feat: add team members functionality and modal

- Introduced `onViewMembers` prop in `TreeItemRow` to handle viewing team members.
- Added `TeamMembersModal` to display members of a selected team.
- Implemented state management for team members in `TeamsManagement`, including fetching and updating stats.
- Enhanced `AdminManagementService` with methods to fetch and remove team members.

components/admin/management/tree-item-row.tsx

@@ -2,7 +2,7 @@
 
 import { Button } from "@/components/ui/button";
 import { Badge } from "@/components/ui/badge";
-import { Edit, Trash2 } from "lucide-react";
+import { Edit, Trash2, Users } from "lucide-react";
 
 interface TreeItemRowProps {
   icon?: React.ReactNode;
@@ -15,9 +15,11 @@ interface TreeItemRowProps {
   }>;
   onEdit?: () => void;
   onDelete?: () => void;
+  onViewMembers?: () => void;
   canDelete?: boolean;
   showSeparator?: boolean;
   additionalInfo?: React.ReactNode;
+  hasMembers?: boolean;
 }
 
 export function TreeItemRow({
@@ -27,9 +29,11 @@ export function TreeItemRow({
   badges = [],
   onEdit,
   onDelete,
+  onViewMembers,
   canDelete = true,
   showSeparator = false,
   additionalInfo,
+  hasMembers = false,
 }: TreeItemRowProps) {
   return (
     <div>
@@ -67,6 +71,17 @@ export function TreeItemRow({
 
         {/* Actions */}
         <div className="flex items-center gap-1 shrink-0">
+          {onViewMembers && hasMembers && (
+            <Button
+              variant="ghost"
+              size="sm"
+              onClick={onViewMembers}
+              className="text-green-400 hover:text-green-300 hover:bg-green-500/20 h-6 w-6 p-0"
+              title="Voir les membres"
+            >
+              <Users className="w-3 h-3" />
+            </Button>
+          )}
           {onEdit && (
             <Button
               variant="ghost"