feat(#160): suppressions dashboard — poubelle, confirmations et sans_enfant.

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

frontend/lib/widgets/admin/pending_validation_widget.dart

@@ -4,6 +4,7 @@ import 'package:p_tits_pas/models/user.dart';
 import 'package:p_tits_pas/models/pending_family.dart';
 import 'package:p_tits_pas/services/user_service.dart';
 import 'package:p_tits_pas/widgets/admin/dossier_list_card.dart';
+import 'package:p_tits_pas/widgets/admin/common/suppression_confirm_dialog.dart';
 import 'package:p_tits_pas/widgets/admin/validation_dossier_modal.dart';
 
 /// Section « dossiers à valider » (liste unifiée AM + familles). Ticket #107 / #153.
@@ -15,6 +16,8 @@ class PendingValidationWidget extends StatefulWidget {
   final bool compactWhenEmpty;
   /// Numéros des dossiers pending (pour exclure de « Tous les dossiers »).
   final ValueChanged<Set<String>>? onPendingNumerosChanged;
+  /// Afficher la poubelle (#160) — mêmes règles que dossiers validés.
+  final bool canDelete;
 
   const PendingValidationWidget({
     super.key,
@@ -22,6 +25,7 @@ class PendingValidationWidget extends StatefulWidget {
     this.searchQuery = '',
     this.compactWhenEmpty = false,
     this.onPendingNumerosChanged,
+    this.canDelete = false,
   });
 
   @override
@@ -141,6 +145,97 @@ class _PendingValidationWidgetState extends State<PendingValidationWidget> {
     );
   }
 
+  Future<void> _confirmDeletePending({
+    required String numeroDossier,
+    required String namesLine,
+    required bool isFamille,
+  }) async {
+    final num = numeroDossier.trim();
+    if (num.isEmpty) return;
+
+    var people = <SuppressionPersonLine>[];
+    String? fallbackSummary;
+    try {
+      final dossier = await UserService.getDossier(num);
+      if (dossier.isFamily) {
+        final f = dossier.asFamily;
+        people = suppressionPeopleFromDossier(
+          isFamille: true,
+          parents: f.parents
+              .map((p) => (
+                    nom: p.nom ?? '',
+                    prenom: p.prenom ?? '',
+                    email: p.email,
+                  ))
+              .toList(),
+          enfants: f.enfants
+              .map((e) => (
+                    nom: e.lastName ?? '',
+                    prenom: e.firstName ?? '',
+                  ))
+              .toList(),
+        );
+      } else {
+        final am = dossier.asAm.user;
+        people = suppressionPeopleFromDossier(
+          isFamille: false,
+          parents: const [],
+          enfants: const [],
+          amName: formatDossierPersonLabel(
+            nom: am.nom,
+            prenom: am.prenom,
+            email: am.email,
+          ),
+        );
+      }
+    } catch (_) {
+      fallbackSummary = isFamille
+          ? 'Tous les parents et enfants rattachés seront supprimés.'
+          : 'Le compte AM sera supprimé ; les enfants accueillis '
+              'seront conservés.';
+      for (final part in namesLine.split(' - ')) {
+        final label = part.trim();
+        if (label.isEmpty) continue;
+        people.add(SuppressionPersonLine(
+          label: label,
+          icon: isFamille
+              ? Icons.supervisor_account_outlined
+              : Icons.face,
+          role: isFamille ? 'Parent' : 'AM',
+        ));
+      }
+    }
+
+    if (!mounted) return;
+    final confirmed = await showDossierSuppressionConfirmDialog(
+      context,
+      numeroDossier: num,
+      isFamille: isFamille,
+      people: people,
+      fallbackSummary: fallbackSummary,
+    );
+    if (!confirmed || !mounted) return;
+    try {
+      final result = await UserService.deleteDossier(num);
+      if (!mounted) return;
+      final msg = (result['message'] ?? 'Dossier supprimé.').toString();
+      ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text(msg)));
+      await _load();
+      widget.onRefresh?.call();
+    } catch (e) {
+      if (!mounted) return;
+      ScaffoldMessenger.of(context).showSnackBar(
+        SnackBar(
+          content: Text(
+            e is Exception
+                ? e.toString().replaceFirst('Exception: ', '')
+                : 'Erreur suppression',
+          ),
+        ),
+      );
+    }
+  }
+
   bool _matchesQuery(String haystack) {
     final q = widget.searchQuery.trim().toLowerCase();
     if (q.isEmpty) return true;
@@ -286,12 +381,21 @@ class _PendingValidationWidgetState extends State<PendingValidationWidget> {
   }
 
   Widget _buildAMCard(AppUser user) {
+    final names = _amNamesLine(user);
+    final num = user.numeroDossier ?? '';
     return DossierListCard(
-      numeroDossier: user.numeroDossier ?? '',
-      namesLine: _amNamesLine(user),
+      numeroDossier: num,
+      namesLine: names,
       isFamille: false,
       photoUrl: user.photoUrl,
       onOpen: () => _onOpenValidation(numeroDossier: user.numeroDossier),
+      onDelete: widget.canDelete
+          ? () => _confirmDeletePending(
+                numeroDossier: num,
+                namesLine: names,
+                isFamille: false,
+              )
+          : null,
     );
   }
 
@@ -306,6 +410,13 @@ class _PendingValidationWidgetState extends State<PendingValidationWidget> {
       namesLine: names,
       isFamille: true,
       onOpen: () => _onOpenValidation(numeroDossier: family.numeroDossier),
+      onDelete: widget.canDelete
+          ? () => _confirmDeletePending(
+                numeroDossier: num,
+                namesLine: names,
+                isFamille: true,
+              )
+          : null,
     );
   }
 }