feat: Bandeau générique, dashboards et doc (squash develop, Closes #100)
- Bandeau générique (DashboardBandeau) pour Parent, Admin, Gestionnaire, AM
- ParentDashboardScreen, AdminDashboardScreen, GestionnaireDashboardScreen, AM dashboard
- AppFooter responsive, scripts Gitea (create/list issues parent API)
- Doc: ticket #101 Inscription Parent API, mise à jour 23_LISTE-TICKETS
- User.fromJson robustesse (nullable id/email/role)
- Suppression dashboard_app_bar.dart au profit de dashboard_bandeau.dart
Refs: #100, #101
Made-with: Cursor
Julien Martin
e713c05da1