fix(transform): add claude-opus-4.7 to isAnthropicAdaptive list

[kiote]

Issue for this PR

Fixes #23500

Type of change

• Bug fix
• New feature
• Refactor / code improvement
• Documentation

What does this PR do?

claude-opus-4.7 uses the adaptive thinking API (thinking.type=adaptive + output_config.effort), the same as claude-opus-4.6. However, it was missing from the isAnthropicAdaptive check in transform.ts:

const isAnthropicAdaptive = ["opus-4-6", "opus-4.6", "sonnet-4-6", "sonnet-4.6"].some((v) =>
  model.api.id.includes(v),
)

Without being in this list, claude-opus-4.7 falls through to the legacy thinking.type=enabled path. GitHub Copilot explicitly rejects this with:

"thinking.type.enabled" is not supported for this model. Use "thinking.type.adaptive" and "output_config.effort" to control thinking behavior.

The fix adds "opus-4-7" and "opus-4.7" to the array, matching the same pattern already used for opus-4.6.

How did you verify your code works?

Added a test case for claude-opus-4.7 mirroring the existing claude-opus-4.6 test. Both pass:

bun test test/provider/transform.test.ts --test-name-pattern "opus"
2 pass, 0 fail

Screenshots / recordings

N/A — not a UI change.

Checklist

• I have tested my changes locally
• I have not included unrelated changes in this PR

[github-actions]

Thanks for your contribution!

This PR doesn't have a linked issue. All PRs must reference an existing issue.

Please:

1. Open an issue describing the bug/feature (if one doesn't exist)
2. Add Fixes #<number> or Closes #<number> to this PR description

See CONTRIBUTING.md for details.

[github-actions]

The following comment was made by an LLM, it may be inaccurate:

Based on my search, I found one potentially related PR:

Related PR:

• fix: set display 'summarized' for Opus 4.7 on Bedrock #23331 - fix: set display 'summarized' for Opus 4.7 on Bedrock

Why it's related: This PR also addresses Opus 4.7 support, though it's specific to the Bedrock provider. Your PR (#23499) is fixing the adaptive thinking API support in the transform layer, which is complementary work to ensure full Opus 4.7 compatibility across different aspects of the system.

Note: PR #23499 (the current PR) appears in the search results because it's the PR being analyzed. The other thinking-related PRs found are about different functionality (thinking block signatures, etc.) and don't appear to be duplicates.

[github-actions]

Thanks for updating your PR! It now meets our contributing guidelines. 👍

[kiote]

The CI / checks-node-extensions and CI / checks-node-extensions-shard-6 checks are failing. Our change only modifies a string array in transform.ts and adds one test — could a maintainer confirm whether these failures are pre-existing / unrelated to this PR?

[kiote]

Closing as superseded — dev already includes opus-4.7 support with a more comprehensive implementation. The merge conflict confirms this.