Enable per-truck editing of warehouse gate arrival/departure times
(arrivedAt/departedAt) via modal on Import Trucks page. Accessible via
row action menu for EDR-haulage trucks. Includes backend endpoint
POST /last-mile/:id/warehouse-gate-times and frontend modal with
DateTimePicker inputs.
Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>