[Feat] Adding support for gemini-3-pro-image model to generate 4K photos

[bentcc]

Pre-submission checklist

• I have searched existing issues and feature requests for duplicates
• I have read the README

Feature description

Would you consider adding support for gemini-3-pro-image as Antigravity model as it could generate 4K images?

Use case

NA

Proposed implementation

No response

Alternatives considered

No response

Compliance

• This feature is for personal development use
• This feature does not violate or circumvent Google's Terms of Service

Additional context

No response

[github-actions]

👋 Thanks for opening this issue!

gemini-3-pro-image is not currently a documented/supported model in this plugin. Use a README-listed model name (for example antigravity-gemini-3-pro or gemini-3-pro-preview) to avoid model not found. Keeping this as an enhancement request for future image-model support when a stable Antigravity model ID is available.

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