feat(#112): aligner reprise front sur dossier complet GET/PATCH

Préremplit parents, enfants, motivation et fiche AM depuis reprise-dossier
et envoie le body PATCH complet (co-parent, enfants par id, champs pro AM).

Co-authored-by: Cursor <cursoragent@cursor.com>

frontend/lib/models/am_registration_data.dart

@@ -117,6 +117,16 @@ class AmRegistrationData extends ChangeNotifier {
     required String postalCode,
     required String city,
     String? existingPhotoUrl,
+    bool consentementPhoto = false,
+    DateTime? dateOfBirth,
+    String birthCity = '',
+    String birthCountry = '',
+    String nir = '',
+    String agrementNumber = '',
+    DateTime? agreementDate,
+    int? capacity,
+    int? placesAvailable,
+    String presentationText = '',
   }) {
     this.firstName = firstName;
     this.lastName = lastName;
@@ -130,16 +140,16 @@ class AmRegistrationData extends ChangeNotifier {
     photoPath = existingPhotoUrl;
     photoBytes = null;
     photoFilename = null;
-    photoConsent = false;
+    photoConsent = consentementPhoto;
-    dateOfBirth = null;
+    dateOfBirth = dateOfBirth;
-    birthCity = '';
+    this.birthCity = birthCity;
-    birthCountry = '';
+    this.birthCountry = birthCountry;
-    nir = '';
+    this.nir = nir;
-    agrementNumber = '';
+    this.agrementNumber = agrementNumber;
-    agreementDate = null;
+    agreementDate = agreementDate;
-    capacity = null;
+    this.capacity = capacity;
-    placesAvailable = null;
+    placesAvailable = placesAvailable;
-    presentationText = '';
+    this.presentationText = presentationText;
     cguAccepted = false;
     notifyListeners();
   }
@@ -187,8 +197,8 @@ class AmRegistrationData extends ChangeNotifier {
   bool get isRegistrationComplete =>
       isStep1Complete && isStep2Complete && isStep3Complete;
 
-  /// Reprise (#112) : champs renvoyés par PATCH reprise-resoumettre.
+  /// Reprise (#112) : dossier AM complet renvoyé par PATCH reprise-resoumettre.
-  bool get isRepriseSubmitReady => isStep1Complete && cguAccepted;
+  bool get isRepriseSubmitReady => isRegistrationComplete;
 
   @override
   String toString() {

frontend/lib/models/dossier_unifie.dart

@@ -184,6 +184,7 @@ class EnfantDossier {
   final String? dueDate;
   final String? photoUrl;
   final bool consentPhoto;
+  final bool estMultiple;
 
   EnfantDossier({
     required this.id,
@@ -195,6 +196,7 @@ class EnfantDossier {
     this.dueDate,
     this.photoUrl,
     this.consentPhoto = false,
+    this.estMultiple = false,
   });
 
   String get fullName => '${firstName ?? ''} ${lastName ?? ''}'.trim();
@@ -223,6 +225,8 @@ class EnfantDossier {
       photoUrl: resolvedPhoto,
       consentPhoto:
           json['consent_photo'] == true || json['consentPhoto'] == true,
+      estMultiple:
+          json['est_multiple'] == true || json['estMultiple'] == true,
     );
   }
 }

frontend/lib/models/reprise_dossier.dart

@@ -1,4 +1,6 @@
-/// Réponse GET /auth/reprise-dossier. Ticket #111, #112.
+import 'package:p_tits_pas/models/dossier_unifie.dart';
+
+/// Réponse GET /auth/reprise-dossier. Tickets #111, #112.
 class RepriseDossier {
   final String id;
   final String email;
@@ -14,6 +16,21 @@ class RepriseDossier {
   final String? genre;
   final String? situationFamiliale;
 
+  final List<ParentDossier> parents;
+  final List<EnfantDossier> enfants;
+  final String? texteMotivation;
+
+  final bool? consentementPhoto;
+  final String? dateNaissance;
+  final String? lieuNaissanceVille;
+  final String? lieuNaissancePays;
+  final String? numeroAgrement;
+  final String? nir;
+  final String? dateAgrement;
+  final int? nbMaxEnfants;
+  final int? placeDisponible;
+  final String? biographie;
+
   const RepriseDossier({
     required this.id,
     required this.email,
@@ -28,12 +45,44 @@ class RepriseDossier {
     this.photoUrl,
     this.genre,
     this.situationFamiliale,
+    this.parents = const [],
+    this.enfants = const [],
+    this.texteMotivation,
+    this.consentementPhoto,
+    this.dateNaissance,
+    this.lieuNaissanceVille,
+    this.lieuNaissancePays,
+    this.numeroAgrement,
+    this.nir,
+    this.dateAgrement,
+    this.nbMaxEnfants,
+    this.placeDisponible,
+    this.biographie,
   });
 
   bool get isParent => role == 'parent';
   bool get isAm => role == 'assistante_maternelle';
 
   factory RepriseDossier.fromJson(Map<String, dynamic> json) {
+    final parentsRaw = json['parents'];
+    final parentsList = parentsRaw is List
+        ? parentsRaw
+            .where((e) => e is Map)
+            .map((e) => ParentDossier.fromJson(Map<String, dynamic>.from(e as Map)))
+            .toList()
+        : <ParentDossier>[];
+
+    final enfantsRaw = json['enfants'];
+    final enfantsList = enfantsRaw is List
+        ? enfantsRaw
+            .where((e) => e is Map)
+            .map((e) => EnfantDossier.fromJson(Map<String, dynamic>.from(e as Map)))
+            .toList()
+        : <EnfantDossier>[];
+
+    final nbMax = json['nb_max_enfants'];
+    final places = json['place_disponible'];
+
     return RepriseDossier(
       id: json['id']?.toString() ?? '',
       email: json['email']?.toString() ?? '',
@@ -48,6 +97,21 @@ class RepriseDossier {
       photoUrl: json['photo_url']?.toString(),
       genre: json['genre']?.toString(),
       situationFamiliale: json['situation_familiale']?.toString(),
+      parents: parentsList,
+      enfants: enfantsList,
+      texteMotivation: (json['texte_motivation'] ?? json['presentation_dossier'])
+          ?.toString(),
+      consentementPhoto: json['consentement_photo'] == true,
+      dateNaissance: json['date_naissance']?.toString(),
+      lieuNaissanceVille: json['lieu_naissance_ville']?.toString(),
+      lieuNaissancePays: json['lieu_naissance_pays']?.toString(),
+      numeroAgrement: json['numero_agrement']?.toString(),
+      nir: json['nir']?.toString(),
+      dateAgrement: json['date_agrement']?.toString(),
+      nbMaxEnfants: nbMax is int ? nbMax : (nbMax is num ? nbMax.toInt() : null),
+      placeDisponible:
+          places is int ? places : (places is num ? places.toInt() : null),
+      biographie: json['biographie']?.toString(),
     );
   }
 }

frontend/lib/models/user_registration_data.dart

@@ -43,6 +43,10 @@ class ChildData {
   /// Octets de la photo (fiable à l’envoi API ; [imageFile] peut être absent sur le web).
   Uint8List? imageBytes;
   CardColorVertical cardColor; // Nouveau champ pour la couleur de la carte
+  /// UUID enfant en base (reprise #112) — requis pour PATCH reprise-resoumettre.
+  String? repriseChildId;
+  /// Photo déjà stockée (affichage reprise sans re-upload).
+  String? existingPhotoUrl;
 
   ChildData({
     this.firstName = '',
@@ -55,6 +59,8 @@ class ChildData {
     this.imageFile,
     this.imageBytes,
     required this.cardColor, // Rendre requis dans le constructeur
+    this.repriseChildId,
+    this.existingPhotoUrl,
   });
 
   ChildData copyWith({
@@ -68,6 +74,8 @@ class ChildData {
     Object? imageFile = _unsetImage,
     Object? imageBytes = _unsetImageBytes,
     CardColorVertical? cardColor,
+    String? repriseChildId,
+    String? existingPhotoUrl,
   }) {
     return ChildData(
       firstName: firstName ?? this.firstName,
@@ -81,6 +89,8 @@ class ChildData {
       imageBytes:
           identical(imageBytes, _unsetImageBytes) ? this.imageBytes : imageBytes as Uint8List?,
       cardColor: cardColor ?? this.cardColor,
+      repriseChildId: repriseChildId ?? this.repriseChildId,
+      existingPhotoUrl: existingPhotoUrl ?? this.existingPhotoUrl,
     );
   }
 }
@@ -180,27 +190,17 @@ class UserRegistrationData extends ChangeNotifier {
 
   /// Reprise après refus (#112) : réinitialise le flux parent avec les données dossier.
   void resetForReprise({
-    required String firstName,
+    required ParentData parent1Data,
-    required String lastName,
+    ParentData? parent2Data,
-    required String phone,
+    List<ChildData>? childrenData,
-    required String email,
+    String motivation = '',
-    required String address,
-    required String postalCode,
-    required String city,
   }) {
-    parent1 = ParentData(
+    parent1 = parent1Data;
-      firstName: firstName,
+    parent2 = parent2Data;
-      lastName: lastName,
+    children
-      phone: phone,
+      ..clear()
-      email: email,
+      ..addAll(childrenData ?? const []);
-      address: address,
+    motivationText = motivation;
-      postalCode: postalCode,
-      city: city,
-      password: '',
-    );
-    parent2 = null;
-    children.clear();
-    motivationText = '';
     cguAccepted = false;
     bankDetails = null;
     attestationCafNumber = '';
@@ -208,11 +208,16 @@ class UserRegistrationData extends ChangeNotifier {
     notifyListeners();
   }
 
-  /// Reprise (#112) : coordonnées parent principal + CGU.
+  /// Reprise (#112) : coordonnées + enfants connus + CGU.
   bool get isRepriseSubmitReady =>
       parent1.firstName.isNotEmpty &&
       parent1.lastName.isNotEmpty &&
       parent1.email.isNotEmpty &&
+      children.isNotEmpty &&
+      children.every(
+        (c) =>
+            c.repriseChildId != null && c.repriseChildId!.trim().isNotEmpty,
+      ) &&
       cguAccepted;
 
   // Méthode pour vérifier si toutes les données requises sont là (simplifié)

frontend/lib/screens/auth/am_register_step4_screen.dart

@@ -9,6 +9,7 @@ import '../../models/card_assets.dart';
 import '../../config/display_config.dart';
 import '../../services/auth_service.dart';
 import '../../services/reprise_session.dart';
+import '../../utils/reprise_payload.dart';
 import '../../widgets/hover_relief_widget.dart';
 import '../../widgets/image_button.dart';
 import '../../widgets/custom_navigation_button.dart';
@@ -59,14 +60,11 @@ class _AmRegisterStep4ScreenState extends State<AmRegisterStep4Screen> {
     try {
       if (RepriseSession.isActive) {
         await AuthService.resoumettreReprise(
-          token: RepriseSession.token!,
+          await ReprisePayload.amPatch(
-          prenom: registrationData.firstName,
+            registrationData,
-          nom: registrationData.lastName,
+            RepriseSession.token!,
-          telephone: registrationData.phone,
+            existingPhotoUrl: RepriseSession.photoUrlForApi,
-          adresse: registrationData.streetAddress,
+          ),
-          ville: registrationData.city,
-          codePostal: registrationData.postalCode,
-          photoUrl: RepriseSession.photoUrl,
         );
         RepriseSession.clear();
         if (!mounted) return;

frontend/lib/screens/auth/parent_register_step5_screen.dart

@@ -15,6 +15,7 @@ import '../../widgets/child_card_widget.dart';
 import '../../widgets/presentation_form_screen.dart';
 import '../../services/auth_service.dart';
 import '../../services/reprise_session.dart';
+import '../../utils/reprise_payload.dart';
 
 class ParentRegisterStep5Screen extends StatefulWidget {
   const ParentRegisterStep5Screen({super.key});
@@ -33,7 +34,7 @@ class _ParentRegisterStep5ScreenState extends State<ParentRegisterStep5Screen> {
         ScaffoldMessenger.of(context).showSnackBar(
           SnackBar(
             content: Text(
-              'Vérifiez vos coordonnées et acceptez les conditions.',
+              'Vérifiez vos coordonnées, les enfants et acceptez les conditions.',
               style: GoogleFonts.merienda(fontSize: 14),
             ),
             backgroundColor: Colors.red.shade700,
@@ -46,15 +47,8 @@ class _ParentRegisterStep5ScreenState extends State<ParentRegisterStep5Screen> {
     try {
       if (RepriseSession.isActive) {
         final token = RepriseSession.token!;
-        final p = data.parent1;
         await AuthService.resoumettreReprise(
-          token: token,
+          ReprisePayload.parentPatch(data, token),
-          prenom: p.firstName,
-          nom: p.lastName,
-          telephone: p.phone,
-          adresse: p.address,
-          ville: p.city,
-          codePostal: p.postalCode,
         );
         RepriseSession.clear();
         if (!context.mounted) return;

frontend/lib/services/auth_service.dart

@@ -291,43 +291,20 @@ class AuthService {
   }
 
   /// Resoumission après refus. PATCH /auth/reprise-resoumettre. Ticket #112.
-  static Future<void> resoumettreReprise({
+  static Future<void> resoumettreReprise(Map<String, dynamic> body) async {
-    required String token,
+    final cleaned = body['token']?.toString().trim() ?? '';
-    String? prenom,
-    String? nom,
-    String? telephone,
-    String? adresse,
-    String? ville,
-    String? codePostal,
-    String? photoUrl,
-  }) async {
-    final cleaned = token.trim();
     if (cleaned.isEmpty) {
       throw Exception('Lien invalide ou expiré.');
     }
-    final body = <String, dynamic>{'token': cleaned};
+    final payload = Map<String, dynamic>.from(body);
-    if (prenom != null && prenom.trim().isNotEmpty) body['prenom'] = prenom.trim();
+    payload['token'] = cleaned;
-    if (nom != null && nom.trim().isNotEmpty) body['nom'] = nom.trim();
-    if (telephone != null && telephone.trim().isNotEmpty) {
-      body['telephone'] = telephone.trim();
-    }
-    if (adresse != null && adresse.trim().isNotEmpty) {
-      body['adresse'] = adresse.trim();
-    }
-    if (ville != null && ville.trim().isNotEmpty) body['ville'] = ville.trim();
-    if (codePostal != null && codePostal.trim().isNotEmpty) {
-      body['code_postal'] = codePostal.trim();
-    }
-    if (photoUrl != null && photoUrl.trim().isNotEmpty) {
-      body['photo_url'] = photoUrl.trim();
-    }
 
     late final http.Response response;
     try {
       response = await http.patch(
         Uri.parse('${ApiConfig.baseUrl}${ApiConfig.repriseResoumettre}'),
         headers: ApiConfig.headers,
-        body: jsonEncode(body),
+        body: jsonEncode(payload),
       );
     } on http.ClientException {
       throw Exception(

frontend/lib/services/reprise_session.dart

@@ -2,6 +2,7 @@ import 'package:p_tits_pas/models/am_registration_data.dart';
 import 'package:p_tits_pas/models/reprise_dossier.dart';
 import 'package:p_tits_pas/models/user_registration_data.dart';
 import 'package:p_tits_pas/services/api/api_config.dart';
+import 'package:p_tits_pas/utils/reprise_mapper.dart';
 
 /// Contexte reprise après refus (token e-mail ou identify). Ticket #112.
 class RepriseSession {
@@ -10,6 +11,7 @@ class RepriseSession {
   static String? _token;
   static String? _role;
   static String? _photoUrl;
+  static String? _photoUrlForApi;
 
   static bool get isActive =>
       _token != null && _token!.trim().isNotEmpty;
@@ -20,16 +22,22 @@ class RepriseSession {
 
   static bool get isAm => _role == 'assistante_maternelle';
 
+  /// URL absolue pour l'affichage.
   static String? get photoUrl => _photoUrl;
 
+  /// Chemin relatif API (`/uploads/…`) pour PATCH sans re-upload.
+  static String? get photoUrlForApi => _photoUrlForApi;
+
   static void start({
     required String token,
     required RepriseDossier dossier,
   }) {
     _token = token.trim();
     _role = dossier.role;
-    _photoUrl = dossier.photoUrl?.trim().isNotEmpty == true
+    final raw = dossier.photoUrl?.trim();
-        ? ApiConfig.absoluteMediaUrl(dossier.photoUrl)
+    _photoUrlForApi = raw != null && raw.isNotEmpty ? raw : null;
+    _photoUrl = _photoUrlForApi != null
+        ? ApiConfig.absoluteMediaUrl(_photoUrlForApi)
         : null;
   }
 
@@ -37,22 +45,15 @@ class RepriseSession {
     _token = null;
     _role = null;
     _photoUrl = null;
+    _photoUrlForApi = null;
   }
 
   static void applyToParent(UserRegistrationData data, RepriseDossier dossier) {
-    data.resetForReprise(
+    RepriseMapper.applyParentDossier(data, dossier);
-      firstName: dossier.prenom ?? '',
-      lastName: dossier.nom ?? '',
-      phone: dossier.telephone ?? '',
-      email: dossier.email,
-      address: dossier.adresse ?? '',
-      postalCode: dossier.codePostal ?? '',
-      city: dossier.ville ?? '',
-    );
   }
 
   static void applyToAm(AmRegistrationData data, RepriseDossier dossier) {
-    final photo = _photoUrl;
+    final displayPhoto = _photoUrl;
     data.resetForReprise(
       firstName: dossier.prenom ?? '',
       lastName: dossier.nom ?? '',
@@ -61,7 +62,17 @@ class RepriseSession {
       streetAddress: dossier.adresse ?? '',
       postalCode: dossier.codePostal ?? '',
       city: dossier.ville ?? '',
-      existingPhotoUrl: photo,
+      existingPhotoUrl: displayPhoto,
+      consentementPhoto: dossier.consentementPhoto ?? false,
+      dateOfBirth: RepriseMapper.parseIsoDate(dossier.dateNaissance),
+      birthCity: dossier.lieuNaissanceVille ?? '',
+      birthCountry: dossier.lieuNaissancePays ?? '',
+      nir: dossier.nir ?? '',
+      agrementNumber: dossier.numeroAgrement ?? '',
+      agreementDate: RepriseMapper.parseIsoDate(dossier.dateAgrement),
+      capacity: dossier.nbMaxEnfants,
+      placesAvailable: dossier.placeDisponible,
+      presentationText: dossier.biographie ?? '',
     );
   }
 }

frontend/lib/utils/parent_registration_payload.dart

@@ -149,6 +149,20 @@ class ParentRegistrationPayload {
     return body;
   }
 
+  /// Enfant pour PATCH reprise (inclut `id` si connu).
+  static Map<String, dynamic> childToRepriseJson(
+    ChildData c,
+    int index,
+    String parentNom,
+  ) {
+    final map = _childToJson(c, index, parentNom);
+    final id = c.repriseChildId?.trim();
+    if (id != null && id.isNotEmpty) {
+      map['id'] = id;
+    }
+    return map;
+  }
+
   static Map<String, dynamic> _childToJson(ChildData c, int index, String parentNom) {
     final map = <String, dynamic>{
       'genre': apiGenres.contains(c.genre) ? c.genre : 'Autre',

frontend/lib/utils/reprise_mapper.dart

@@ -0,0 +1,120 @@
+import 'package:p_tits_pas/models/card_assets.dart';
+import 'package:p_tits_pas/models/dossier_unifie.dart';
+import 'package:p_tits_pas/models/reprise_dossier.dart';
+import 'package:p_tits_pas/models/user_registration_data.dart';
+import 'package:p_tits_pas/services/api/api_config.dart';
+
+/// Mapping GET reprise-dossier → modèles wizard. Ticket #112.
+class RepriseMapper {
+  RepriseMapper._();
+
+  static const List<CardColorVertical> _childCardColors = [
+    CardColorVertical.lavender,
+    CardColorVertical.pink,
+    CardColorVertical.peach,
+    CardColorVertical.lime,
+    CardColorVertical.red,
+    CardColorVertical.green,
+    CardColorVertical.blue,
+  ];
+
+  static ParentData parentFromDossier(ParentDossier p) {
+    return ParentData(
+      firstName: p.prenom ?? '',
+      lastName: p.nom ?? '',
+      phone: p.telephone ?? '',
+      email: p.email,
+      address: p.adresse ?? '',
+      postalCode: p.codePostal ?? '',
+      city: p.ville ?? '',
+      password: '',
+    );
+  }
+
+  static ChildData childFromEnfant(EnfantDossier e, int index) {
+    final isUnborn = e.status == 'a_naitre';
+    final dob = isUnborn
+        ? isoToDdMmYyyy(e.dueDate)
+        : isoToDdMmYyyy(e.birthDate);
+    final photo = e.photoUrl?.trim();
+    return ChildData(
+      firstName: e.firstName ?? '',
+      lastName: e.lastName ?? '',
+      dob: dob,
+      genre: e.gender ?? '',
+      photoConsent: e.consentPhoto,
+      multipleBirth: e.estMultiple,
+      isUnbornChild: isUnborn,
+      cardColor: _childCardColors[index % _childCardColors.length],
+      repriseChildId: e.id,
+      existingPhotoUrl: photo != null && photo.isNotEmpty
+          ? ApiConfig.absoluteMediaUrl(photo)
+          : null,
+    );
+  }
+
+  static void applyParentDossier(UserRegistrationData data, RepriseDossier dossier) {
+    ParentDossier? titulaire;
+    ParentDossier? coParent;
+
+    if (dossier.parents.isNotEmpty) {
+      for (final p in dossier.parents) {
+        if (p.id == dossier.id) {
+          titulaire = p;
+        } else {
+          coParent = p;
+        }
+      }
+      titulaire ??= dossier.parents.first;
+      if (coParent == null && dossier.parents.length > 1) {
+        coParent = dossier.parents.firstWhere(
+          (p) => p.id != titulaire!.id,
+          orElse: () => dossier.parents.last,
+        );
+      }
+    }
+
+    final p1 = titulaire != null
+        ? parentFromDossier(titulaire)
+        : ParentData(
+            firstName: dossier.prenom ?? '',
+            lastName: dossier.nom ?? '',
+            phone: dossier.telephone ?? '',
+            email: dossier.email,
+            address: dossier.adresse ?? '',
+            postalCode: dossier.codePostal ?? '',
+            city: dossier.ville ?? '',
+            password: '',
+          );
+
+    final children = dossier.enfants
+        .asMap()
+        .entries
+        .map((e) => childFromEnfant(e.value, e.key))
+        .toList();
+
+    data.resetForReprise(
+      parent1Data: p1,
+      parent2Data: coParent != null ? parentFromDossier(coParent) : null,
+      childrenData: children,
+      motivation: dossier.texteMotivation ?? '',
+    );
+  }
+
+  static DateTime? parseIsoDate(String? raw) {
+    if (raw == null || raw.trim().isEmpty) return null;
+    try {
+      return DateTime.parse(raw.trim());
+    } catch (_) {
+      return null;
+    }
+  }
+
+  static String isoToDdMmYyyy(String? iso) {
+    final dt = parseIsoDate(iso);
+    if (dt == null) return '';
+    return '${dt.day.toString().padLeft(2, '0')}/'
+        '${dt.month.toString().padLeft(2, '0')}/'
+        '${dt.year}';
+  }
+}

frontend/lib/utils/reprise_payload.dart

@@ -0,0 +1,150 @@
+import 'dart:convert';
+import 'dart:io';
+
+import 'package:flutter/foundation.dart';
+
+import '../models/am_registration_data.dart';
+import '../models/user_registration_data.dart';
+import 'nir_utils.dart';
+import 'parent_registration_payload.dart';
+
+/// Body PATCH /auth/reprise-resoumettre. Ticket #112.
+class ReprisePayload {
+  ReprisePayload._();
+
+  static Map<String, dynamic> parentPatch(
+    UserRegistrationData data,
+    String token,
+  ) {
+    final base = ParentRegistrationPayload.toJson(data);
+    base.remove('email');
+    base.remove('acceptation_cgu');
+    base.remove('acceptation_privacy');
+    base['token'] = token.trim();
+
+    final enfants = data.children.asMap().entries.map((e) {
+      final childMap = ParentRegistrationPayload.childToRepriseJson(
+        e.value,
+        e.key,
+        data.parent1.lastName.trim(),
+      );
+      return childMap;
+    }).toList();
+    base['enfants'] = enfants;
+
+    return base;
+  }
+
+  static Future<Map<String, dynamic>> amPatch(
+    AmRegistrationData data,
+    String token, {
+    String? existingPhotoUrl,
+  }) async {
+    final body = <String, dynamic>{'token': token.trim()};
+
+    _put(body, 'prenom', data.firstName.trim());
+    _put(body, 'nom', data.lastName.trim());
+    _put(body, 'telephone', data.phone.trim());
+    _put(body, 'adresse', data.streetAddress.trim());
+    _put(body, 'code_postal', data.postalCode.trim());
+    _put(body, 'ville', data.city.trim());
+
+    body['consentement_photo'] = data.photoConsent;
+
+    if (data.dateOfBirth != null) {
+      final d = data.dateOfBirth!;
+      body['date_naissance'] =
+          '${d.year}-${d.month.toString().padLeft(2, '0')}-${d.day.toString().padLeft(2, '0')}';
+    }
+    _put(body, 'lieu_naissance_ville', data.birthCity.trim());
+    _put(body, 'lieu_naissance_pays', data.birthCountry.trim());
+    _put(body, 'numero_agrement', data.agrementNumber.trim());
+    if (data.nir.trim().isNotEmpty) {
+      body['nir'] = normalizeNir(data.nir);
+    }
+    if (data.agreementDate != null) {
+      final d = data.agreementDate!;
+      body['date_agrement'] =
+          '${d.year}-${d.month.toString().padLeft(2, '0')}-${d.day.toString().padLeft(2, '0')}';
+    }
+    if (data.capacity != null) {
+      body['capacite_accueil'] = data.capacity;
+    }
+    if (data.placesAvailable != null) {
+      body['places_disponibles'] = data.placesAvailable;
+    }
+    if (data.presentationText.trim().isNotEmpty) {
+      body['biographie'] = data.presentationText.trim();
+    }
+
+    final photo = await _amPhotoPayload(data, existingPhotoUrl);
+    if (photo != null) {
+      body.addAll(photo);
+    }
+
+    return body;
+  }
+
+  static Future<Map<String, String>?> _amPhotoPayload(
+    AmRegistrationData data,
+    String? existingPhotoUrl,
+  ) async {
+    if (data.photoBytes != null && data.photoBytes!.isNotEmpty) {
+      final mime = _imageMimeForBytes(data.photoBytes!);
+      final fn = (data.photoFilename ?? '').trim();
+      return {
+        'photo_base64':
+            'data:$mime;base64,${base64Encode(data.photoBytes!)}',
+        'photo_filename': fn.isNotEmpty ? fn : 'photo_am.jpg',
+      };
+    }
+
+    if (!kIsWeb &&
+        data.photoPath != null &&
+        data.photoPath!.isNotEmpty &&
+        !data.photoPath!.startsWith('assets/') &&
+        !data.photoPath!.startsWith('http')) {
+      try {
+        final file = File(data.photoPath!);
+        if (await file.exists()) {
+          final bytes = await file.readAsBytes();
+          final mime = _imageMimeForBytes(bytes);
+          return {
+            'photo_base64': 'data:$mime;base64,${base64Encode(bytes)}',
+            'photo_filename':
+                _basenameFromPath(data.photoPath!) ?? 'photo_am.jpg',
+          };
+        }
+      } catch (_) {}
+    }
+
+    final url = (existingPhotoUrl ?? data.repriseExistingPhotoUrl ?? '').trim();
+    if (url.isNotEmpty) {
+      return {'photo_url': url};
+    }
+    return null;
+  }
+
+  static String _imageMimeForBytes(Uint8List bytes) {
+    if (bytes.length >= 2 && bytes[0] == 0xFF && bytes[1] == 0xD8) {
+      return 'image/jpeg';
+    }
+    if (bytes.length >= 8 &&
+        bytes[0] == 0x89 &&
+        bytes[1] == 0x50 &&
+        bytes[2] == 0x4E &&
+        bytes[3] == 0x47) {
+      return 'image/png';
+    }
+    return 'image/jpeg';
+  }
+
+  static String? _basenameFromPath(String path) {
+    final parts = path.replaceAll('\\', '/').split('/');
+    return parts.isEmpty ? null : parts.last;
+  }
+
+  static void _put(Map<String, dynamic> m, String key, String value) {
+    if (value.isNotEmpty) m[key] = value;
+  }
+}