feat(#131): grille enfants AM, statuts garde et polish champs admin.

Aligne le front sur les statuts enfant back (garde/sans_garde), refond l’onglet Enfants accueillis en grille 2×2 avec correction des places, et unifie les champs validation éditables/lecture seule.

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

frontend/lib/widgets/admin/common/admin_am_edit_modal.dart

@@ -8,9 +8,9 @@ import 'package:p_tits_pas/utils/date_display_utils.dart';
 import 'package:p_tits_pas/utils/nir_utils.dart';
 import 'package:p_tits_pas/utils/phone_utils.dart';
 import 'package:p_tits_pas/services/user_service.dart';
+import 'package:p_tits_pas/widgets/admin/common/admin_am_children_capacity_grid.dart';
 import 'package:p_tits_pas/widgets/admin/common/admin_am_photo_frame.dart';
 import 'package:p_tits_pas/widgets/admin/common/admin_child_detail_modal.dart';
-import 'package:p_tits_pas/widgets/admin/common/admin_children_affiliation_panel.dart';
 import 'package:p_tits_pas/widgets/admin/common/admin_status_capsule.dart';
 import 'package:p_tits_pas/widgets/admin/common/validation_detail_section.dart';
 import 'package:p_tits_pas/widgets/common/identity_block.dart';
@@ -51,8 +51,8 @@ class _AdminAmEditModalState extends State<AdminAmEditModal>
 
   late String _statut;
   late bool _disponible;
+  late int? _placesAvailable;
   late List<ParentChildSummary> _children;
-  late final ScrollController _childrenScrollCtrl;
 
   bool _saving = false;
   bool _dirty = false;
@@ -64,12 +64,24 @@ class _AdminAmEditModalState extends State<AdminAmEditModal>
   static const double _proTabHeight = 300;
   static const List<int> _photoProRowLayout = [2, 2, 2];
 
+  /// Hauteur onglet enfants : champs + titre + grille 2×2 (+ alerte places si besoin).
+  double _childrenTabHeight() {
+    const capacityFields = 72.0;
+    const titleSection = 40.0;
+    const inconsistencyExtra = 46.0;
+    var h = capacityFields +
+        titleSection +
+        AdminAmChildrenCapacityGrid.fixedHeight;
+    if (_placesInconsistent()) h += inconsistencyExtra;
+    return h + 4;
+  }
+
   double _tabViewHeight(int index) {
     switch (index) {
       case 1:
         return _proTabHeight;
       case 2:
-        return 280;
+        return _childrenTabHeight();
       default:
         return 292;
     }
@@ -110,8 +122,8 @@ class _AdminAmEditModalState extends State<AdminAmEditModal>
     );
     _statut = u.statut ?? 'en_attente';
     _disponible = am.available ?? true;
+    _placesAvailable = am.placesAvailable;
     _children = List.of(am.children);
-    _childrenScrollCtrl = ScrollController();
 
     for (final c in [
       _nomCtrl,
@@ -167,7 +179,6 @@ class _AdminAmEditModalState extends State<AdminAmEditModal>
     ]) {
       c.dispose();
     }
-    _childrenScrollCtrl.dispose();
     super.dispose();
   }
 
@@ -217,19 +228,27 @@ class _AdminAmEditModalState extends State<AdminAmEditModal>
 
   bool _placesInconsistent() => amHasPlacesInconsistency(
         maxChildren: _capaciteMax(),
-        placesAvailable: widget.assistante.placesAvailable,
+        placesAvailable: _placesAvailable,
         childrenCount: _children.length,
       );
 
   String _placesDisplayValue() {
-    final stored = widget.assistante.placesAvailable;
-    if (stored != null) return stored.toString();
+    if (_placesAvailable != null) return _placesAvailable.toString();
     return '–';
   }
 
+  void _applyPlacesCorrection() {
+    final expected = _computedPlacesAvailable();
+    if (expected == null) return;
+    setState(() {
+      _placesAvailable = expected;
+      _dirty = true;
+    });
+  }
+
   String? _placesInconsistencyMessage() {
     if (!_placesInconsistent()) return null;
-    final stored = widget.assistante.placesAvailable;
+    final stored = _placesAvailable;
     final expected = _computedPlacesAvailable();
     final storedLabel = stored?.toString() ?? 'non renseigné';
     final expectedLabel = expected?.toString() ?? '–';
@@ -289,6 +308,8 @@ class _AdminAmEditModalState extends State<AdminAmEditModal>
           if (_frDateToIso(_dateAgrementCtrl.text) != null)
             'agreement_date': _frDateToIso(_dateAgrementCtrl.text),
           if (_capaciteMax() != null) 'max_children': _capaciteMax(),
+          if (_placesAvailable != widget.assistante.placesAvailable)
+            'places_available': _placesAvailable,
           'available': _disponible,
         },
       );
@@ -363,9 +384,7 @@ class _AdminAmEditModalState extends State<AdminAmEditModal>
           ),
           ElevatedButton(
             onPressed: () => Navigator.pop(ctx, true),
-            style: ElevatedButton.styleFrom(
-              backgroundColor: Colors.red.shade700,
-            ),
+            style: ValidationModalTheme.primaryElevatedStyle,
             child: const Text('Détacher'),
           ),
         ],
@@ -470,13 +489,11 @@ class _AdminAmEditModalState extends State<AdminAmEditModal>
     return ValidationFormGrid(
       title: 'Dossier professionnel',
       rowLayout: _photoProRowLayout,
-      compact: true,
       fields: [
         ValidationLabeledField(
           label: 'NIR',
           field: ValidationEditableField(
             controller: _nirCtrl,
-            compact: true,
             hintText: '15 chiffres',
             inputFormatters: [
               FilteringTextInputFormatter.allow(RegExp(r'[\d\s]')),
@@ -487,7 +504,6 @@ class _AdminAmEditModalState extends State<AdminAmEditModal>
           label: 'Date de naissance',
           field: ValidationEditableField(
             controller: _dateNaissanceCtrl,
-            compact: true,
             hintText: 'jj/mm/aaaa',
           ),
         ),
@@ -495,28 +511,24 @@ class _AdminAmEditModalState extends State<AdminAmEditModal>
           label: 'Ville de naissance',
           field: ValidationEditableField(
             controller: _lieuNaissanceVilleCtrl,
-            compact: true,
           ),
         ),
         ValidationLabeledField(
           label: 'Pays de naissance',
           field: ValidationEditableField(
             controller: _lieuNaissancePaysCtrl,
-            compact: true,
           ),
         ),
         ValidationLabeledField(
           label: 'N° Agrément',
           field: ValidationEditableField(
             controller: _agrementCtrl,
-            compact: true,
           ),
         ),
         ValidationLabeledField(
           label: 'Date d\'agrément',
           field: ValidationEditableField(
             controller: _dateAgrementCtrl,
-            compact: true,
             hintText: 'jj/mm/aaaa',
           ),
         ),
@@ -583,7 +595,6 @@ class _AdminAmEditModalState extends State<AdminAmEditModal>
       crossAxisAlignment: CrossAxisAlignment.stretch,
       children: [
         ValidationEditableSection(
-          compact: true,
           rowLayout: const [2],
           fields: [
             ValidationLabeledField(
@@ -592,14 +603,12 @@ class _AdminAmEditModalState extends State<AdminAmEditModal>
                 controller: _capaciteCtrl,
                 keyboardType: TextInputType.number,
                 inputFormatters: [FilteringTextInputFormatter.digitsOnly],
-                compact: true,
               ),
             ),
             ValidationLabeledField(
               label: 'Places disponibles',
               field: ValidationReadOnlyField(
                 value: _placesDisplayValue(),
-                compact: true,
                 error: inconsistent,
               ),
             ),
@@ -607,13 +616,37 @@ class _AdminAmEditModalState extends State<AdminAmEditModal>
         ),
         if (inconsistent) ...[
           const SizedBox(height: 6),
-          Text(
-            _placesInconsistencyMessage()!,
-            style: TextStyle(
-              fontSize: 12,
-              color: Colors.red.shade700,
-              height: 1.3,
-            ),
+          Wrap(
+            crossAxisAlignment: WrapCrossAlignment.center,
+            spacing: 6,
+            runSpacing: 4,
+            children: [
+              Text(
+                _placesInconsistencyMessage()!,
+                style: TextStyle(
+                  fontSize: 12,
+                  color: Colors.red.shade700,
+                  height: 1.3,
+                ),
+              ),
+              OutlinedButton(
+                onPressed: _saving ? null : _applyPlacesCorrection,
+                style: OutlinedButton.styleFrom(
+                  foregroundColor: Colors.red.shade800,
+                  disabledForegroundColor: Colors.red.shade300,
+                  side: BorderSide(color: Colors.red.shade400),
+                  padding: const EdgeInsets.symmetric(horizontal: 10, vertical: 5),
+                  minimumSize: const Size(0, 28),
+                  tapTargetSize: MaterialTapTargetSize.shrinkWrap,
+                  visualDensity: VisualDensity.compact,
+                  textStyle: const TextStyle(
+                    fontSize: 12,
+                    fontWeight: FontWeight.w600,
+                  ),
+                ),
+                child: const Text('Mettre à jour'),
+              ),
+            ],
           ),
         ],
       ],
@@ -621,6 +654,7 @@ class _AdminAmEditModalState extends State<AdminAmEditModal>
   }
 
   Widget _childrenTab() {
+    final capacity = (_capaciteMax() ?? 4).clamp(1, 4);
     return Column(
       crossAxisAlignment: CrossAxisAlignment.stretch,
       children: [
@@ -634,20 +668,12 @@ class _AdminAmEditModalState extends State<AdminAmEditModal>
             color: Colors.black87,
           ),
         ),
-        const SizedBox(height: 2),
-        Text(
-          'Enfants rattachés à cette assistante (accueil / garde).',
-          style: TextStyle(fontSize: 12, color: Colors.grey.shade700),
-        ),
         const SizedBox(height: 8),
-        Expanded(
-          child: AdminChildrenAffiliationPanel(
-            children: _children,
-            scrollController: _childrenScrollCtrl,
-            onOpen: _openChild,
-            onDetach: _detachChild,
-            emptyMessage: 'Aucun enfant rattaché à cette assistante',
-          ),
+        AdminAmChildrenCapacityGrid(
+          children: _children,
+          capacity: capacity,
+          onOpen: _openChild,
+          onDetach: _detachChild,
         ),
       ],
     );