chore(genai): Update live-structured-ouput-with-txt.js to gimini-2.5-flash

[angelcaamal]

Description

Fixes #

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Checklist

• I have followed guidelines from CONTRIBUTING.MD and Samples Style Guide
• Tests pass: npm test (see Testing)
• Lint pass: npm run lint (see Style)
• Required CI tests pass (see CI testing)
• These samples need a new API enabled in testing projects to pass (let us know which ones)
• These samples need a new/updated env vars in testing projects set to pass (let us know which ones)
• This pull request is from a branch created directly off of GoogleCloudPlatform/nodejs-docs-samples. Not a fork.
• This sample adds a new sample directory, and I updated the CODEOWNERS file with the codeowners for this sample
• This sample adds a new sample directory, and I created GitHub Actions workflow for this sample
• This sample adds a new Product API, and I updated the Blunderbuss issue/PR auto-assigner with the codeowners for this sample
• Please merge this PR for me once it is approved

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[gemini-code-assist]

Summary of Changes

Hello @angelcaamal, 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 updates the generative AI model used in a JavaScript sample to a newer version, ensuring the sample leverages the latest capabilities and improvements of the Gemini Flash model for structured output generation.

Highlights

• Model Update: The generative AI model used in live-structured-ouput-with-txt.js was updated from google/gemini-2.0-flash-001 to google/gemini-2.5-flash.

Changelog

• genai/live/live-structured-ouput-with-txt.js
  • Updated the model parameter within the openAI.chat.completions.create call from google/gemini-2.0-flash-001 to google/gemini-2.5-flash.

Activity

• The author has confirmed adherence to CONTRIBUTING.MD and Samples Style Guide guidelines.
• Tests have passed.
• Linting has passed.
• The author has requested the PR to be merged once approved.

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[gemini-code-assist]

Code Review

This pull request successfully updates the model used in live-structured-ouput-with-txt.js from google/gemini-2.0-flash-001 to google/gemini-2.5-flash. The change is straightforward and aligns with the pull request's objective. A minor maintainability improvement could be considered for the model name.

[gemini-code-assist]

The model name google/gemini-2.5-flash is currently a string literal. While this is a small change, it's generally good practice to define such configuration values as constants, especially if they might be reused or updated frequently. This improves maintainability and reduces the risk of typos if the value needs to be changed in the future.