feat: initial impl w/ styles, scripts, & server-side logic (steps 1, 2, 3)

assessment/customs/clientb/modules/cars/ajax.php

@@ -1 +1,24 @@
-<h1>Voitures Client B</h1>
+<?php
+require_once __DIR__ . '/../../../../src/utils.php';
+$cars = DataManager::getCars('clientb');
+?>
+<h1>Voitures Client B</h1>
+<?php if (empty($cars)): ?>
+	<p>Aucune voiture trouvée.</p>
+<?php else: ?>
+	<ul>
+		<?php foreach ($cars as $car): ?>
+			<?php
+				$model = isset($car['modelName']) ? strtolower($car['modelName']) : '-';
+				$brand = $car['brand'] ?? '-';
+				$garage = DataManager::getGarageById($car['garageId'] ?? null);
+				$garageTitle = $garage['title'] ?? '-';
+			?>
+			<li class="car-item" data-car-id="<?php echo htmlspecialchars($car['id'] ?? ''); ?>">
+				<strong><?php echo htmlspecialchars($model); ?></strong>
+				- <?php echo htmlspecialchars($brand); ?>
+				- Garage: <?php echo htmlspecialchars($garageTitle); ?>
+			</li>
+		<?php endforeach; ?>
+	</ul>
+<?php endif; ?>