Reintroduce TFE duration metadata: DB columns, form fields, controllers, views, and migration

Add 'unsafe-eval' to CSP script-src directives (htmx requires Function())

app/templates/partials/form/form.php

@@ -102,6 +102,10 @@ $existingWebsiteUrl      = $existingWebsiteUrl  ?? '';
 $existingWebsiteLabel    = $existingWebsiteLabel ?? '';
 $checkedFormatsForSiteWeb = $checkedFormatsForSiteWeb ?? [];
 
+// Duration (value + unit)
+$durationValue  = $durationValue ?? null;
+$durationUnit   = $durationUnit ?? 'pages';
+
 // WCAG 3.3.1: which field has a validation error (set by caller from App::consumeAutofocus())
 $errorFieldName = $errorFieldName ?? null;
 ?>
@@ -413,8 +417,38 @@ if ($filesMode === 'add'): ?>
 
 <?php endif; ?>
 
-        <!-- ═══════════════════ Métadonnées complémentaires ═══════════════════
-        (Durée/Nombre de pages supprimés — redondants avec les fichiers attachés) -->
+        <!-- ═══════════════════ Durée ═══════════════════ -->
+        <fieldset>
+            <legend>Durée</legend>
+            <div class="admin-form-group admin-form-group--inline">
+                <div>
+                    <label for="duration_unit">Unité :</label>
+                    <select id="duration_unit" name="duration_unit">
+                        <?php
+                        $_currentUnit = $durationUnit ?? ($formData['duration_unit'] ?? 'pages');
+                        $_units = [
+                            'pages'   => 'pages',
+                            'minutes' => 'minutes',
+                            'sec'     => 'secondes',
+                            'heures'  => 'heures',
+                            'mo'      => 'Mo',
+                        ];
+                        foreach ($_units as $_val => $_label): ?>
+                        <option value="<?= $_val ?>" <?= $_currentUnit === $_val ? 'selected' : '' ?>><?= htmlspecialchars($_label) ?></option>
+                        <?php endforeach; unset($_units, $_currentUnit, $_val, $_label); ?>
+                    </select>
+                </div>
+                <div>
+                    <label for="duration_value">Valeur :</label>
+                    <input type="number" id="duration_value" name="duration_value"
+                           value="<?= htmlspecialchars((string)($durationValue ?? ($formData['duration_value'] ?? ''))) ?>"
+                           step="0.1" min="0" placeholder="0"
+                           style="width: 8ch;">
+                </div>
+            </div>
+            <small>Optionnel. Exemples : 88 pages, 32 minutes, 1.5 heures, 120 Mo.</small>
+            </div>
+        </fieldset>
 
         <!-- ═══════════════════ Degrés d'ouverture et licences ═══════════════════ -->
         <?php
@@ -552,6 +586,16 @@ if ($filesMode === 'add'): ?>
 <?php endif; ?>
 
         <?php if ($showAutosaveStatus): ?>
+        <!-- Hidden autosave element: polls the form every 3s and POSTs to draft.php.
+             Uses hx-include to serialize the entire form. hx-swap="none" so response
+             doesn't alter the DOM. -->
+        <div hx-post="<?= htmlspecialchars($autosaveUrl ?? '') ?>"
+             hx-trigger="every 3s"
+             hx-include="closest form"
+             hx-swap="none"
+             hx-on::after-request="handleAutosaveResponse(event)"
+             data-autosave-probe
+             aria-hidden="true" style="display:none"></div>
         <div class="autosave-status" data-autosave-status></div>
         <?php endif; ?>