feat: implement device auto-registration logic

@@ -159,10 +159,24 @@ $ws_worker->onMessage = function ($connection, $data) use (&$clients, &$devices,
 
             // 验证设备（如果有 deviceService）
             if ($deviceService && $secret) {
+                // Modified: Auto-Register if verification fails (or check existence first)
                 if (!$deviceService->verifyDevice($deviceId, $secret)) {
-                    $connection->send(json_encode(['type' => 'error', 'msg' => 'Invalid device credentials']));
-                    $connection->close();
-                    return;
+                    // Check if it's a NEW device (not in DB)
+                    // We need a way to check existence without secret verification failure masking it
+                    // Let's rely on registerDevice's internal check or check explicitly
+                    
+                    // Ideally verifyDevice returns false if ID not found OR secret wrong.
+                    // We can try to register it. If it succeeds, it was new. If it fails (ID exists), then it was a wrong secret.
+                    
+                    $regResult = $deviceService->registerDevice($deviceId, $secret, "New Device " . substr($deviceId, -4));
+                    if ($regResult['ok']) {
+                        echo "✨ Auto-Registered New Device: $deviceId\n";
+                    } else {
+                        // Registration failed (likely ID exists), so it must be a wrong secret
+                        $connection->send(json_encode(['type' => 'error', 'msg' => 'Invalid device credentials or ID collision']));
+                        $connection->close();
+                        return;
+                    }
                 }
                 // 更新设备状态为在线
                 $deviceService->updateDeviceStatus($deviceId, 'online');