Add missing user_id parameter to get_or_create_working_memory calls

The API requires user_id parameter. Added it to all get_or_create_working_memory
calls in 01_working_memory_with_extraction_strategies.ipynb

Author: abrookins

python-recipes/context-engineering/notebooks/section-3-memory/01_working_memory_with_extraction_strategies.ipynb

@@ -240,6 +240,7 @@
         "_, working_memory = await memory_client.get_or_create_working_memory(\n",
         "    session_id=session_id,\n",
         "    model_name=\"gpt-4o\"\n",
+        "    user_id=student_id,\n",
         ")\n",
         "\n",
         "if working_memory:\n",