Add unit tests for Redis namespace safety, MotorAPI cache functionality, and configuration classes, alongside implementation of xlvask_automation_service

- Added tests to ensure Redis namespace safety for `db_object_t` and `users_o`.
- Implemented `MotorApiCachedResultTest` to validate metadata caching behavior.
- Introduced configuration classes for `xlvask_automatic_order_attachment_enabled` and `xlvask_automatic_order_creation_enabled`.
- Developed `xlvask_automation_service` with supporting features for usage log evaluation, suggestion building, and order automation.

services/nginx/app/classes/motorapi.php

@@ -155,7 +155,7 @@ class motorapi implements motorapi_i
         // Get the cached result from the log/local database/cache
         $motorapi_lookups = new motorapi_lookups_o();
         // Add the cached value to the meta
-        $response->add_meta('cached', true);
+        self::addCachedMetaIfPossible($response);
         $cleaned_result = self::cleanJSON($motorapi_lookups->getCachedResult($licensePlate)->result->value());
         $object = json_decode($cleaned_result);
         if ($object === null) {
@@ -165,6 +165,13 @@ class motorapi implements motorapi_i
         return json_decode($cleaned_result);
     }
 
+    public static function addCachedMetaIfPossible(mixed $response): void
+    {
+        if (is_object($response) && method_exists($response, 'add_meta')) {
+            $response->add_meta('cached', true);
+        }
+    }
+
     /**
      * @inheritDoc
      * @throws Exception If the module is not enabled, the license plate is invalid, the daily limit is exceeded, or the secret key is invalid
@@ -385,4 +392,4 @@ class motorapi implements motorapi_i
         $motorapi_lookups = new motorapi_lookups_o();
         $motorapi_lookups->add($licensePlate, json_encode($response), $endpoint);
     }
-}
+}