fix: traiter le deuxième lot de tickets

Refs #1 #2 #3 #13 #17

app/Services/Ids.php

@@ -4,6 +4,29 @@ declare(strict_types=1);
 
 final class Ids
 {
+    public static function validRna(string $value): bool
+    {
+        $value = strtoupper(preg_replace('/\s+/', '', trim($value)) ?? '');
+        return $value === '' || preg_match('/^W[0-9]{9}$/', $value) === 1;
+    }
+
+    public static function validSiret(string $value): bool
+    {
+        $digits = preg_replace('/\D+/', '', trim($value)) ?? '';
+        if ($digits === '') {
+            return true;
+        }
+        if (strlen($digits) !== 14) {
+            return false;
+        }
+        $sum = 0;
+        foreach (str_split($digits) as $index => $digit) {
+            $number = (int) $digit * ($index % 2 === 0 ? 2 : 1);
+            $sum += $number > 9 ? $number - 9 : $number;
+        }
+        return $sum % 10 === 0;
+    }
+
     public static function slugifyUpper(string $s): string
     {
         $s = trim($s);

app/Services/ImageService.php

@@ -6,6 +6,14 @@ final class ImageService
 {
     private const ALLOWED = ['image/jpeg' => 'jpg', 'image/png' => 'png', 'image/webp' => 'webp', 'image/gif' => 'gif'];
 
+    public static function processor(): ?string
+    {
+        if (self::magickBinary() !== null) {
+            return 'ImageMagick';
+        }
+        return extension_loaded('gd') ? 'GD' : null;
+    }
+
     public static function inspect(string $path, int $maxBytes = 20_000_000): array
     {
         if (!is_file($path) || filesize($path) > $maxBytes) {

app/Services/InstallationService.php

@@ -57,17 +57,14 @@ final class InstallationService
                 ? 'Connecteurs externes disponibles'
                 : 'Extension cURL absente : I-CAD et géocodage indisponibles',
         );
+        $imageProcessor = ImageService::processor();
         self::add(
             $checks,
             'image',
-            extension_loaded('imagick') || extension_loaded('gd'),
+            $imageProcessor !== null,
             'recommended',
             'Traitement des images',
-            extension_loaded('imagick')
-                ? 'ImageMagick disponible'
-                : (extension_loaded('gd')
-                    ? 'GD disponible'
-                    : 'ImageMagick ou GD conseillé'),
+            $imageProcessor !== null ? $imageProcessor . ' disponible' : 'ImageMagick ou GD conseillé',
         );
         if ($withFilesystem) {
             foreach (self::directories() as $key => $path) {

app/Services/SystemHealthService.php

@@ -74,7 +74,7 @@ final class SystemHealthService
         );
         $backups = BackupService::list();
         if (!$backups) {
-            $checks[] = self::check('error', 'continuity', t('health.last_backup'), t('health.no_backup'));
+            $checks[] = self::check('warning', 'continuity', t('health.last_backup'), t('health.no_backup'));
         } else {
             $latest = $backups[0];
             $date = DateTimeImmutable::createFromFormat(