feat(#131): fiches parent/AM éditable, placement AM↔enfant, statuts garde/sans_garde

Squash merge develop → master.

- Fiche parent éditable (co-parent, PATCH fiche, GET /parents)
- Fiche AM 3 onglets (PATCH fiche, rattacher/détacher enfants)
- Table enfants_assistantes_maternelles + enum garde/sans_garde
- Migration SQL + BDD.sql canonique
- Correctifs recette : @Get() parents, DTO fiche AM, fix NIR

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

frontend/lib/widgets/admin/assistante_maternelle_management_widget.dart

@@ -1,8 +1,8 @@
 import 'package:flutter/material.dart';
 import 'package:p_tits_pas/models/assistante_maternelle_model.dart';
-import 'package:p_tits_pas/utils/phone_utils.dart';
+import 'package:p_tits_pas/utils/am_vigilance.dart';
 import 'package:p_tits_pas/services/user_service.dart';
-import 'package:p_tits_pas/widgets/admin/common/admin_detail_modal.dart';
+import 'package:p_tits_pas/widgets/admin/common/admin_am_edit_modal.dart';
 import 'package:p_tits_pas/widgets/admin/common/admin_user_card.dart';
 import 'package:p_tits_pas/widgets/admin/common/user_list.dart';
 
@@ -77,10 +77,12 @@ class _AssistanteMaternelleManagementWidgetState
       itemCount: filteredAssistantes.length,
       itemBuilder: (context, index) {
         final assistante = filteredAssistantes[index];
+        final vigilance = amPlacesVigilanceMessage(assistante);
         return AdminUserCard(
           title: assistante.user.fullName,
           avatarUrl: assistante.user.photoUrl,
           fallbackIcon: Icons.face,
+          vigilanceTooltip: vigilance,
           subtitleLines: [
             assistante.user.email,
             'Zone : ${assistante.residenceCity ?? 'N/A'} | Capacité : ${assistante.maxChildren ?? 0}',
@@ -102,55 +104,10 @@ class _AssistanteMaternelleManagementWidgetState
   void _openAssistanteDetails(AssistanteMaternelleModel assistante) {
     showDialog<void>(
       context: context,
-      builder: (context) => AdminDetailModal(
-        title: assistante.user.fullName.isEmpty
-            ? 'Assistante maternelle'
-            : assistante.user.fullName,
-        subtitle: assistante.user.email,
-        fields: [
-          AdminDetailField(label: 'ID', value: _v(assistante.user.id)),
-          AdminDetailField(
-            label: 'Numero agrement',
-            value: _v(assistante.approvalNumber),
-          ),
-          AdminDetailField(
-            label: 'Ville residence',
-            value: _v(assistante.residenceCity),
-          ),
-          AdminDetailField(
-            label: 'Capacite max',
-            value: assistante.maxChildren?.toString() ?? '-',
-          ),
-          AdminDetailField(
-            label: 'Places disponibles',
-            value: assistante.placesAvailable?.toString() ?? '-',
-          ),
-          AdminDetailField(
-            label: 'Telephone',
-            value: _v(assistante.user.telephone) != '–' ? formatPhoneForDisplay(_v(assistante.user.telephone)) : '–',
-          ),
-          AdminDetailField(label: 'Adresse', value: _v(assistante.user.adresse)),
-          AdminDetailField(label: 'Ville', value: _v(assistante.user.ville)),
-          AdminDetailField(
-            label: 'Code postal',
-            value: _v(assistante.user.codePostal),
-          ),
-        ],
-        onEdit: () {
-          Navigator.of(context).pop();
-          ScaffoldMessenger.of(this.context).showSnackBar(
-            const SnackBar(content: Text('Action Modifier a implementer')),
-          );
-        },
-        onDelete: () {
-          Navigator.of(context).pop();
-          ScaffoldMessenger.of(this.context).showSnackBar(
-            const SnackBar(content: Text('Action Supprimer a implementer')),
-          );
-        },
+      builder: (context) => AdminAmEditModal(
+        assistante: assistante,
+        onSaved: _loadAssistantes,
       ),
     );
   }
-
-  String _v(String? value) => (value == null || value.isEmpty) ? '-' : value;
 }