Add import tasks and new parsers to XL Vask module

- Introduced `runImportTasks` method for vehicle, user, and usage log imports.
- Added new product parsers: `ht_b_rstel_s`, `ht_turbo`, and `ikke_b_rster_p_kabinen`.
- Implemented simulation and duplicate detection for usage logs via order objects.
- Updated usage log handling to include default customer checks and user association.
- Enhanced request handling with fast-link functionality for usage orders.

services/nginx/app/classes/db.php

@@ -4,6 +4,7 @@ namespace classes;
 
 use Exception;
 use mysqli;
+use objects\orders_o;
 
 class db
 {
@@ -141,5 +142,21 @@ class db
         return $this->fetch_all($result);
     }
 
+    /**
+     * Generate a fake ID for a table.
+     * Fake ids are not stored in the database, they are generated on every request starting from -1.
+     * This is useful for testing purposes.
+     * @see orders_o::simulateOrderFromXLVask()
+     * @param string $table
+     * @return int
+     */
+    public function getNextFakeId(string $table): int
+    {
+        // This is a static variable that will be shared across all instances of the class
+        static $fakeId = 0; // Start from 0 and decrement on each call
+        $fakeId--;
+        return $fakeId;
+    }
+
 
 }