feat(modules): add external module registration and defineModule support
- Add `./modules/define` export path pointing to `defineModule.js` - Implement `registerExternalModules()` to handle modules passed via `zen.config.js`, with env var gating (`ZEN_MODULE_<NAME>=true`) - Extract `buildAdminConfig()` helper to consolidate admin navigation/page config building - Refactor `loadModuleConfig()` to use `buildAdminConfig()` and simplify public routes check - Improve `initializeModuleTables()` to gracefully skip modules without `db.js` instead of erroring - Update module discovery JSDoc to reflect external module registration support
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# Créer un module externe
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Un module externe est un package npm indépendant qui s'intègre dans une app qui utilise `@hykocx/zen`. Il n'a pas besoin de modifier le code source du CMS.
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---
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## Convention de nommage
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```
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@scope/zen-nom-du-module
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```
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Exemples : `@hykocx/zen-invoice`, `@hykocx/zen-nuage`.
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---
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## Structure du package
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```
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zen-invoice/
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├── index.js # Point d'entrée — exporte defineModule()
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├── admin/ # Composants React pour l'admin
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│ ├── InvoiceListPage.js
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│ ├── InvoiceCreatePage.js
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│ └── InvoiceEditPage.js
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├── db.js # createTables() et dropTables()
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├── actions.js # Server actions pour pages publiques
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├── metadata.js # Générateurs de métadonnées SEO
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├── package.json
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└── .env.example
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```
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---
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## index.js
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On utilise `defineModule()` importé depuis `@hykocx/zen/modules/define`.
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```js
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import { lazy } from 'react';
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import { defineModule } from '@hykocx/zen/modules/define';
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import { createTables, dropTables } from './db.js';
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import { getInvoiceByToken } from './actions.js';
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import { generatePaymentMetadata } from './metadata.js';
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const InvoiceListPage = lazy(() => import('./admin/InvoiceListPage.js'));
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const InvoiceCreatePage = lazy(() => import('./admin/InvoiceCreatePage.js'));
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const InvoiceEditPage = lazy(() => import('./admin/InvoiceEditPage.js'));
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export default defineModule({
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name: 'invoice',
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displayName: 'Facturation',
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version: '1.0.0',
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description: 'Gestion des factures et paiements.',
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dependencies: [],
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envVars: ['STRIPE_SECRET_KEY', 'ZEN_INVOICE_TAX_RATE'],
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// Navigation dans le panneau admin
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navigation: [
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{
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id: 'invoice',
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title: 'Facturation',
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icon: 'Invoice03Icon',
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items: [
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{ name: 'Factures', href: '/admin/invoice/list', icon: 'Invoice03Icon' },
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{ name: 'Nouvelle', href: '/admin/invoice/new', icon: 'Add01Icon' },
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],
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},
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],
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// Pages admin avec leurs composants lazy
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adminPages: {
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'/admin/invoice/list': InvoiceListPage,
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'/admin/invoice/new': InvoiceCreatePage,
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'/admin/invoice/edit': InvoiceEditPage,
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},
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// Résolveur pour les routes dynamiques (ex: /admin/invoice/edit/123)
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pageResolver(path) {
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const parts = path.split('/').filter(Boolean);
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if (parts[0] !== 'admin' || parts[1] !== 'invoice') return null;
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if (parts[2] === 'list') return InvoiceListPage;
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if (parts[2] === 'new') return InvoiceCreatePage;
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if (parts[2] === 'edit') return InvoiceEditPage;
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return null;
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},
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publicPages: {},
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publicRoutes: [
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{ pattern: ':token', description: 'Page de paiement' },
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{ pattern: ':token/pdf', description: 'Télécharger la facture PDF' },
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],
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dashboardWidgets: [],
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// Base de données
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db: { createTables, dropTables },
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// Server actions pour les pages publiques (/zen/invoice/...)
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actions: { getInvoiceByToken },
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// Générateurs de métadonnées SEO
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metadata: {
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payment: generatePaymentMetadata,
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},
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// Appelé une fois au démarrage du serveur
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// ctx donne accès aux services du CMS
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async setup(ctx) {
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const stripe = await ctx.payments.then(p => p.stripe);
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// Initialiser des webhooks, vérifier la config, etc.
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console.log('[invoice] Stripe prêt :', !!stripe);
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},
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});
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```
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---
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## L'objet ctx dans setup()
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`setup(ctx)` reçoit un objet qui donne accès aux services du CMS. Chaque propriété retourne une promesse vers le module correspondant.
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```js
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async setup(ctx) {
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// Base de données PostgreSQL
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const { query, queryOne, queryAll } = await ctx.db;
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const rows = await query('SELECT * FROM zen_auth_users LIMIT 1');
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// Envoi de courriels (Resend)
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const { sendEmail } = await ctx.email;
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await sendEmail({ to: 'test@example.com', subject: 'Test', html: '<p>ok</p>' });
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// Stockage de fichiers (Cloudflare R2)
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const { uploadFile, deleteFile } = await ctx.storage;
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// Stripe
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const { stripe } = await ctx.payments;
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// Variables d'environnement
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const apiKey = ctx.config.get('STRIPE_SECRET_KEY');
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}
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```
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---
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## package.json du module externe
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```json
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{
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"name": "@hykocx/zen-invoice",
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"version": "1.0.0",
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"type": "module",
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"main": "./index.js",
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"exports": {
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".": "./index.js"
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},
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"peerDependencies": {
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"@hykocx/zen": ">=1.0.0",
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"react": ">=19.0.0"
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}
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}
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```
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---
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## Intégration dans l'app consommatrice
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### 1. Installer le package
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```bash
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npm install @hykocx/zen-invoice
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```
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### 2. Créer zen.config.js à la racine de l'app
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```js
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// zen.config.js
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import invoiceModule from '@hykocx/zen-invoice';
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export default {
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modules: [invoiceModule],
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};
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```
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### 3. Passer la config à initializeZen()
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```js
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// instrumentation.js
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import zenConfig from './zen.config.js';
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export async function register() {
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if (process.env.NEXT_RUNTIME === 'nodejs') {
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const { initializeZen } = await import('@hykocx/zen');
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await initializeZen(zenConfig);
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}
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}
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```
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### 4. Passer les modules à ZenProvider
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```jsx
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// app/layout.js
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import zenConfig from './zen.config.js';
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import { ZenProvider } from '@hykocx/zen/provider';
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export default function RootLayout({ children }) {
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return (
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<html>
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<body>
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<ZenProvider modules={zenConfig.modules}>
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{children}
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</ZenProvider>
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</body>
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</html>
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);
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}
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```
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### 5. Activer le module via variable d'environnement
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```bash
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# .env.local
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ZEN_MODULE_INVOICE=true
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```
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La convention est la même que pour les modules internes : tirets en underscores, tout en majuscules.
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---
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## Initialiser la base de données
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Le module déclare ses tables dans `db.createTables`. Deux façons de les créer.
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**Au démarrage du serveur** (si `skipDb: false`) :
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```js
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await initializeZen({ modules: zenConfig.modules, skipDb: false });
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```
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**Via la CLI** :
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```bash
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npx zen-db init
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```
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---
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## Vérification rapide
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1. Démarrer avec `ZEN_MODULE_INVOICE=true`.
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2. Ouvrir `/admin`. La section "Facturation" doit apparaître dans la navigation.
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3. Naviguer vers `/admin/invoice/list`. La page du module doit se charger.
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4. Appeler `getModuleActions('invoice')` côté serveur. Les actions du module doivent être retournées.
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