Fix MemoryAPIClient initialization to use MemoryClientConfig

The agent-memory-client API requires a MemoryClientConfig object,
not direct keyword arguments. Updated memory_client.py to:
- Import MemoryClientConfig
- Create config object with base_url and default_namespace
- Pass config to MemoryAPIClient constructor

This fixes the TypeError: MemoryAPIClient.__init__() got an
unexpected keyword argument 'base_url'

Author: abrookins

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

@@ -10,7 +10,7 @@
 from typing import List, Dict, Any, Optional
 from datetime import datetime
 
-from agent_memory_client import MemoryAPIClient
+from agent_memory_client import MemoryAPIClient, MemoryClientConfig
 from agent_memory_client.models import (
     MemoryRecord,
     MemoryMessage,
@@ -43,12 +43,14 @@ def __init__(
         """
         self.user_id = user_id
         self.namespace = namespace
-        
+
         # Get base URL from environment or use default
         if base_url is None:
             base_url = os.getenv("AGENT_MEMORY_URL", "http://localhost:8000")
-        
-        self.client = MemoryAPIClient(base_url=base_url)
+
+        # Create config and client
+        config = MemoryClientConfig(base_url=base_url, default_namespace=namespace)
+        self.client = MemoryAPIClient(config=config)
 
     # ==================== Working Memory ====================