- Replace SwiftUI drag-drop with native UITableViewController for fluid reordering
- Add ItineraryTableViewController with native cell reordering and validation
- Add ItineraryTableViewWrapper for SwiftUI integration with header support
- Fix infinite layout loop by tracking header adjustment state
- Map and stats now scroll as table header with itinerary content
- Travel segments constrained to valid day ranges during drag
- One Add button per day (after game > after travel > rest day)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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