add all files

lasuca/api/endpoints/health.php

@@ -0,0 +1,24 @@
+<?php
+// phpcs:ignoreFile
+/**
+ * GET /api/health
+ * 
+ * Health check endpoint for monitoring.
+ */
+
+declare(strict_types=1);
+
+global $conn;
+
+$dbStatus = 'ok';
+
+if (!$conn || $conn->connect_errno) {
+    $dbStatus = 'error';
+}
+
+api_success([
+    'status' => 'ok',
+    'timestamp' => date('c'),
+    'database' => $dbStatus,
+    'version' => '1.0.0',
+]);