fix: lỗi bong bóng Tour vẫn xuất hiện và điểm bắt đầu là điểm xuất phát

frontend/src/pages/TourDetailPage.tsx

@@ -207,6 +207,7 @@ export const TourDetailPage = ({
   const [isAddLocationOpen, setIsAddLocationOpen] = useState(false);
   const [isAddMemberOpen, setIsAddMemberOpen] = useState(false);
   const [isAddPhotoOpen, setIsAddPhotoOpen] = useState(false);
+  const [isStartPointAction, setIsStartPointAction] = useState(false);
   const [targetLegId, setTargetLegId] = useState<string | null>(null);
   const [editingLocation, setEditingLocation] = useState<any>(null);
   const [selectedMember, setSelectedMember] = useState<any>(null);
@@ -1014,14 +1015,16 @@ export const TourDetailPage = ({
               </div>
 
               {viewMode === 'timeline' ? (
-                <ItineraryTimeline onAddLocation={(legId) => {
+                <ItineraryTimeline onAddLocation={(legId, isStart) => {
                   setTargetLegId(legId);
                   setEditingLocation(null);
+                  setIsStartPointAction(!!isStart);
                   setIsAddLocationOpen(true);
                 }} onEditLocation={(loc) => {
                   setEditingLocation(loc);
                   setTargetLegId(loc.legId);
                   setMapCenter([loc.latitude, loc.longitude]);
+                  setIsStartPointAction(false);
                   setIsAddLocationOpen(true);
                 }} 
                 onQuickNote={(locName: string) => handleQuickNote(locName)}
@@ -1505,6 +1508,7 @@ export const TourDetailPage = ({
             onClick={() => {
               setTargetLegId(null); // Reset khi nhấn nút floating tổng quát
               setEditingLocation(null);
+              setIsStartPointAction(false);
               if (activeTab === 'plan') setIsAddLocationOpen(true);
               if (activeTab === 'photo' && canUploadPhoto) setIsAddPhotoOpen(true);
             }}
@@ -1535,6 +1539,7 @@ export const TourDetailPage = ({
           isOpen={isAddLocationOpen} 
           onClose={() => setIsAddLocationOpen(false)} 
           initialLegId={targetLegId || undefined}
+          isStartPoint={isStartPointAction}
           editingLocation={editingLocation}
           tourId={currentTour.id} 
           isPublicView={isPublicView} // Pass isPublicView