refactor: combined duration (pages + minutes), has_annexes checkbox, remove Mo

- Remove Mo option from duration, keep only pages and minutes
- Redesign duration fieldset: separate Pages input + Durée h:m inputs, both can be set together
- Fix minutes input visibility: wider inputs (6ch), proper CSS layout
- Add has_annexes checkbox to fichiers fragment + DB column + controllers
- Display duration on admin backoffice recap page
- Display duration on public partage recap page
- Update public TFE page for new combined duration format
- Migration 041: add duration_pages, duration_minutes, has_annexes columns; migrate data; recreate views

app/src/Form/FormBootstrap.php

@@ -203,8 +203,7 @@ class FormBootstrap
             'contactPublic'           => null,
             'currentContextNote'      => null,
             'currentContactVisible'   => null,
-            'currentDurationValue'    => null,
-            'currentDurationUnit'     => 'pages',
+
 
             // Files (edit mode)
             'currentCover'           => null,