Add minute-based billing and lane management extensions to self-serve module

- Introduced `selfserve_lane_command_arguments` class for managing lane command parameters (e.g., customer number, license plate).
- Added traits for handling lane timer, invoice generation, license plate, and customer number management.
- Implemented minute-based billing logic with `selfserve_minute_product_c` configuration.
- Enhanced `selfserve_lane` with new behaviors: command arguments, invoicing, and time handling.
- Added `/modules/self-serve/lane/command` route for executing lane commands (START, STOP, RESET).
- Updated `/modules/self-serve/lane/status` route to include additional lane details (wash start, elapsed time, license plate, etc.).
- Improved Shelly device relay control for port management.

services/nginx/app/traits/route_t.php

@@ -249,6 +249,16 @@ trait route_t
         return self::hasPermission('department_access_' . $department . ($permission ? '_' . $permission : ''));
     }
 
+    /**
+     * Get parameters as an array from the request
+     * @return array
+     */
+    public function getParametersAsArray(): array
+    {
+        global $response;
+        return $response->getAllRequestParameters();
+    }
+
     /**
      * Require permission
      * @param string $permission