Only initialize Gemini Nano if remote_config specifies using Nano

[calren]

No description provided.

[gemini-code-assist]

Summary of Changes

Hello @calren, 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 introduces a conditional check for the initialization of the Gemini Nano data source within both the image and text generation repositories. By integrating a remote configuration flag, the application can dynamically control whether to initialize Gemini Nano, optimizing resource usage and allowing for feature toggling based on remote settings.

Highlights

• Conditional Initialization: The Gemini Nano data source will now only be initialized if the remoteConfigDataSource explicitly indicates that Nano should be used, preventing unnecessary resource allocation and enabling feature toggling.

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[gemini-code-assist]

Code Review

This pull request correctly adds a check to only initialize Gemini Nano when it's enabled via remote config, which is a good performance optimization. My review focuses on a key maintainability improvement: the conditional initialization logic is duplicated across two repositories. I've provided suggestions to centralize this logic to adhere to the DRY (Don't Repeat Yourself) principle. I also noted a minor logging inconsistency.

[riggaroo]

Is there a way we could also check if the device would support Gemini Nano before attempting to do the download too?