fix(patch): cherry-pick c7b5dcd to release/v0.17.0-preview.2-pr-13517 to patch version v0.17.0-preview.2 and create version 0.17.0-preview.3

[gemini-cli-robot]

This PR automatically cherry-picks commit c7b5dcd to patch version v0.17.0-preview.2 in the preview release to create version 0.17.0-preview.3.

[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 automates the process of updating a preview release by cherry-picking a specific commit. The primary functional change involves adjusting the default context compression threshold for models, which will cause context compression to trigger earlier than before. This update is reflected across documentation, configuration schemas, and the core service logic.

Highlights

• Automated Cherry-Pick: This pull request is an automated cherry-pick of commit c7b5dcd to patch version v0.17.0-preview.2, leading to the creation of version 0.17.0-preview.3.
• Default Compression Threshold Update: The default value for the model.compressionThreshold setting has been updated from 0.7 to 0.5. This change affects when context compression is triggered for models.

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[gemini-code-assist]

Code Review

This pull request cherry-picks a commit to change the default model.compressionThreshold from 0.7 to 0.5. The change is applied consistently across the configuration schema, core service logic, and documentation. However, this change breaks an existing unit test that relies on the old default value. The test suite must be fixed for this change to be merged safely.

[gemini-code-assist]

Changing DEFAULT_COMPRESSION_TOKEN_THRESHOLD to 0.5 causes a unit test to fail. The test 'should return NOOP if under token threshold and not forced' in chatCompressionService.test.ts is hardcoded with values that assume the threshold is 0.7. With the new value, the test's condition is no longer met, leading to failure. Please update the test to reflect the new default value.

[github-actions]

Size Change: -2 B (0%)

Total Size: 20.6 MB

ℹ️ View Unchanged

Filename	Size	Change
./bundle/gemini.js	20.6 MB	-2 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

_{compressed-size-action}