diff --git a/backend/src/main.ts b/backend/src/main.ts
index bcbaa5a..9c192d2 100644
--- a/backend/src/main.ts
+++ b/backend/src/main.ts
@@ -6,6 +6,18 @@ import { SwaggerModule } from '@nestjs/swagger/dist/swagger-module';
 import { DocumentBuilder } from '@nestjs/swagger';
 import { ValidationPipe } from '@nestjs/common';
 import { LogRequestInterceptor } from './common/interceptors/log-request.interceptor';
+import * as path from 'path';
+
+/** Répertoire disque contenant le dossier `photos` (ex. /app/uploads si photos dans /app/uploads/photos). */
+function resolveUploadsFilesystemRoot(): string {
+  const raw = process.env.UPLOAD_PHOTOS_DIR?.trim();
+  const photosDir = raw
+    ? path.isAbsolute(raw)
+      ? raw
+      : path.resolve(process.cwd(), raw)
+    : path.join(process.cwd(), 'uploads', 'photos');
+  return path.dirname(photosDir);
+}
 
 async function bootstrap() {
   const app = await NestFactory.create<NestExpressApplication>(AppModule, {
@@ -16,6 +28,13 @@ async function bootstrap() {
   app.useBodyParser('json', { limit: '15mb' });
   app.useBodyParser('urlencoded', { extended: true, limit: '15mb' });
 
+  // Servir les fichiers sous /uploads/... (photos enfants / AM). Traefik doit router /uploads vers l’API.
+  app.useStaticAssets(resolveUploadsFilesystemRoot(), {
+    prefix: '/uploads/',
+    index: false,
+    fallthrough: true,
+  });
+
   // Log de chaque appel API si LOG_API_REQUESTS=true (mode debug)
   app.useGlobalInterceptors(new LogRequestInterceptor());
 
diff --git a/backend/src/routes/auth/auth.service.ts b/backend/src/routes/auth/auth.service.ts
index f509413..2665721 100644
--- a/backend/src/routes/auth/auth.service.ts
+++ b/backend/src/routes/auth/auth.service.ts
@@ -23,6 +23,8 @@ import { Parents } from 'src/entities/parents.entity';
 import { Children, StatutEnfantType } from 'src/entities/children.entity';
 import { ParentsChildren } from 'src/entities/parents_children.entity';
 import { AssistanteMaternelle } from 'src/entities/assistantes_maternelles.entity';
+import { DossierFamille, DossierFamilleEnfant } from 'src/entities/dossier_famille.entity';
+import { StatutDossierType } from 'src/entities/dossiers.entity';
 import { LoginDto } from './dto/login.dto';
 import { RepriseDossierDto } from './dto/reprise-dossier.dto';
 import { RepriseIdentifyResponseDto } from './dto/reprise-identify.dto';
@@ -335,6 +337,25 @@ export class AuthService {
                 }
             }
 
+            // Dossier famille : motivation (texte_motivation côté GET) + liaisons enfants (ticket #119)
+            const presentationTrim = dto.presentation_dossier?.trim();
+            const dossierFamilleEnt = manager.create(DossierFamille, {
+                numero_dossier: numeroDossier,
+                presentation: presentationTrim || undefined,
+                statut: StatutDossierType.ENVOYE,
+                parent: entiteParent,
+            });
+            const dossierFamilleSaved = await manager.save(DossierFamille, dossierFamilleEnt);
+            for (const enfantEnregistre of enfantsEnregistres) {
+                await manager.save(
+                    DossierFamilleEnfant,
+                    manager.create(DossierFamilleEnfant, {
+                        id_dossier_famille: dossierFamilleSaved.id,
+                        id_enfant: enfantEnregistre.id,
+                    }),
+                );
+            }
+
             return {
                 parent1: parent1Enregistre,
                 parent2: parent2Enregistre,
diff --git a/docker-compose.yml b/docker-compose.yml
index d5ff9c8..dcfa74b 100644
--- a/docker-compose.yml
+++ b/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
diff --git a/frontend/lib/models/dossier_unifie.dart b/frontend/lib/models/dossier_unifie.dart
index 83e3450..9dd4ccd 100644
--- a/frontend/lib/models/dossier_unifie.dart
+++ b/frontend/lib/models/dossier_unifie.dart
@@ -151,7 +151,7 @@ class ParentDossier {
 
   factory ParentDossier.fromJson(Map<String, dynamic> json) {
     return ParentDossier(
-      id: json['id']?.toString() ?? '',
+      id: json['user_id']?.toString() ?? json['id']?.toString() ?? '',
       email: json['email']?.toString() ?? '',
       prenom: json['prenom']?.toString(),
       nom: json['nom']?.toString(),