fix(patch): cherry-pick 3f5f030 to release/v0.21.0-preview.0-pr-14843 to patch version v0.21.0-preview.0 and create version 0.21.0-preview.1

[gemini-cli-robot]

This PR automatically cherry-picks commit 3f5f030 to patch version v0.21.0-preview.0 in the preview release to create version 0.21.0-preview.1.

[gemini-code-assist]

Summary of Changes

Hello @gemini-cli-robot, 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, an automated cherry-pick, introduces enhanced flexibility for the IdeClient's authentication mechanism. It enables the client to retrieve an authentication token from a dedicated environment variable, GEMINI_CLI_IDE_AUTH_TOKEN, serving as a fallback or alternative to tokens specified in configuration files. This change is accompanied by a new test to validate the functionality.

Highlights

• Environment Variable Authentication: The IdeClient now supports reading the authentication token from the GEMINI_CLI_IDE_AUTH_TOKEN environment variable, providing an alternative or fallback to configuration file-based authentication.
• Test Coverage: A new test case has been added to ide-client.test.ts to ensure the client correctly connects using an environment variable-provided authentication token when a configuration file is absent.

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[gemini-code-assist]

Code Review

This pull request cherry-picks a commit to add support for providing the IDE authentication token via the GEMINI_CLI_IDE_AUTH_TOKEN environment variable. This new method serves as a fallback to the token specified in the connection configuration file. The implementation correctly prioritizes the token from the configuration file. The changes also include a new test case to verify this functionality, ensuring the Authorization header is correctly set when the token is provided through the environment variable. The changes are correct and well-tested, and I have no high or critical severity concerns.

[github-actions]

Size Change: -17 B (0%)

Total Size: 21.6 MB

ℹ️ View Unchanged

Filename	Size	Change
./bundle/gemini.js	21.5 MB	-17 B (0%)
./bundle/sandbox-macos-permissive-closed.sb	1.03 kB	0 B
./bundle/sandbox-macos-permissive-open.sb	890 B	0 B
./bundle/sandbox-macos-permissive-proxied.sb	1.31 kB	0 B
./bundle/sandbox-macos-restrictive-closed.sb	3.29 kB	0 B
./bundle/sandbox-macos-restrictive-open.sb	3.36 kB	0 B
./bundle/sandbox-macos-restrictive-proxied.sb	3.56 kB	0 B

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