Add MemMachine memory tool integration

[gauri-nagavkar-memverge]

Description

Adds a memmachine_memory tool that integrates MemMachine as a memory backend for Strands agents, providing persistent episodic and semantic memory via the MemMachine Platform REST API.

Related Issues

Closes #396

Documentation PR

#TODO

Type of Change

New Tool

Testing

How have you tested the change? Verify that the changes do not break functionality or introduce warnings in consuming repositories: agents-docs, agents-tools, agents-cli

• I ran hatch run prepare

Checklist

• I have read the CONTRIBUTING document
• I have added any necessary tests that prove my fix is effective or my feature works
• I have updated the documentation accordingly
• I have added an appropriate example to the documentation to outline the feature
• My changes generate no new warnings
• Any dependent changes have been merged and published

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[mkmeral]

Due to scalability concerns, we're directing new tools to standalone community packages now.

Would be great to see this as a standalone package. You can use our extension template to get started and get featured in our docs. Check out the links below:

• Extension template: https://github.com/strands-agents/extension-template-python
• Get featured in docs: https://strandsagents.com/docs/community/get-featured/