57ec28edad
- /admin/logistics page with shadcn Tabs (3 active + 5 disabled "(soon)" placeholder tabs for Visas / Lunch / Documents / Email Templates / Settings). - Sidebar entry "Logistics" between Mentors and Awards (Plane icon). - Confirmations tab: read-only table with status filter pills, browser- local-time deadline display, attendee count, decline reason snippet. - Hotels tab: single-hotel form (name/address/link/notes) with live email-preview card showing what teams will see. - Travel tab: per-attendee flight tracker with arrival/departure datetimes, flight numbers, IATA airports, click-to-toggle status badge, edit Sheet, and unfilled/pending/confirmed filter pills. Smoke-tested end-to-end: navigation, sidebar entry, all three tabs render, hotel save persists to DB and renders in preview card.