Fix MemoryRecord creation to include required id field

The agent-memory-client MemoryRecord model requires an id field.
Added uuid generation for memory IDs and removed metadata parameter
which isn't a direct field on MemoryRecord.

Author: abrookins

python-recipes/context-engineering/reference-agent/redis_context_course/memory_client.py

@@ -7,6 +7,7 @@
 """
 
 import os
+import uuid
 from typing import List, Dict, Any, Optional
 from datetime import datetime
 
@@ -208,13 +209,13 @@ async def create_memory(
             List of created MemoryRecord objects
         """
         memory = MemoryRecord(
+            id=str(uuid.uuid4()),
             text=text,
             user_id=self.user_id,
             namespace=self.namespace,
             memory_type=memory_type,
             topics=topics or [],
             entities=entities or [],
-            metadata=metadata or {},
             event_date=event_date
         )