fix: compatibilité Windows pour la génération de docs

- execFileAsync avec shell:true pour trouver asyncapi.cmd/redocly.cmd sur Windows
- DOCS_OUTPUT_DIR par défaut ./docs-output (cross-platform) au lieu de /app/docs-output

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>

package.json

@@ -2,6 +2,15 @@
   "name": "datacat",
   "version": "0.1.0",
   "private": true,
+  "pnpm": {
+    "onlyBuiltDependencies": [
+      "@nestjs/core",
+      "@parcel/watcher",
+      "esbuild",
+      "lmdb",
+      "msgpackr-extract"
+    ]
+  },
   "scripts": {
     "dev": "docker compose -f infra/docker-compose.yml up",
     "dev:build": "docker compose -f infra/docker-compose.yml up --build",