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/templates/admin/recapitulatif.php

@@ -131,6 +131,25 @@
                 <dt>Mots-clés</dt><dd><?= htmlspecialchars($thesis['keywords']) ?></dd>
                 <?php endif; ?>
 
+                <?php
+                $_hasPages = isset($thesis['duration_pages']) && $thesis['duration_pages'] !== null;
+                $_hasMins  = isset($thesis['duration_minutes']) && $thesis['duration_minutes'] !== null;
+                if ($_hasPages || $_hasMins):
+                    $_parts = [];
+                    if ($_hasPages) $_parts[] = $thesis['duration_pages'] . ' pages';
+                    if ($_hasMins) {
+                        $_h = (int)floor($thesis['duration_minutes'] / 60);
+                        $_m = $thesis['duration_minutes'] % 60;
+                        $_parts[] = $_h . 'h' . str_pad((string)$_m, 2, '0', STR_PAD_LEFT);
+                    }
+                ?>
+                <dt>Durée</dt><dd><?= htmlspecialchars(implode(', ', $_parts)) ?></dd>
+                <?php endif; ?>
+
+                <?php if (!empty($thesis['has_annexes'])): ?>
+                <dt>Annexes</dt><dd>Oui</dd>
+                <?php endif; ?>
+
                 <?php if ($thesis['baiu_link']): ?>
                 <dt>Lien BAIU</dt><dd><a href="<?= htmlspecialchars($thesis['baiu_link']) ?>" target="_blank" rel="noopener"><?= htmlspecialchars($thesis['baiu_link']) ?></a></dd>
                 <?php endif; ?>