fix(docs-generation): utiliser @asyncapi/generator en API programmatique

Remplace execFile('asyncapi') par l'API Node.js directe — aucun appel
réseau vers registry.npmjs.org, template résolu depuis node_modules local.

Generated with [Claude Code](https://claude.ai/code)
via [Happy](https://happy.engineering)

Co-Authored-By: Claude <noreply@anthropic.com>
Co-Authored-By: Happy <yesreply@happy.engineering>

back/src/modules/docs-generation/docs-generation.service.ts

@@ -3,11 +3,13 @@ import { execFile } from 'child_process';
 import { promisify } from 'util';
 import * as fs from 'fs/promises';
 import * as path from 'path';
+// eslint-disable-next-line @typescript-eslint/no-require-imports
+const AsyncApiGenerator = require('@asyncapi/generator');
 import { ApisService } from '../apis/apis.service';
 
 const execFileAsync = promisify(execFile);
 
-/* Ajoute node_modules/.bin au PATH pour trouver asyncapi/redocly en local */
+/* Ajoute node_modules/.bin au PATH pour trouver redocly en local */
 const localBin = path.join(process.cwd(), 'node_modules', '.bin');
 const execEnv = {
   ...process.env,
@@ -50,16 +52,10 @@ export class DocsGenerationService {
   }
 
   private async generateAsyncApi(yamlPath: string, outputDir: string): Promise<void> {
-    /* Chemin local du template — évite l'appel réseau vers registry.npmjs.org */
+    /* API programmatique — aucun appel réseau, template résolu localement */
     const templatePath = path.join(process.cwd(), 'node_modules', '@asyncapi', 'html-template');
-    await execFileAsync('asyncapi', [
-      'generate', 'fromTemplate',
-      yamlPath,
-      templatePath,
-      '--output', outputDir,
-      '--no-interactive',
-      '--force-write',
-    ], { shell: true, env: execEnv });
+    const generator = new AsyncApiGenerator(templatePath, outputDir, { forceWrite: true });
+    await generator.generateFromFile(yamlPath);
   }
 
   private async generateOpenApi(yamlPath: string, outputDir: string): Promise<void> {