 node-use:
 	bash -lc 'source "$$HOME/.nvm/nvm.sh" && nvm install && nvm use'

migrations/Version20260403084805.php

@@ -0,0 +1,56 @@
+<?php
+
+declare(strict_types=1);
+
+namespace DoctrineMigrations;
+
+use Doctrine\DBAL\Schema\Schema;
+use Doctrine\Migrations\AbstractMigration;
+
+final class Version20260403084805 extends AbstractMigration
+{
+    public function getDescription(): string
+    {
+        return 'Add machineContextOnly to custom_fields + link FKs on custom_field_values';
+    }
+
+    public function up(Schema $schema): void
+    {
+        $this->addSql('ALTER TABLE custom_fields ADD COLUMN IF NOT EXISTS machinecontextonly BOOLEAN DEFAULT false NOT NULL');
+
+        $this->addSql('ALTER TABLE custom_field_values ADD COLUMN IF NOT EXISTS machinecomponentlinkid VARCHAR(36) DEFAULT NULL');
+        $this->addSql('ALTER TABLE custom_field_values ADD COLUMN IF NOT EXISTS machinepiecelinkid VARCHAR(36) DEFAULT NULL');
+
+        $this->addSql(<<<'SQL'
+            DO $$ BEGIN
+                IF NOT EXISTS (SELECT 1 FROM pg_constraint WHERE conname = 'fk_cfv_machine_component_link') THEN
+                    ALTER TABLE custom_field_values ADD CONSTRAINT fk_cfv_machine_component_link
+                        FOREIGN KEY (machinecomponentlinkid) REFERENCES machine_component_links(id) ON DELETE CASCADE;
+                END IF;
+            END $$;
+            SQL);
+
+        $this->addSql(<<<'SQL'
+            DO $$ BEGIN
+                IF NOT EXISTS (SELECT 1 FROM pg_constraint WHERE conname = 'fk_cfv_machine_piece_link') THEN
+                    ALTER TABLE custom_field_values ADD CONSTRAINT fk_cfv_machine_piece_link
+                        FOREIGN KEY (machinepiecelinkid) REFERENCES machine_piece_links(id) ON DELETE CASCADE;
+                END IF;
+            END $$;
+            SQL);
+
+        $this->addSql('CREATE INDEX IF NOT EXISTS idx_cfv_machine_component_link ON custom_field_values(machinecomponentlinkid)');
+        $this->addSql('CREATE INDEX IF NOT EXISTS idx_cfv_machine_piece_link ON custom_field_values(machinepiecelinkid)');
+    }
+
+    public function down(Schema $schema): void
+    {
+        $this->addSql('ALTER TABLE custom_field_values DROP CONSTRAINT IF EXISTS fk_cfv_machine_component_link');
+        $this->addSql('ALTER TABLE custom_field_values DROP CONSTRAINT IF EXISTS fk_cfv_machine_piece_link');
+        $this->addSql('DROP INDEX IF EXISTS idx_cfv_machine_component_link');
+        $this->addSql('DROP INDEX IF EXISTS idx_cfv_machine_piece_link');
+        $this->addSql('ALTER TABLE custom_field_values DROP COLUMN IF EXISTS machinecomponentlinkid');
+        $this->addSql('ALTER TABLE custom_field_values DROP COLUMN IF EXISTS machinepiecelinkid');
+        $this->addSql('ALTER TABLE custom_fields DROP COLUMN IF EXISTS machinecontextonly');
+    }
+}

migrations/Version20260403_CategoryOnlyLinks.php

@@ -0,0 +1,94 @@
+<?php
+
+declare(strict_types=1);
+
+namespace DoctrineMigrations;
+
+use Doctrine\DBAL\Schema\Schema;
+use Doctrine\Migrations\AbstractMigration;
+
+final class Version20260403_CategoryOnlyLinks extends AbstractMigration
+{
+    public function getDescription(): string
+    {
+        return 'Allow category-only machine links: make entity FKs nullable, add modelType FK to link tables';
+    }
+
+    public function up(Schema $schema): void
+    {
+        // 1. Make entity FK columns nullable
+        $this->addSql('ALTER TABLE machine_component_links ALTER COLUMN composantid DROP NOT NULL');
+        $this->addSql('ALTER TABLE machine_piece_links ALTER COLUMN pieceid DROP NOT NULL');
+        $this->addSql('ALTER TABLE machine_product_links ALTER COLUMN productid DROP NOT NULL');
+
+        // 2. Add modeltypeid column to all 3 tables
+        $this->addSql('ALTER TABLE machine_component_links ADD COLUMN IF NOT EXISTS modeltypeid VARCHAR(36) DEFAULT NULL');
+        $this->addSql('ALTER TABLE machine_piece_links ADD COLUMN IF NOT EXISTS modeltypeid VARCHAR(36) DEFAULT NULL');
+        $this->addSql('ALTER TABLE machine_product_links ADD COLUMN IF NOT EXISTS modeltypeid VARCHAR(36) DEFAULT NULL');
+
+        // 3. Add FK constraints from modeltypeid to model_types(id) ON DELETE SET NULL
+        $this->addSql(<<<'SQL'
+            DO $$ BEGIN
+              IF NOT EXISTS (
+                SELECT 1 FROM information_schema.table_constraints
+                WHERE constraint_name = 'fk_machine_component_links_modeltype' AND table_name = 'machine_component_links'
+              ) THEN
+                ALTER TABLE machine_component_links ADD CONSTRAINT fk_machine_component_links_modeltype
+                  FOREIGN KEY (modeltypeid) REFERENCES model_types(id) ON DELETE SET NULL;
+              END IF;
+            END $$;
+            SQL);
+
+        $this->addSql(<<<'SQL'
+            DO $$ BEGIN
+              IF NOT EXISTS (
+                SELECT 1 FROM information_schema.table_constraints
+                WHERE constraint_name = 'fk_machine_piece_links_modeltype' AND table_name = 'machine_piece_links'
+              ) THEN
+                ALTER TABLE machine_piece_links ADD CONSTRAINT fk_machine_piece_links_modeltype
+                  FOREIGN KEY (modeltypeid) REFERENCES model_types(id) ON DELETE SET NULL;
+              END IF;
+            END $$;
+            SQL);
+
+        $this->addSql(<<<'SQL'
+            DO $$ BEGIN
+              IF NOT EXISTS (
+                SELECT 1 FROM information_schema.table_constraints
+                WHERE constraint_name = 'fk_machine_product_links_modeltype' AND table_name = 'machine_product_links'
+              ) THEN
+                ALTER TABLE machine_product_links ADD CONSTRAINT fk_machine_product_links_modeltype
+                  FOREIGN KEY (modeltypeid) REFERENCES model_types(id) ON DELETE SET NULL;
+              END IF;
+            END $$;
+            SQL);
+
+        // 4. Add indexes on modeltypeid
+        $this->addSql('CREATE INDEX IF NOT EXISTS idx_machine_component_links_modeltypeid ON machine_component_links (modeltypeid)');
+        $this->addSql('CREATE INDEX IF NOT EXISTS idx_machine_piece_links_modeltypeid ON machine_piece_links (modeltypeid)');
+        $this->addSql('CREATE INDEX IF NOT EXISTS idx_machine_product_links_modeltypeid ON machine_product_links (modeltypeid)');
+    }
+
+    public function down(Schema $schema): void
+    {
+        // Drop indexes
+        $this->addSql('DROP INDEX IF EXISTS idx_machine_component_links_modeltypeid');
+        $this->addSql('DROP INDEX IF EXISTS idx_machine_piece_links_modeltypeid');
+        $this->addSql('DROP INDEX IF EXISTS idx_machine_product_links_modeltypeid');
+
+        // Drop FK constraints
+        $this->addSql('ALTER TABLE machine_component_links DROP CONSTRAINT IF EXISTS fk_machine_component_links_modeltype');
+        $this->addSql('ALTER TABLE machine_piece_links DROP CONSTRAINT IF EXISTS fk_machine_piece_links_modeltype');
+        $this->addSql('ALTER TABLE machine_product_links DROP CONSTRAINT IF EXISTS fk_machine_product_links_modeltype');
+
+        // Drop modeltypeid columns
+        $this->addSql('ALTER TABLE machine_component_links DROP COLUMN IF EXISTS modeltypeid');
+        $this->addSql('ALTER TABLE machine_piece_links DROP COLUMN IF EXISTS modeltypeid');
+        $this->addSql('ALTER TABLE machine_product_links DROP COLUMN IF EXISTS modeltypeid');
+
+        // Restore NOT NULL on entity FK columns
+        $this->addSql('ALTER TABLE machine_component_links ALTER COLUMN composantid SET NOT NULL');
+        $this->addSql('ALTER TABLE machine_piece_links ALTER COLUMN pieceid SET NOT NULL');
+        $this->addSql('ALTER TABLE machine_product_links ALTER COLUMN productid SET NOT NULL');
+    }
+}

scripts/release.sh

@@ -11,11 +11,11 @@ NC='\033[0m' # No Color
 # Répertoire racine du projet
 SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
 PROJECT_ROOT="$(dirname "$SCRIPT_DIR")"
-VERSION_FILE="$PROJECT_ROOT/VERSION"
+VERSION_FILE="$PROJECT_ROOT/config/version.yaml"
 API_PLATFORM_FILE="$PROJECT_ROOT/config/packages/api_platform.yaml"
 
 # Lire la version actuelle
-current_version=$(cat "$VERSION_FILE" | tr -d '\n')
+current_version=$(awk -F': *' '/app\.version:/{print $2}' "$VERSION_FILE" | tr -d "' \n\r")
 
 # Fonction pour afficher l'aide
 show_help() {
@@ -113,8 +113,8 @@ cd "$PROJECT_ROOT"
 # ===========================================
 # ÉTAPE 1 : Mettre à jour VERSION
 # ===========================================
-echo -e "${BLUE}[1/4]${NC} Mise à jour du fichier VERSION..."
-echo "$new_version" > "$VERSION_FILE"
+echo -e "${BLUE}[1/4]${NC} Mise à jour de config/version.yaml..."
+printf "parameters:\\n    app.version: '%s'\\n" "$new_version" > "$VERSION_FILE"
 
 # ===========================================
 # ÉTAPE 2 : Mettre à jour api_platform.yaml

src/Controller/CustomFieldValueController.php

@@ -9,6 +9,8 @@ use App\Entity\CustomFieldValue;
 use App\Repository\ComposantRepository;
 use App\Repository\CustomFieldRepository;
 use App\Repository\CustomFieldValueRepository;
+use App\Repository\MachineComponentLinkRepository;
+use App\Repository\MachinePieceLinkRepository;
 use App\Repository\MachineRepository;
 use App\Repository\PieceRepository;
 use App\Repository\ProductRepository;
@@ -29,6 +31,8 @@ class CustomFieldValueController extends AbstractController
         private readonly ComposantRepository $composantRepository,
         private readonly PieceRepository $pieceRepository,
         private readonly ProductRepository $productRepository,
+        private readonly MachineComponentLinkRepository $machineComponentLinkRepository,
+        private readonly MachinePieceLinkRepository $machinePieceLinkRepository,
     ) {}
 
     #[Route('', name: 'custom_field_values_create', methods: ['POST'])]
@@ -214,7 +218,7 @@ class CustomFieldValueController extends AbstractController
         $entityId   = isset($payload['entityId']) ? trim((string) $payload['entityId']) : '';
 
         if ('' === $entityType || '' === $entityId) {
-            foreach (['machine', 'composant', 'piece', 'product'] as $candidate) {
+            foreach (['machine', 'composant', 'piece', 'product', 'machineComponentLink', 'machinePieceLink'] as $candidate) {
                 $key = $candidate.'Id';
                 if (!isset($payload[$key])) {
                     continue;
@@ -226,16 +230,20 @@ class CustomFieldValueController extends AbstractController
             }
         }
 
+        $entityType = strtolower($entityType);
+
         if ('' === $entityType || '' === $entityId) {
             return $this->json(['success' => false, 'error' => 'Entity target is missing.'], 400);
         }
 
         return match ($entityType) {
-            'machine'   => $this->resolveEntity('machine', $entityId, $this->machineRepository),
-            'composant' => $this->resolveEntity('composant', $entityId, $this->composantRepository),
-            'piece'     => $this->resolveEntity('piece', $entityId, $this->pieceRepository),
-            'product'   => $this->resolveEntity('product', $entityId, $this->productRepository),
-            default     => $this->json(['success' => false, 'error' => 'Unsupported entity type.'], 400),
+            'machine'              => $this->resolveEntity('machine', $entityId, $this->machineRepository),
+            'composant'            => $this->resolveEntity('composant', $entityId, $this->composantRepository),
+            'piece'                => $this->resolveEntity('piece', $entityId, $this->pieceRepository),
+            'product'              => $this->resolveEntity('product', $entityId, $this->productRepository),
+            'machinecomponentlink' => $this->resolveEntity('machineComponentLink', $entityId, $this->machineComponentLinkRepository),
+            'machinepiecelink'     => $this->resolveEntity('machinePieceLink', $entityId, $this->machinePieceLinkRepository),
+            default                => $this->json(['success' => false, 'error' => 'Unsupported entity type.'], 400),
         };
     }
 
@@ -270,6 +278,18 @@ class CustomFieldValueController extends AbstractController
             case 'product':
                 $value->setProduct($entity);
 
+                break;
+
+            case 'machineComponentLink':
+                $value->setMachineComponentLink($entity);
+                $value->setComposant($entity->getComposant());
+
+                break;
+
+            case 'machinePieceLink':
+                $value->setMachinePieceLink($entity);
+                $value->setPiece($entity->getPiece());
+
                 break;
         }
     }

src/Controller/MachineStructureController.php

@@ -162,6 +162,9 @@ class MachineStructureController extends AbstractController
         // Copy product links
         $this->cloneProductLinks($source, $newMachine, $componentLinkMap, $pieceLinkMap);
 
+        // Copy context field values
+        $this->cloneContextFieldValues($componentLinkMap, $pieceLinkMap);
+
         $this->entityManager->flush();
 
         $componentLinks = $this->machineComponentLinkRepository->findBy(['machine' => $newMachine], ['createdAt' => 'ASC']);
@@ -188,6 +191,7 @@ class MachineStructureController extends AbstractController
             $newCf->setDefaultValue($cf->getDefaultValue());
             $newCf->setOptions($cf->getOptions());
             $newCf->setOrderIndex($cf->getOrderIndex());
+            $newCf->setMachineContextOnly($cf->isMachineContextOnly());
             $newCf->setMachine($target);
             $this->entityManager->persist($newCf);
 
@@ -313,6 +317,45 @@ class MachineStructureController extends AbstractController
         }
     }
 
+    /**
+     * @param array<string, MachineComponentLink> $componentLinkMap
+     * @param array<string, MachinePieceLink>     $pieceLinkMap
+     */
+    private function cloneContextFieldValues(
+        array $componentLinkMap,
+        array $pieceLinkMap,
+    ): void {
+        foreach ($componentLinkMap as $oldLinkId => $newLink) {
+            $oldLink = $this->machineComponentLinkRepository->find($oldLinkId);
+            if (!$oldLink) {
+                continue;
+            }
+            foreach ($oldLink->getContextFieldValues() as $cfv) {
+                $newValue = new CustomFieldValue();
+                $newValue->setCustomField($cfv->getCustomField());
+                $newValue->setValue($cfv->getValue());
+                $newValue->setMachineComponentLink($newLink);
+                $newValue->setComposant($newLink->getComposant());
+                $this->entityManager->persist($newValue);
+            }
+        }
+
+        foreach ($pieceLinkMap as $oldLinkId => $newLink) {
+            $oldLink = $this->machinePieceLinkRepository->find($oldLinkId);
+            if (!$oldLink) {
+                continue;
+            }
+            foreach ($oldLink->getContextFieldValues() as $cfv) {
+                $newValue = new CustomFieldValue();
+                $newValue->setCustomField($cfv->getCustomField());
+                $newValue->setValue($cfv->getValue());
+                $newValue->setMachinePieceLink($newLink);
+                $newValue->setPiece($newLink->getPiece());
+                $this->entityManager->persist($newValue);
+            }
+        }
+    }
+
     private function normalizePayloadList(mixed $value): array
     {
         if (!is_array($value)) {
@@ -606,13 +649,14 @@ class MachineStructureController extends AbstractController
                 continue;
             }
             $items[] = [
-                'id'           => $customField->getId(),
-                'name'         => $customField->getName(),
-                'type'         => $customField->getType(),
-                'required'     => $customField->isRequired(),
-                'options'      => $customField->getOptions(),
-                'defaultValue' => $customField->getDefaultValue(),
-                'orderIndex'   => $customField->getOrderIndex(),
+                'id'                 => $customField->getId(),
+                'name'               => $customField->getName(),
+                'type'               => $customField->getType(),
+                'required'           => $customField->isRequired(),
+                'options'            => $customField->getOptions(),
+                'defaultValue'       => $customField->getDefaultValue(),
+                'orderIndex'         => $customField->getOrderIndex(),
+                'machineContextOnly' => $customField->isMachineContextOnly(),
             ];
         }
 
@@ -623,20 +667,27 @@ class MachineStructureController extends AbstractController
     {
         return array_map(function (MachineComponentLink $link): array {
             $composant  = $link->getComposant();
+            $modelType  = $link->getModelType();
             $parentLink = $link->getParentLink();
+            $type       = $composant?->getTypeComposant();
 
             return [
-                'id'                    => $link->getId(),
-                'linkId'                => $link->getId(),
-                'machineId'             => $link->getMachine()->getId(),
-                'composantId'           => $composant->getId(),
-                'composant'             => $this->normalizeComposant($composant),
-                'parentLinkId'          => $parentLink?->getId(),
-                'parentComponentLinkId' => $parentLink?->getId(),
-                'parentComponentId'     => $parentLink?->getComposant()->getId(),
-                'overrides'             => $this->normalizeOverrides($link),
-                'childLinks'            => [],
-                'pieceLinks'            => [],
+                'id'                       => $link->getId(),
+                'linkId'                   => $link->getId(),
+                'machineId'                => $link->getMachine()->getId(),
+                'composantId'              => $composant?->getId(),
+                'composant'                => $composant ? $this->normalizeComposant($composant) : null,
+                'modelTypeId'              => $modelType?->getId(),
+                'modelType'                => $modelType ? $this->normalizeModelType($modelType) : null,
+                'pendingEntity'            => null === $composant,
+                'parentLinkId'             => $parentLink?->getId(),
+                'parentComponentLinkId'    => $parentLink?->getId(),
+                'parentComponentId'        => $parentLink?->getComposant()?->getId(),
+                'overrides'                => $this->normalizeOverrides($link),
+                'childLinks'               => [],
+                'pieceLinks'               => [],
+                'contextCustomFields'      => $type ? $this->normalizeContextCustomFieldDefinitions($type->getComponentCustomFields()) : [],
+                'contextCustomFieldValues' => $this->normalizeCustomFieldValues($link->getContextFieldValues()),
             ];
         }, $links);
     }
@@ -645,19 +696,26 @@ class MachineStructureController extends AbstractController
     {
         return array_map(function (MachinePieceLink $link): array {
             $piece      = $link->getPiece();
+            $modelType  = $link->getModelType();
             $parentLink = $link->getParentLink();
+            $type       = $piece?->getTypePiece();
 
             return [
-                'id'                    => $link->getId(),
-                'linkId'                => $link->getId(),
-                'machineId'             => $link->getMachine()->getId(),
-                'pieceId'               => $piece->getId(),
-                'piece'                 => $this->normalizePiece($piece),
-                'parentLinkId'          => $parentLink?->getId(),
-                'parentComponentLinkId' => $parentLink?->getId(),
-                'parentComponentId'     => $parentLink?->getComposant()->getId(),
-                'overrides'             => $this->normalizeOverrides($link),
-                'quantity'              => $this->resolvePieceQuantity($link),
+                'id'                       => $link->getId(),
+                'linkId'                   => $link->getId(),
+                'machineId'                => $link->getMachine()->getId(),
+                'pieceId'                  => $piece?->getId(),
+                'piece'                    => $piece ? $this->normalizePiece($piece) : null,
+                'modelTypeId'              => $modelType?->getId(),
+                'modelType'                => $modelType ? $this->normalizeModelType($modelType) : null,
+                'pendingEntity'            => null === $piece,
+                'parentLinkId'             => $parentLink?->getId(),
+                'parentComponentLinkId'    => $parentLink?->getId(),
+                'parentComponentId'        => $parentLink?->getComposant()?->getId(),
+                'overrides'                => $this->normalizeOverrides($link),
+                'quantity'                 => $piece ? $this->resolvePieceQuantity($link) : 1,
+                'contextCustomFields'      => $type ? $this->normalizeContextCustomFieldDefinitions($type->getPieceCustomFields()) : [],
+                'contextCustomFieldValues' => $this->normalizeCustomFieldValues($link->getContextFieldValues()),
             ];
         }, $links);
     }
@@ -665,13 +723,16 @@ class MachineStructureController extends AbstractController
     private function resolvePieceQuantity(MachinePieceLink $link): int
     {
         $parentLink = $link->getParentLink();
+        $piece      = $link->getPiece();
 
-        if (!$parentLink) {
+        if (!$parentLink || !$piece) {
             return $link->getQuantity();
         }
 
         $composant = $parentLink->getComposant();
-        $piece     = $link->getPiece();
+        if (!$composant) {
+            return $link->getQuantity();
+        }
 
         foreach ($composant->getPieceSlots() as $slot) {
             if ($slot->getSelectedPiece()?->getId() === $piece->getId()) {
@@ -685,14 +746,18 @@ class MachineStructureController extends AbstractController
     private function normalizeProductLinks(array $links): array
     {
         return array_map(function (MachineProductLink $link): array {
-            $product = $link->getProduct();
+            $product   = $link->getProduct();
+            $modelType = $link->getModelType();
 
             return [
                 'id'                    => $link->getId(),
                 'linkId'                => $link->getId(),
                 'machineId'             => $link->getMachine()->getId(),
-                'productId'             => $product->getId(),
-                'product'               => $this->normalizeProduct($product),
+                'productId'             => $product?->getId(),
+                'product'               => $product ? $this->normalizeProduct($product) : null,
+                'modelTypeId'           => $modelType?->getId(),
+                'modelType'             => $modelType ? $this->normalizeModelType($modelType) : null,
+                'pendingEntity'         => null === $product,
                 'parentLinkId'          => $link->getParentLink()?->getId(),
                 'parentComponentLinkId' => $link->getParentComponentLink()?->getId(),
                 'parentPieceLinkId'     => $link->getParentPieceLink()?->getId(),
@@ -728,6 +793,7 @@ class MachineStructureController extends AbstractController
             $pieceData = [
                 'slotId'          => $slot->getId(),
                 'typePieceId'     => $slot->getTypePiece()?->getId(),
+                'typePiece'       => $this->normalizeModelType($slot->getTypePiece()),
                 'quantity'        => $slot->getQuantity(),
                 'selectedPieceId' => $slot->getSelectedPiece()?->getId(),
             ];
@@ -843,13 +909,14 @@ class MachineStructureController extends AbstractController
                 continue;
             }
             $items[] = [
-                'id'           => $cf->getId(),
-                'name'         => $cf->getName(),
-                'type'         => $cf->getType(),
-                'required'     => $cf->isRequired(),
-                'options'      => $cf->getOptions(),
-                'defaultValue' => $cf->getDefaultValue(),
-                'orderIndex'   => $cf->getOrderIndex(),
+                'id'                 => $cf->getId(),
+                'name'               => $cf->getName(),
+                'type'               => $cf->getType(),
+                'required'           => $cf->isRequired(),
+                'options'            => $cf->getOptions(),
+                'defaultValue'       => $cf->getDefaultValue(),
+                'orderIndex'         => $cf->getOrderIndex(),
+                'machineContextOnly' => $cf->isMachineContextOnly(),
             ];
         }
 
@@ -870,13 +937,14 @@ class MachineStructureController extends AbstractController
                 'id'          => $cfv->getId(),
                 'value'       => $cfv->getValue(),
                 'customField' => [
-                    'id'           => $cf->getId(),
-                    'name'         => $cf->getName(),
-                    'type'         => $cf->getType(),
-                    'required'     => $cf->isRequired(),
-                    'options'      => $cf->getOptions(),
-                    'defaultValue' => $cf->getDefaultValue(),
-                    'orderIndex'   => $cf->getOrderIndex(),
+                    'id'                 => $cf->getId(),
+                    'name'               => $cf->getName(),
+                    'type'               => $cf->getType(),
+                    'required'           => $cf->isRequired(),
+                    'options'            => $cf->getOptions(),
+                    'defaultValue'       => $cf->getDefaultValue(),
+                    'orderIndex'         => $cf->getOrderIndex(),
+                    'machineContextOnly' => $cf->isMachineContextOnly(),
                 ],
             ];
         }
@@ -884,6 +952,30 @@ class MachineStructureController extends AbstractController
         return $items;
     }
 
+    private function normalizeContextCustomFieldDefinitions(Collection $customFields): array
+    {
+        $items = [];
+        foreach ($customFields as $cf) {
+            if (!$cf instanceof CustomField || !$cf->isMachineContextOnly()) {
+                continue;
+            }
+            $items[] = [
+                'id'                 => $cf->getId(),
+                'name'               => $cf->getName(),
+                'type'               => $cf->getType(),
+                'required'           => $cf->isRequired(),
+                'options'            => $cf->getOptions(),
+                'defaultValue'       => $cf->getDefaultValue(),
+                'orderIndex'         => $cf->getOrderIndex(),
+                'machineContextOnly' => true,
+            ];
+        }
+
+        usort($items, static fn (array $a, array $b) => $a['orderIndex'] <=> $b['orderIndex']);
+
+        return $items;
+    }
+
     private function normalizeOverrides(object $link): ?array
     {
         $name      = method_exists($link, 'getNameOverride') ? $link->getNameOverride() : null;

src/Controller/MaintenanceController.php

@@ -0,0 +1,58 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Controller;
+
+use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
+use Symfony\Component\HttpFoundation\JsonResponse;
+use Symfony\Component\HttpKernel\KernelInterface;
+use Symfony\Component\Routing\Attribute\Route;
+
+final class MaintenanceController extends AbstractController
+{
+    public function __construct(
+        private readonly KernelInterface $kernel,
+    ) {}
+
+    #[Route('/api/maintenance/check', name: 'maintenance_check', methods: ['GET'])]
+    public function check(): JsonResponse
+    {
+        return new JsonResponse([
+            'enabled' => file_exists($this->flagPath()),
+        ]);
+    }
+
+    #[Route('/api/admin/maintenance', name: 'admin_maintenance_status', methods: ['GET'])]
+    public function status(): JsonResponse
+    {
+        $this->denyAccessUnlessGranted('ROLE_ADMIN');
+
+        return new JsonResponse([
+            'enabled' => file_exists($this->flagPath()),
+        ]);
+    }
+
+    #[Route('/api/admin/maintenance', name: 'admin_maintenance_toggle', methods: ['PUT'])]
+    public function toggle(): JsonResponse
+    {
+        $this->denyAccessUnlessGranted('ROLE_ADMIN');
+
+        $path = $this->flagPath();
+
+        if (file_exists($path)) {
+            unlink($path);
+            $enabled = false;
+        } else {
+            file_put_contents($path, (string) time());
+            $enabled = true;
+        }
+
+        return new JsonResponse(['enabled' => $enabled]);
+    }
+
+    private function flagPath(): string
+    {
+        return $this->kernel->getProjectDir().'/var/maintenance';
+    }
+}

src/Entity/CustomField.php

@@ -55,6 +55,10 @@ class CustomField
     #[Groups(['composant:read', 'piece:read', 'product:read', 'machine:read'])]
     private bool $required = false;
 
+    #[ORM\Column(type: Types::BOOLEAN, options: ['default' => false], name: 'machinecontextonly')]
+    #[Groups(['composant:read', 'piece:read', 'product:read', 'machine:read'])]
+    private bool $machineContextOnly = false;
+
     #[ORM\Column(type: Types::STRING, length: 255, nullable: true, name: 'defaultValue')]
     private ?string $defaultValue = null;
 
@@ -220,4 +224,16 @@ class CustomField
 
         return $this;
     }
+
+    public function isMachineContextOnly(): bool
+    {
+        return $this->machineContextOnly;
+    }
+
+    public function setMachineContextOnly(bool $machineContextOnly): static
+    {
+        $this->machineContextOnly = $machineContextOnly;
+
+        return $this;
+    }
 }

src/Entity/CustomFieldValue.php

@@ -66,6 +66,14 @@ class CustomFieldValue
     #[ORM\JoinColumn(name: 'productId', referencedColumnName: 'id', nullable: true, onDelete: 'CASCADE')]
     private ?Product $product = null;
 
+    #[ORM\ManyToOne(targetEntity: MachineComponentLink::class, inversedBy: 'contextFieldValues')]
+    #[ORM\JoinColumn(name: 'machinecomponentlinkid', referencedColumnName: 'id', nullable: true, onDelete: 'CASCADE')]
+    private ?MachineComponentLink $machineComponentLink = null;
+
+    #[ORM\ManyToOne(targetEntity: MachinePieceLink::class, inversedBy: 'contextFieldValues')]
+    #[ORM\JoinColumn(name: 'machinepiecelinkid', referencedColumnName: 'id', nullable: true, onDelete: 'CASCADE')]
+    private ?MachinePieceLink $machinePieceLink = null;
+
     #[ORM\Column(type: Types::DATETIME_IMMUTABLE, name: 'createdAt')]
     #[Groups(['composant:read', 'piece:read', 'product:read', 'machine:read'])]
     private DateTimeImmutable $createdAt;
@@ -151,4 +159,28 @@ class CustomFieldValue
 
         return $this;
     }
+
+    public function getMachineComponentLink(): ?MachineComponentLink
+    {
+        return $this->machineComponentLink;
+    }
+
+    public function setMachineComponentLink(?MachineComponentLink $machineComponentLink): static
+    {
+        $this->machineComponentLink = $machineComponentLink;
+
+        return $this;
+    }
+
+    public function getMachinePieceLink(): ?MachinePieceLink
+    {
+        return $this->machinePieceLink;
+    }
+
+    public function setMachinePieceLink(?MachinePieceLink $machinePieceLink): static
+    {
+        $this->machinePieceLink = $machinePieceLink;
+
+        return $this;
+    }
 }

src/Entity/Machine.php

@@ -25,7 +25,7 @@ use Symfony\Component\Validator\Constraints as Assert;
 #[ORM\Entity(repositoryClass: MachineRepository::class)]
 #[ORM\Table(name: 'machines')]
 #[ORM\HasLifecycleCallbacks]
-#[UniqueEntity(fields: ['reference'], message: 'Une machine avec cette référence existe déjà.')]
+#[UniqueEntity(fields: ['reference'], message: 'Une machine avec cette référence existe déjà.', ignoreNull: true)]
 #[ApiResource(
     description: 'Machines industrielles rattachées à un site. Chaque machine possède une structure hiérarchique de composants, pièces et produits, ainsi que des champs personnalisés et des documents.',
     operations: [
@@ -150,7 +150,7 @@ class Machine
 
     public function setReference(?string $reference): static
     {
-        $this->reference = $reference;
+        $this->reference = (null !== $reference && '' !== trim($reference)) ? $reference : null;
 
         return $this;
     }

src/Entity/MachineComponentLink.php

@@ -46,8 +46,12 @@ class MachineComponentLink
     private Machine $machine;
 
     #[ORM\ManyToOne(targetEntity: Composant::class, inversedBy: 'machineLinks')]
-    #[ORM\JoinColumn(name: 'composantId', referencedColumnName: 'id', nullable: false, onDelete: 'CASCADE')]
-    private Composant $composant;
+    #[ORM\JoinColumn(name: 'composantId', referencedColumnName: 'id', nullable: true, onDelete: 'CASCADE')]
+    private ?Composant $composant = null;
+
+    #[ORM\ManyToOne(targetEntity: ModelType::class)]
+    #[ORM\JoinColumn(name: 'modelTypeId', referencedColumnName: 'id', nullable: true, onDelete: 'SET NULL')]
+    private ?ModelType $modelType = null;
 
     #[ORM\ManyToOne(targetEntity: MachineComponentLink::class, inversedBy: 'childLinks')]
     #[ORM\JoinColumn(name: 'parentLinkId', referencedColumnName: 'id', nullable: true, onDelete: 'CASCADE')]
@@ -71,6 +75,12 @@ class MachineComponentLink
     #[ORM\OneToMany(mappedBy: 'parentComponentLink', targetEntity: MachineProductLink::class)]
     private Collection $productLinks;
 
+    /**
+     * @var Collection<int, CustomFieldValue>
+     */
+    #[ORM\OneToMany(mappedBy: 'machineComponentLink', targetEntity: CustomFieldValue::class, cascade: ['persist', 'remove'], orphanRemoval: true)]
+    private Collection $contextFieldValues;
+
     #[ORM\Column(type: Types::STRING, length: 255, nullable: true, name: 'nameOverride')]
     private ?string $nameOverride = null;
 
@@ -88,11 +98,12 @@ class MachineComponentLink
 
     public function __construct()
     {
-        $this->createdAt    = new DateTimeImmutable();
-        $this->updatedAt    = new DateTimeImmutable();
-        $this->childLinks   = new ArrayCollection();
-        $this->pieceLinks   = new ArrayCollection();
-        $this->productLinks = new ArrayCollection();
+        $this->createdAt          = new DateTimeImmutable();
+        $this->updatedAt          = new DateTimeImmutable();
+        $this->childLinks         = new ArrayCollection();
+        $this->pieceLinks         = new ArrayCollection();
+        $this->productLinks       = new ArrayCollection();
+        $this->contextFieldValues = new ArrayCollection();
     }
 
     public function getMachine(): Machine
@@ -107,18 +118,30 @@ class MachineComponentLink
         return $this;
     }
 
-    public function getComposant(): Composant
+    public function getComposant(): ?Composant
     {
         return $this->composant;
     }
 
-    public function setComposant(Composant $composant): static
+    public function setComposant(?Composant $composant): static
     {
         $this->composant = $composant;
 
         return $this;
     }
 
+    public function getModelType(): ?ModelType
+    {
+        return $this->modelType;
+    }
+
+    public function setModelType(?ModelType $modelType): static
+    {
+        $this->modelType = $modelType;
+
+        return $this;
+    }
+
     public function getParentLink(): ?MachineComponentLink
     {
         return $this->parentLink;
@@ -166,4 +189,12 @@ class MachineComponentLink
 
         return $this;
     }
+
+    /**
+     * @return Collection<int, CustomFieldValue>
+     */
+    public function getContextFieldValues(): Collection
+    {
+        return $this->contextFieldValues;
+    }
 }

src/Entity/MachinePieceLink.php

@@ -47,8 +47,12 @@ class MachinePieceLink
     private Machine $machine;
 
     #[ORM\ManyToOne(targetEntity: Piece::class, inversedBy: 'machineLinks')]
-    #[ORM\JoinColumn(name: 'pieceId', referencedColumnName: 'id', nullable: false, onDelete: 'CASCADE')]
-    private Piece $piece;
+    #[ORM\JoinColumn(name: 'pieceId', referencedColumnName: 'id', nullable: true, onDelete: 'CASCADE')]
+    private ?Piece $piece = null;
+
+    #[ORM\ManyToOne(targetEntity: ModelType::class)]
+    #[ORM\JoinColumn(name: 'modelTypeId', referencedColumnName: 'id', nullable: true, onDelete: 'SET NULL')]
+    private ?ModelType $modelType = null;
 
     #[ORM\ManyToOne(targetEntity: MachineComponentLink::class, inversedBy: 'pieceLinks')]
     #[ORM\JoinColumn(name: 'parentLinkId', referencedColumnName: 'id', nullable: true, onDelete: 'CASCADE')]
@@ -60,6 +64,12 @@ class MachinePieceLink
     #[ORM\OneToMany(mappedBy: 'parentPieceLink', targetEntity: MachineProductLink::class)]
     private Collection $productLinks;
 
+    /**
+     * @var Collection<int, CustomFieldValue>
+     */
+    #[ORM\OneToMany(mappedBy: 'machinePieceLink', targetEntity: CustomFieldValue::class, cascade: ['persist', 'remove'], orphanRemoval: true)]
+    private Collection $contextFieldValues;
+
     #[ORM\Column(type: Types::STRING, length: 255, nullable: true, name: 'nameOverride')]
     private ?string $nameOverride = null;
 
@@ -81,9 +91,10 @@ class MachinePieceLink
 
     public function __construct()
     {
-        $this->createdAt    = new DateTimeImmutable();
-        $this->updatedAt    = new DateTimeImmutable();
-        $this->productLinks = new ArrayCollection();
+        $this->createdAt          = new DateTimeImmutable();
+        $this->updatedAt          = new DateTimeImmutable();
+        $this->productLinks       = new ArrayCollection();
+        $this->contextFieldValues = new ArrayCollection();
     }
 
     public function getMachine(): Machine
@@ -98,18 +109,30 @@ class MachinePieceLink
         return $this;
     }
 
-    public function getPiece(): Piece
+    public function getPiece(): ?Piece
     {
         return $this->piece;
     }
 
-    public function setPiece(Piece $piece): static
+    public function setPiece(?Piece $piece): static
     {
         $this->piece = $piece;
 
         return $this;
     }
 
+    public function getModelType(): ?ModelType
+    {
+        return $this->modelType;
+    }
+
+    public function setModelType(?ModelType $modelType): static
+    {
+        $this->modelType = $modelType;
+
+        return $this;
+    }
+
     public function getParentLink(): ?MachineComponentLink
     {
         return $this->parentLink;
@@ -169,4 +192,12 @@ class MachinePieceLink
 
         return $this;
     }
+
+    /**
+     * @return Collection<int, CustomFieldValue>
+     */
+    public function getContextFieldValues(): Collection
+    {
+        return $this->contextFieldValues;
+    }
 }

src/Entity/MachineProductLink.php

@@ -46,8 +46,12 @@ class MachineProductLink
     private Machine $machine;
 
     #[ORM\ManyToOne(targetEntity: Product::class, inversedBy: 'machineLinks')]
-    #[ORM\JoinColumn(name: 'productId', referencedColumnName: 'id', nullable: false, onDelete: 'CASCADE')]
-    private Product $product;
+    #[ORM\JoinColumn(name: 'productId', referencedColumnName: 'id', nullable: true, onDelete: 'CASCADE')]
+    private ?Product $product = null;
+
+    #[ORM\ManyToOne(targetEntity: ModelType::class)]
+    #[ORM\JoinColumn(name: 'modelTypeId', referencedColumnName: 'id', nullable: true, onDelete: 'SET NULL')]
+    private ?ModelType $modelType = null;
 
     #[ORM\ManyToOne(targetEntity: MachineProductLink::class, inversedBy: 'childLinks')]
     #[ORM\JoinColumn(name: 'parentLinkId', referencedColumnName: 'id', nullable: true, onDelete: 'CASCADE')]
@@ -92,18 +96,30 @@ class MachineProductLink
         return $this;
     }
 
-    public function getProduct(): Product
+    public function getProduct(): ?Product
     {
         return $this->product;
     }
 
-    public function setProduct(Product $product): static
+    public function setProduct(?Product $product): static
     {
         $this->product = $product;
 
         return $this;
     }
 
+    public function getModelType(): ?ModelType
+    {
+        return $this->modelType;
+    }
+
+    public function setModelType(?ModelType $modelType): static
+    {
+        $this->modelType = $modelType;
+
+        return $this;
+    }
+
     public function getParentLink(): ?MachineProductLink
     {
         return $this->parentLink;

src/Entity/ModelType.php

@@ -421,13 +421,14 @@ class ModelType
         $items = [];
         foreach ($fields as $cf) {
             $items[] = [
-                'id'           => $cf->getId(),
-                'name'         => $cf->getName(),
-                'type'         => $cf->getType(),
-                'required'     => $cf->isRequired(),
-                'options'      => $cf->getOptions(),
-                'defaultValue' => $cf->getDefaultValue(),
-                'orderIndex'   => $cf->getOrderIndex(),
+                'id'                 => $cf->getId(),
+                'name'               => $cf->getName(),
+                'type'               => $cf->getType(),
+                'required'           => $cf->isRequired(),
+                'options'            => $cf->getOptions(),
+                'defaultValue'       => $cf->getDefaultValue(),
+                'orderIndex'         => $cf->getOrderIndex(),
+                'machineContextOnly' => $cf->isMachineContextOnly(),
             ];
         }
 

src/EventListener/MaintenanceModeListener.php

@@ -0,0 +1,60 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\EventListener;
+
+use Symfony\Component\EventDispatcher\Attribute\AsEventListener;
+use Symfony\Component\HttpFoundation\JsonResponse;
+use Symfony\Component\HttpKernel\Event\RequestEvent;
+use Symfony\Component\HttpKernel\KernelInterface;
+use Symfony\Component\Security\Core\Authentication\Token\Storage\TokenStorageInterface;
+
+#[AsEventListener(event: 'kernel.request', priority: 10)]
+final class MaintenanceModeListener
+{
+    public function __construct(
+        private readonly KernelInterface $kernel,
+        private readonly TokenStorageInterface $tokenStorage,
+    ) {}
+
+    public function __invoke(RequestEvent $event): void
+    {
+        if (!$event->isMainRequest()) {
+            return;
+        }
+
+        $flagFile = $this->kernel->getProjectDir().'/var/maintenance';
+
+        if (!file_exists($flagFile)) {
+            return;
+        }
+
+        $request = $event->getRequest();
+        $path    = $request->getPathInfo();
+
+        // Always allow maintenance status endpoint and session endpoints
+        if (str_starts_with($path, '/api/admin/maintenance')
+            || str_starts_with($path, '/api/maintenance/check')
+            || str_starts_with($path, '/api/session')
+            || str_starts_with($path, '/api/health')
+            || str_starts_with($path, '/api/docs')
+        ) {
+            return;
+        }
+
+        // Allow admin users through
+        $token = $this->tokenStorage->getToken();
+        if ($token && $token->getUser()) {
+            $roles = $token->getRoleNames();
+            if (in_array('ROLE_ADMIN', $roles, true)) {
+                return;
+            }
+        }
+
+        $event->setResponse(new JsonResponse(
+            ['message' => 'Application en maintenance. Veuillez réessayer ultérieurement.'],
+            JsonResponse::HTTP_SERVICE_UNAVAILABLE,
+        ));
+    }
+}

src/EventSubscriber/MachineAuditSubscriber.php

@@ -74,18 +74,20 @@ final class MachineAuditSubscriber extends AbstractAuditSubscriber
         foreach ($entity->getComponentLinks() as $link) {
             $componentLinks[] = [
                 'id'            => $link->getId(),
-                'composantId'   => $link->getComposant()->getId(),
-                'composantName' => $link->getComposant()->getName(),
+                'composantId'   => $link->getComposant()?->getId(),
+                'composantName' => $link->getComposant()?->getName(),
+                'modelTypeId'   => $link->getModelType()?->getId(),
             ];
         }
 
         $pieceLinks = [];
         foreach ($entity->getPieceLinks() as $link) {
             $pieceLinks[] = [
-                'id'        => $link->getId(),
-                'pieceId'   => $link->getPiece()->getId(),
-                'pieceName' => $link->getPiece()->getName(),
-                'quantity'  => $link->getQuantity(),
+                'id'          => $link->getId(),
+                'pieceId'     => $link->getPiece()?->getId(),
+                'pieceName'   => $link->getPiece()?->getName(),
+                'quantity'    => $link->getQuantity(),
+                'modelTypeId' => $link->getModelType()?->getId(),
             ];
         }
 
@@ -93,8 +95,9 @@ final class MachineAuditSubscriber extends AbstractAuditSubscriber
         foreach ($entity->getProductLinks() as $link) {
             $productLinks[] = [
                 'id'          => $link->getId(),
-                'productId'   => $link->getProduct()->getId(),
-                'productName' => $link->getProduct()->getName(),
+                'productId'   => $link->getProduct()?->getId(),
+                'productName' => $link->getProduct()?->getName(),
+                'modelTypeId' => $link->getModelType()?->getId(),
             ];
         }
 
@@ -187,8 +190,8 @@ final class MachineAuditSubscriber extends AbstractAuditSubscriber
                 'machine'   => $entity->getMachine(),
                 'diffKey'   => $action.'Component',
                 'diffValue' => [
-                    'id'   => $entity->getComposant()->getId(),
-                    'name' => $entity->getComposant()->getName(),
+                    'id'   => $entity->getComposant()?->getId() ?? $entity->getModelType()?->getId(),
+                    'name' => $entity->getComposant()?->getName() ?? $entity->getModelType()?->getName() ?? 'Catégorie seule',
                 ],
             ];
         }
@@ -198,8 +201,8 @@ final class MachineAuditSubscriber extends AbstractAuditSubscriber
                 'machine'   => $entity->getMachine(),
                 'diffKey'   => $action.'Piece',
                 'diffValue' => [
-                    'id'   => $entity->getPiece()->getId(),
-                    'name' => $entity->getPiece()->getName(),
+                    'id'   => $entity->getPiece()?->getId() ?? $entity->getModelType()?->getId(),
+                    'name' => $entity->getPiece()?->getName() ?? $entity->getModelType()?->getName() ?? 'Catégorie seule',
                 ],
             ];
         }
@@ -209,8 +212,8 @@ final class MachineAuditSubscriber extends AbstractAuditSubscriber
                 'machine'   => $entity->getMachine(),
                 'diffKey'   => $action.'Product',
                 'diffValue' => [
-                    'id'   => $entity->getProduct()->getId(),
-                    'name' => $entity->getProduct()->getName(),
+                    'id'   => $entity->getProduct()?->getId() ?? $entity->getModelType()?->getId(),
+                    'name' => $entity->getProduct()?->getName() ?? $entity->getModelType()?->getName() ?? 'Catégorie seule',
                 ],
             ];
         }

src/Mcp/Tool/Machine/MachineStructureTool.php

@@ -164,11 +164,11 @@ class MachineStructureTool
                 'id'                    => $link->getId(),
                 'linkId'                => $link->getId(),
                 'machineId'             => $link->getMachine()->getId(),
-                'composantId'           => $composant->getId(),
-                'composant'             => $this->normalizeComposant($composant),
+                'composantId'           => $composant?->getId(),
+                'composant'             => $composant ? $this->normalizeComposant($composant) : null,
                 'parentLinkId'          => $parentLink?->getId(),
                 'parentComponentLinkId' => $parentLink?->getId(),
-                'parentComponentId'     => $parentLink?->getComposant()->getId(),
+                'parentComponentId'     => $parentLink?->getComposant()?->getId(),
                 'overrides'             => $this->normalizeOverrides($link),
                 'childLinks'            => [],
                 'pieceLinks'            => [],
@@ -189,13 +189,13 @@ class MachineStructureTool
                 'id'                    => $link->getId(),
                 'linkId'                => $link->getId(),
                 'machineId'             => $link->getMachine()->getId(),
-                'pieceId'               => $piece->getId(),
-                'piece'                 => $this->normalizePiece($piece),
+                'pieceId'               => $piece?->getId(),
+                'piece'                 => $piece ? $this->normalizePiece($piece) : null,
                 'parentLinkId'          => $parentLink?->getId(),
                 'parentComponentLinkId' => $parentLink?->getId(),
-                'parentComponentId'     => $parentLink?->getComposant()->getId(),
+                'parentComponentId'     => $parentLink?->getComposant()?->getId(),
                 'overrides'             => $this->normalizeOverrides($link),
-                'quantity'              => $this->resolvePieceQuantity($link),
+                'quantity'              => $piece ? $this->resolvePieceQuantity($link) : 1,
             ];
         }, $links);
     }

src/Service/EntityVersionService.php

@@ -869,22 +869,25 @@ final class EntityVersionService
             $snapshot['componentLinks'] = [];
             foreach ($entity->getComponentLinks() as $link) {
                 $snapshot['componentLinks'][] = [
-                    'id'            => $link->getId(), 'composantId' => $link->getComposant()->getId(),
-                    'composantName' => $link->getComposant()->getName(),
+                    'id'            => $link->getId(), 'composantId' => $link->getComposant()?->getId(),
+                    'composantName' => $link->getComposant()?->getName(),
+                    'modelTypeId'   => $link->getModelType()?->getId(),
                 ];
             }
             $snapshot['pieceLinks'] = [];
             foreach ($entity->getPieceLinks() as $link) {
                 $snapshot['pieceLinks'][] = [
-                    'id'        => $link->getId(), 'pieceId' => $link->getPiece()->getId(),
-                    'pieceName' => $link->getPiece()->getName(), 'quantity' => $link->getQuantity(),
+                    'id'          => $link->getId(), 'pieceId' => $link->getPiece()?->getId(),
+                    'pieceName'   => $link->getPiece()?->getName(), 'quantity' => $link->getQuantity(),
+                    'modelTypeId' => $link->getModelType()?->getId(),
                 ];
             }
             $snapshot['productLinks'] = [];
             foreach ($entity->getProductLinks() as $link) {
                 $snapshot['productLinks'][] = [
-                    'id'          => $link->getId(), 'productId' => $link->getProduct()->getId(),
-                    'productName' => $link->getProduct()->getName(),
+                    'id'          => $link->getId(), 'productId' => $link->getProduct()?->getId(),
+                    'productName' => $link->getProduct()?->getName(),
+                    'modelTypeId' => $link->getModelType()?->getId(),
                 ];
             }
         }

src/Service/SkeletonStructureService.php

@@ -233,6 +233,7 @@ class SkeletonStructureService
                 $existingField->setOptions($normalized['options']);
                 $existingField->setDefaultValue($normalized['defaultValue']);
                 $existingField->setOrderIndex($normalized['orderIndex']);
+                $existingField->setMachineContextOnly($normalized['machineContextOnly']);
                 $processedIds[$existingField->getId()] = true;
             } else {
                 // Create new field
@@ -243,6 +244,7 @@ class SkeletonStructureService
                 $cf->setOptions($normalized['options']);
                 $cf->setDefaultValue($normalized['defaultValue']);
                 $cf->setOrderIndex($normalized['orderIndex']);
+                $cf->setMachineContextOnly($normalized['machineContextOnly']);
 
                 match ($category) {
                     ModelCategory::COMPONENT => $cf->setTypeComposant($modelType),
@@ -265,7 +267,7 @@ class SkeletonStructureService
     /**
      * Normalize frontend custom field data to a common shape.
      *
-     * @return array{name: string, type: string, required: bool, options: ?array, defaultValue: ?string, orderIndex: int}
+     * @return array{name: string, type: string, required: bool, options: ?array, defaultValue: ?string, orderIndex: int, machineContextOnly: bool}
      */
     private function normalizeCustomFieldData(array $fieldData, int $index): array
     {
@@ -274,23 +276,25 @@ class SkeletonStructureService
             $value = $fieldData['value'];
 
             return [
-                'name'         => $fieldData['key'],
-                'type'         => $value['type'] ?? 'text',
-                'required'     => (bool) ($value['required'] ?? false),
-                'options'      => $value['options'] ?? null,
-                'defaultValue' => $value['defaultValue'] ?? null,
-                'orderIndex'   => $index,
+                'name'               => $fieldData['key'],
+                'type'               => $value['type'] ?? 'text',
+                'required'           => (bool) ($value['required'] ?? false),
+                'options'            => $value['options'] ?? null,
+                'defaultValue'       => $value['defaultValue'] ?? null,
+                'orderIndex'         => $index,
+                'machineContextOnly' => (bool) ($value['machineContextOnly'] ?? false),
             ];
         }
 
         // PIECE/PRODUCT format: {name, type, required, options?, orderIndex?, defaultValue?}
         return [
-            'name'         => $fieldData['name'] ?? '',
-            'type'         => $fieldData['type'] ?? 'text',
-            'required'     => (bool) ($fieldData['required'] ?? false),
-            'options'      => $fieldData['options'] ?? null,
-            'defaultValue' => $fieldData['defaultValue'] ?? null,
-            'orderIndex'   => $fieldData['orderIndex'] ?? $index,
+            'name'               => $fieldData['name'] ?? '',
+            'type'               => $fieldData['type'] ?? 'text',
+            'required'           => (bool) ($fieldData['required'] ?? false),
+            'options'            => $fieldData['options'] ?? null,
+            'defaultValue'       => $fieldData['defaultValue'] ?? null,
+            'orderIndex'         => $fieldData['orderIndex'] ?? $index,
+            'machineContextOnly' => (bool) ($fieldData['machineContextOnly'] ?? false),
         ];
     }
 }

tests/AbstractApiTestCase.php

@@ -404,11 +404,13 @@ abstract class AbstractApiTestCase extends ApiTestCase
         ?ModelType $typePiece = null,
         ?ModelType $typeProduct = null,
         int $orderIndex = 0,
+        bool $machineContextOnly = false,
     ): CustomField {
         $cf = new CustomField();
         $cf->setName($name);
         $cf->setType($type);
         $cf->setOrderIndex($orderIndex);
+        $cf->setMachineContextOnly($machineContextOnly);
         if (null !== $machine) {
             $cf->setMachine($machine);
         }
@@ -436,6 +438,8 @@ abstract class AbstractApiTestCase extends ApiTestCase
         ?Composant $composant = null,
         ?Piece $piece = null,
         ?Product $product = null,
+        ?MachineComponentLink $machineComponentLink = null,
+        ?MachinePieceLink $machinePieceLink = null,
     ): CustomFieldValue {
         $cfv = new CustomFieldValue();
         $cfv->setValue($value);
@@ -452,6 +456,12 @@ abstract class AbstractApiTestCase extends ApiTestCase
         if (null !== $product) {
             $cfv->setProduct($product);
         }
+        if (null !== $machineComponentLink) {
+            $cfv->setMachineComponentLink($machineComponentLink);
+        }
+        if (null !== $machinePieceLink) {
+            $cfv->setMachinePieceLink($machinePieceLink);
+        }
 
         $em = $this->getEntityManager();
         $em->persist($cfv);

tests/Api/Entity/MachineContextCustomFieldTest.php

@@ -0,0 +1,228 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Tests\Api\Entity;
+
+use App\Enum\ModelCategory;
+use App\Tests\AbstractApiTestCase;
+
+class MachineContextCustomFieldTest extends AbstractApiTestCase
+{
+    public function testStructureReturnsContextFieldsOnComponentLink(): void
+    {
+        $client = $this->createGestionnaireClient();
+
+        $site      = $this->createSite('Site A');
+        $modelType = $this->createModelType('Motor', 'MOT', ModelCategory::COMPONENT);
+
+        $contextField = $this->createCustomField(
+            name: 'Voltage',
+            type: 'number',
+            typeComposant: $modelType,
+            machineContextOnly: true,
+        );
+        $normalField = $this->createCustomField(
+            name: 'Serial',
+            type: 'text',
+            typeComposant: $modelType,
+        );
+
+        $machine   = $this->createMachine('Machine A', $site);
+        $composant = $this->createComposant('Motor 1', 'MOT-001', $modelType);
+        $link      = $this->createMachineComponentLink($machine, $composant);
+
+        $this->createCustomFieldValue(
+            customField: $contextField,
+            value: '220',
+            composant: $composant,
+            machineComponentLink: $link,
+        );
+
+        $response = $client->request('GET', '/api/machines/'.$machine->getId().'/structure');
+        $this->assertResponseIsSuccessful();
+
+        $data          = $response->toArray();
+        $componentLink = $data['componentLinks'][0];
+
+        $this->assertArrayHasKey('contextCustomFields', $componentLink);
+        $this->assertCount(1, $componentLink['contextCustomFields']);
+        $this->assertSame('Voltage', $componentLink['contextCustomFields'][0]['name']);
+        $this->assertTrue($componentLink['contextCustomFields'][0]['machineContextOnly']);
+
+        $this->assertArrayHasKey('contextCustomFieldValues', $componentLink);
+        $this->assertCount(1, $componentLink['contextCustomFieldValues']);
+        $this->assertSame('220', $componentLink['contextCustomFieldValues'][0]['value']);
+
+        $normalFields = array_filter(
+            $componentLink['composant']['customFields'],
+            fn (array $f) => $f['name'] === 'Serial',
+        );
+        $this->assertCount(1, $normalFields);
+    }
+
+    public function testStructureReturnsContextFieldsOnPieceLink(): void
+    {
+        $client = $this->createGestionnaireClient();
+
+        $site      = $this->createSite('Site B');
+        $modelType = $this->createModelType('Bearing', 'BRG', ModelCategory::PIECE);
+        $contextField = $this->createCustomField(
+            name: 'Wear Level',
+            type: 'select',
+            typePiece: $modelType,
+            machineContextOnly: true,
+        );
+        $contextField->setOptions(['Good', 'Fair', 'Replace']);
+        $this->getEntityManager()->flush();
+
+        $machine = $this->createMachine('Machine B', $site);
+        $piece   = $this->createPiece('Bearing 1', 'BRG-001', $modelType);
+        $link    = $this->createMachinePieceLink($machine, $piece);
+
+        $this->createCustomFieldValue(
+            customField: $contextField,
+            value: 'Fair',
+            piece: $piece,
+            machinePieceLink: $link,
+        );
+
+        $response = $client->request('GET', '/api/machines/'.$machine->getId().'/structure');
+        $data     = $response->toArray();
+
+        $pieceLink = $data['pieceLinks'][0];
+        $this->assertCount(1, $pieceLink['contextCustomFields']);
+        $this->assertSame('Wear Level', $pieceLink['contextCustomFields'][0]['name']);
+        $this->assertCount(1, $pieceLink['contextCustomFieldValues']);
+        $this->assertSame('Fair', $pieceLink['contextCustomFieldValues'][0]['value']);
+    }
+
+    public function testUpsertContextFieldValueViaComponentLink(): void
+    {
+        $client = $this->createGestionnaireClient();
+
+        $site      = $this->createSite('Site C');
+        $modelType = $this->createModelType('Pump', 'PMP', ModelCategory::COMPONENT);
+        $contextField = $this->createCustomField(
+            name: 'Flow Rate',
+            type: 'number',
+            typeComposant: $modelType,
+            machineContextOnly: true,
+        );
+
+        $machine   = $this->createMachine('Machine C', $site);
+        $composant = $this->createComposant('Pump 1', 'PMP-001', $modelType);
+        $link      = $this->createMachineComponentLink($machine, $composant);
+
+        $response = $client->request('POST', '/api/custom-fields/values/upsert', [
+            'json' => [
+                'customFieldId'          => $contextField->getId(),
+                'machineComponentLinkId' => $link->getId(),
+                'value'                  => '380',
+            ],
+        ]);
+
+        $this->assertResponseIsSuccessful();
+        $data = $response->toArray();
+        $this->assertSame('380', $data['value']);
+    }
+
+    public function testSameComposantDifferentValuesPerMachine(): void
+    {
+        $client = $this->createGestionnaireClient();
+
+        $site      = $this->createSite('Site D');
+        $modelType = $this->createModelType('Valve', 'VLV', ModelCategory::COMPONENT);
+        $contextField = $this->createCustomField(
+            name: 'Pressure',
+            type: 'number',
+            typeComposant: $modelType,
+            machineContextOnly: true,
+        );
+
+        $machineA  = $this->createMachine('Machine A', $site);
+        $machineB  = $this->createMachine('Machine B', $site);
+        $composant = $this->createComposant('Valve 1', 'VLV-001', $modelType);
+
+        $linkA = $this->createMachineComponentLink($machineA, $composant);
+        $linkB = $this->createMachineComponentLink($machineB, $composant);
+
+        $this->createCustomFieldValue(
+            customField: $contextField,
+            value: '100',
+            composant: $composant,
+            machineComponentLink: $linkA,
+        );
+        $this->createCustomFieldValue(
+            customField: $contextField,
+            value: '200',
+            composant: $composant,
+            machineComponentLink: $linkB,
+        );
+
+        $dataA = $client->request('GET', '/api/machines/'.$machineA->getId().'/structure')->toArray();
+        $this->assertSame('100', $dataA['componentLinks'][0]['contextCustomFieldValues'][0]['value']);
+
+        $dataB = $client->request('GET', '/api/machines/'.$machineB->getId().'/structure')->toArray();
+        $this->assertSame('200', $dataB['componentLinks'][0]['contextCustomFieldValues'][0]['value']);
+    }
+
+    public function testMachineContextOnlyFieldSerialization(): void
+    {
+        $client = $this->createGestionnaireClient();
+
+        $site      = $this->createSite('Site E');
+        $modelType = $this->createModelType('Sensor', 'SNS', ModelCategory::COMPONENT);
+        $contextField = $this->createCustomField(
+            name: 'Calibration Date',
+            type: 'date',
+            typeComposant: $modelType,
+            machineContextOnly: true,
+        );
+
+        $response = $client->request('GET', '/api/custom_fields/'.$contextField->getId());
+        $this->assertResponseIsSuccessful();
+        $data = $response->toArray();
+        $this->assertTrue($data['machineContextOnly']);
+    }
+
+    public function testCloneMachineCopiesContextFieldValues(): void
+    {
+        $client = $this->createGestionnaireClient();
+
+        $site      = $this->createSite('Site F');
+        $modelType = $this->createModelType('Motor Clone', 'MOTC', ModelCategory::COMPONENT);
+        $contextField = $this->createCustomField(
+            name: 'RPM Setting',
+            type: 'number',
+            typeComposant: $modelType,
+            machineContextOnly: true,
+        );
+
+        $source    = $this->createMachine('Source Machine', $site);
+        $composant = $this->createComposant('Motor C', 'MOTC-001', $modelType);
+        $link      = $this->createMachineComponentLink($source, $composant);
+
+        $this->createCustomFieldValue(
+            customField: $contextField,
+            value: '3000',
+            composant: $composant,
+            machineComponentLink: $link,
+        );
+
+        $response = $client->request('POST', '/api/machines/'.$source->getId().'/clone', [
+            'json' => [
+                'name'   => 'Cloned Machine',
+                'siteId' => $site->getId(),
+            ],
+        ]);
+
+        $this->assertResponseStatusCodeSame(201);
+        $data = $response->toArray();
+
+        $clonedLink = $data['componentLinks'][0] ?? null;
+        $this->assertNotNull($clonedLink);
+        $this->assertCount(1, $clonedLink['contextCustomFieldValues']);
+        $this->assertSame('3000', $clonedLink['contextCustomFieldValues'][0]['value']);
+    }
+}