fix: motivation dossier famille à l’inscription + servir /uploads + Traefik

- Inscription parent: créer dossier_famille + dossier_famille_enfants (presentation_dossier)
- Nest: useStaticAssets sur le volume uploads (chemins /uploads/photos/…)
- docker-compose: route Traefik PathPrefix /uploads → API (priorité 18)
- Front: ParentDossier.id depuis user_id (aligné API)

Made-with: Cursor

docker-compose.yml

@@ -70,6 +70,12 @@ services:
       - "traefik.http.routers.ptitspas-api.tls.certresolver=leresolver"
       - "traefik.http.routers.ptitspas-api.priority=20"
       - "traefik.http.services.ptitspas-api.loadbalancer.server.port=3000"
+      # Fichiers statiques photos (URL relatives /uploads/...) — priorité > front (10)
+      - "traefik.http.routers.ptitspas-uploads.rule=Host(\"app.ptits-pas.fr\") && PathPrefix(\"/uploads\")"
+      - "traefik.http.routers.ptitspas-uploads.entrypoints=websecure"
+      - "traefik.http.routers.ptitspas-uploads.tls.certresolver=leresolver"
+      - "traefik.http.routers.ptitspas-uploads.priority=18"
+      - "traefik.http.routers.ptitspas-uploads.service=ptitspas-api"
     networks:
       - ptitspas_network
       - proxy_network