feat(portal) : allow client to edit own tickets

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

frontend/services/client-tickets.ts

@@ -30,11 +30,17 @@ export function useClientTicketService() {
         })
     }
 
+    async function update(id: number, data: Partial<ClientTicketWrite>): Promise<ClientTicket> {
+        return api.patch<ClientTicket>(`/client_tickets/${id}`, data as Record<string, unknown>, {
+            toastSuccessKey: 'clientTicket.statusUpdated',
+        })
+    }
+
     async function remove(id: number): Promise<void> {
         await api.delete(`/client_tickets/${id}`, {}, {
             toastSuccessKey: 'clientTicket.deleted',
         })
     }
 
-    return { getAll, getById, create, updateStatus, remove }
+    return { getAll, getById, create, update, updateStatus, remove }
 }