feat(#138): ouvrir la fiche parent depuis les responsables de la modale enfant.

Les noms du sous-titre deviennent des liens cliquables vers
AdminParentEditModal, comme l'ouverture de fiche AM.

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

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

@@ -8,6 +8,7 @@ import 'package:p_tits_pas/utils/date_display_utils.dart';
 import 'package:p_tits_pas/utils/enfant_status_utils.dart';
 import 'package:p_tits_pas/widgets/admin/common/admin_am_edit_modal.dart';
 import 'package:p_tits_pas/widgets/admin/common/admin_am_photo_frame.dart';
+import 'package:p_tits_pas/widgets/admin/common/admin_parent_edit_modal.dart';
 import 'package:p_tits_pas/widgets/admin/common/validation_detail_section.dart';
 import 'package:p_tits_pas/widgets/admin/validation_modal_theme.dart';
 import 'package:p_tits_pas/widgets/common/auth_network_image.dart';
@@ -170,16 +171,77 @@ class _AdminChildDetailModalState extends State<AdminChildDetailModal> {
     return '$fn $ln'.trim();
   }
 
-  String? _parentsSubtitle() {
+  List<EnfantParentLink> get _parentLinks => widget.enfant.parentLinks
-    final names = widget.enfant.parentLinks
+      .where((l) => l.parentId.trim().isNotEmpty)
-        .map((l) {
+      .toList();
-          final n = (l.parentName ?? '').trim();
+
-          return n.isNotEmpty ? n : 'Parent rattaché';
+  Future<void> _openParent(EnfantParentLink link) async {
-        })
+    if (_busy) return;
-        .where((s) => s.isNotEmpty)
+    final id = link.parentId.trim();
-        .toList();
+    if (id.isEmpty) return;
-    if (names.isEmpty) return null;
+
-    return 'Responsables : ${names.join(', ')}';
+    try {
+      final parent = await UserService.getParent(id);
+      if (!mounted) return;
+      await showDialog<void>(
+        context: context,
+        builder: (ctx) => AdminParentEditModal(
+          parent: parent,
+          onSaved: () => widget.onSaved?.call(),
+        ),
+      );
+    } catch (e) {
+      if (!mounted) return;
+      ScaffoldMessenger.of(context).showSnackBar(
+        SnackBar(content: Text(e.toString().replaceFirst('Exception: ', ''))),
+      );
+    }
+  }
+
+  Widget? _parentsSubtitle() {
+    final links = _parentLinks;
+    if (links.isEmpty) return null;
+
+    return Wrap(
+      crossAxisAlignment: WrapCrossAlignment.center,
+      children: [
+        const Text(
+          'Responsables : ',
+          style: TextStyle(fontSize: 13, color: Colors.black54),
+        ),
+        for (var i = 0; i < links.length; i++) ...[
+          if (i > 0)
+            const Text(
+              ', ',
+              style: TextStyle(fontSize: 13, color: Colors.black54),
+            ),
+          _parentNameLink(links[i]),
+        ],
+      ],
+    );
+  }
+
+  Widget _parentNameLink(EnfantParentLink link) {
+    final name = (link.parentName ?? '').trim();
+    final label = name.isNotEmpty ? name : 'Parent rattaché';
+    return InkWell(
+      onTap: _busy ? null : () => _openParent(link),
+      borderRadius: BorderRadius.circular(4),
+      child: Padding(
+        padding: const EdgeInsets.symmetric(horizontal: 2, vertical: 2),
+        child: Text(
+          label,
+          style: TextStyle(
+            fontSize: 13,
+            fontWeight: FontWeight.w600,
+            color: ValidationModalTheme.primaryActionBackground,
+            decoration: TextDecoration.underline,
+            decorationColor: ValidationModalTheme.primaryActionBackground
+                .withValues(alpha: 0.5),
+          ),
+        ),
+      ),
+    );
   }
 
   Future<void> _save() async {
@@ -994,13 +1056,7 @@ class _AdminChildDetailModalState extends State<AdminChildDetailModal> {
                         ),
                         if (_parentsSubtitle() != null) ...[
                           const SizedBox(height: 4),
-                          Text(
+                          _parentsSubtitle()!,
-                            _parentsSubtitle()!,
-                            style: const TextStyle(
-                              fontSize: 13,
-                              color: Colors.black54,
-                            ),
-                          ),
                         ],
                       ],
                     ),