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

@@ -20,8 +20,6 @@ class AdminAmChildrenCapacityGrid extends StatelessWidget {
   final int capacity;
   final void Function(ParentChildSummary child) onOpen;
   final void Function(ParentChildSummary child) onDetach;
-  /// Clic sur une case libre → même flux que « Rattacher un enfant » (#149).
-  final VoidCallback? onAttachEmpty;
 
   const AdminAmChildrenCapacityGrid({
     super.key,
@@ -29,7 +27,6 @@ class AdminAmChildrenCapacityGrid extends StatelessWidget {
     required this.capacity,
     required this.onOpen,
     required this.onDetach,
-    this.onAttachEmpty,
   });
 
   @override
@@ -81,7 +78,7 @@ class AdminAmChildrenCapacityGrid extends StatelessWidget {
       );
     }
     if (index < maxSlots) {
-      return _EmptySlot(onTap: onAttachEmpty);
+      return const _EmptySlot();
     }
     return const _UnavailableSlot();
   }
@@ -132,52 +129,18 @@ class _UnavailableSlot extends StatelessWidget {
   }
 }
 
-class _EmptySlot extends StatefulWidget {
-  final VoidCallback? onTap;
-
-  const _EmptySlot({this.onTap});
-
-  @override
-  State<_EmptySlot> createState() => _EmptySlotState();
-}
-
-class _EmptySlotState extends State<_EmptySlot> {
-  bool _hovered = false;
+class _EmptySlot extends StatelessWidget {
+  const _EmptySlot();
 
   @override
   Widget build(BuildContext context) {
-    final clickable = widget.onTap != null;
-    return MouseRegion(
-      onEnter: clickable ? (_) => setState(() => _hovered = true) : null,
-      onExit: clickable ? (_) => setState(() => _hovered = false) : null,
-      cursor: clickable ? SystemMouseCursors.click : MouseCursor.defer,
-      child: Material(
-        color: Colors.transparent,
-        borderRadius: BorderRadius.circular(8),
-        child: InkWell(
-          onTap: widget.onTap,
-          borderRadius: BorderRadius.circular(8),
-          hoverColor: const Color(0x149CC5C0),
-          child: _SlotShell(
-            backgroundColor: _hovered
-                ? const Color(0xFFF3F0FA)
-                : Colors.grey.shade50,
-            borderColor: _hovered
-                ? const Color(0xFFB8A4D4)
-                : Colors.grey.shade300,
-            child: Center(
-              child: Text(
-                'Place libre',
-                style: TextStyle(
-                  fontSize: 12,
-                  color: _hovered
-                      ? const Color(0xFF6B3FA0)
-                      : Colors.grey.shade500,
-                  fontWeight: _hovered ? FontWeight.w600 : FontWeight.w400,
-                ),
-              ),
-            ),
-          ),
+    return _SlotShell(
+      backgroundColor: Colors.grey.shade50,
+      borderColor: Colors.grey.shade300,
+      child: Center(
+        child: Text(
+          'Place libre',
+          style: TextStyle(fontSize: 12, color: Colors.grey.shade500),
         ),
       ),
     );

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

@@ -745,7 +745,6 @@ class _AdminAmEditModalState extends State<AdminAmEditModal>
           capacity: capacity,
           onOpen: _openChild,
           onDetach: _detachChild,
-          onAttachEmpty: _capacityFull ? null : _attachChild,
         ),
       ],
     );