feat: add customizable memory_service extension for get_fast_api_app

[stonyme]

feat: add customizable memory_service extension for get_fast_api_app

• Introduce memory_service parameter to get_fast_api_app function
• Allows injection of custom implementations for stateful memory storage
• Enables greater flexibility for session management and caching strategies

[gemini-code-assist]

Summary of Changes

Hello @stonyme, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request enhances the get_fast_api_app function by introducing a new parameter that allows developers to directly inject a custom memory service implementation. This change significantly improves the flexibility of the application's stateful memory management, enabling more tailored session and caching strategies without relying solely on URI-based configurations.

Highlights

• New Parameter: Introduced a memory_service parameter to the get_fast_api_app function.
• Custom Implementations: This new parameter allows for the injection of custom implementations for stateful memory storage.
• Enhanced Flexibility: The change provides greater flexibility for session management and caching strategies by enabling direct service injection.

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[adk-bot]

Response from ADK Triaging Agent

Hello @stonyme, thank you for creating this PR!

To help reviewers evaluate your contribution, could you please associate a GitHub issue with this PR? If one doesn't exist, please create one that describes the feature you're adding.

Also, could you add a testing plan section to your PR description to detail how you've tested these changes?

This information will help reviewers to review your PR more efficiently. Thanks!

[gemini-code-assist]

Code Review

This pull request introduces a memory_service parameter to get_fast_api_app, allowing for dependency injection of a memory service. This is a good change for flexibility and testability. My main feedback is to use a more specific type hint for the new parameter instead of Any. I also noticed that there are no new tests to cover the case where a custom memory_service is passed to get_fast_api_app. It would be beneficial to add a test case for this new functionality to ensure it works as expected.