fix: lỗi bong bóng Tour vẫn xuất hiện và điểm kết thúc

frontend/src/components/ItineraryTimeline.tsx

@@ -1,6 +1,6 @@
 import React, { useState, useEffect, useMemo } from 'react';
 import { format, differenceInMinutes, parseISO } from 'date-fns';
-import { CheckCircle2, Circle, Clock, MapPin, AlertCircle, Zap, Navigation, Edit2, Trash2, Plus, List, X, Calendar as CalendarIcon, AlignLeft, MessageSquare, FileText } from 'lucide-react';
+import { CheckCircle2, Circle, Clock, MapPin, AlertCircle, Zap, Navigation, Edit2, Trash2, Plus, List, X, Calendar as CalendarIcon, AlignLeft, MessageSquare, FileText, Flag } from 'lucide-react';
 import { useTourStore } from '@/store/useTourStore';
 import { useConfirm } from '@/hooks/useConfirm';
 import { useNotification } from '@/hooks/useNotification';
@@ -45,7 +45,7 @@ export const ItineraryTimeline = ({
   onSuccess,
   isPublicView = false
 }: { 
-  onAddLocation?: (legId: string, isStart?: boolean) => void, 
+  onAddLocation?: (legId: string, isStart?: boolean, isEnd?: boolean) => void, 
   onEditLocation?: (location: any) => void, 
   onQuickNote?: (name: string) => void,
   onSuccess?: () => void,
@@ -322,6 +322,27 @@ export const ItineraryTimeline = ({
                       </div>
                     )}
 
+                    {/* Nút thêm nhanh "Điểm kết thúc" cho Chặng cuối nếu chưa có */}
+                    {legIdx === legs.length - 1 && !legs.some(l => l.locations.some(loc => loc.plannedEnd && new Date(loc.plannedEnd).getTime() === 0)) && (
+                      <div className="relative flex group mb-6 opacity-80 hover:opacity-100 transition-opacity">
+                        <div className="z-10 mt-1.5 mr-4">
+                          <div className="w-8 h-8 bg-white rounded-full border-2 border-dashed border-red-200 flex items-center justify-center text-red-400">
+                            <Flag className="w-4 h-4" />
+                          </div>
+                        </div>
+                        <button 
+                          onClick={() => onAddLocation?.(leg.id, false, true)}
+                          className="flex-1 bg-red-50/20 p-4 rounded-xl border border-dashed border-red-100 hover:border-red-400 hover:bg-red-50 transition-all flex items-center justify-between group"
+                        >
+                          <div className="text-left">
+                            <span className="inline-block px-2 py-0.5 bg-red-50 text-red-600 text-[10px] font-bold rounded-md mb-1 uppercase tracking-wider">Điểm kết thúc</span>
+                            <h3 className="font-bold text-gray-400 text-sm italic">Nhấn để ghim điểm kết thúc cho Tour...</h3>
+                          </div>
+                          <Plus className="w-5 h-5 text-red-500 group-hover:scale-110 transition-transform" />
+                        </button>
+                      </div>
+                    )}
+
                     {leg.locations.map((location, idx) => {
                       // Tìm vị trí của điểm này trong toàn bộ hành trình
                       const globalIdx = allLocations.findIndex(loc => loc.id === location.id);