9736773475
Add TravelInfo initializers and city normalization helpers to fix repeat city-pair disambiguation. Improve drag-and-drop reordering with segment index tracking and source-row-aware zone calculation. Enhance all five scenario planners with better next-day departure handling and travel segment placement. Add comprehensive tests across all planners. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>