VSN-2251:Feature: wire establishment trip details and driver vehicle info

Objective

Connect the establishment Suivi des courses page to the new backend details flow while preserving the current UI shell and table structure.

Implemented

• wired the establishment today-courses endpoint for the list
• wired the new establishment trip details endpoint for the selected course
• preserved the existing table columns and page layout
• hydrated Détails du trajet with backend data:
  • departure time
  • estimated arrival time
  • estimated duration
  • status
  • pickup
  • dropoff
• hydrated Informations sur le chauffeur et le véhicule with backend data:
  • driver full name
  • contact
  • optional photo
  • vehicle label
  • license plate
• kept compatibility with the existing UI models used by the page
• kept the establishment status override behavior on the frontend side