Custom strategies in AgentCore memory not yet supported

[notgitika]

Description

AgentCore memory does not currently support custom strategies. Users should be able to define and use their own memory strategies beyond the built-in options.

Steps to Reproduce

1. Attempt to configure a custom memory strategy in AgentCore
2. Observe that there is no mechanism to define or register custom strategies

Expected Behavior

Users should be able to define custom memory strategies and use them with agentcore add memory.

Actual Behavior

Only built-in strategies are supported. Custom strategies cannot be defined or used.

CLI Version

N/A

Operating System

macOS