docs(codex): the example contradicted the paragraph under it

[lidge-jun]

What

PR #1022 made fast_mode opt-in: unset now leaves the user's config alone and creates no [features] table. The guide says so — and two lines above it, the config example still shows that table unconditionally.

A reader following the example expects output they will not get.

Change

One comment line above the block in each of the five locales, marking it conditional. No prose changes, no behavior claims altered.

# only when fastMode is set; unset adds no [features] table
[features]
fast_mode = true

Follow-up to #1022, found while verifying that PR against current dev.

Summary by CodeRabbit

• Documentation
  • Clarified in Codex integration guides that the [features] table and fast_mode setting are added only when fastMode is configured.
  • Documented that no [features] table is created when fastMode remains unset.
  • Updated the guidance across English, Japanese, Korean, Russian, and Simplified Chinese documentation.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

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Run ID: 1547f443-2170-4cd4-ab0a-8551e5507c27

📥 Commits

Reviewing files that changed from the base of the PR and between 4685876 and 72345db.

📒 Files selected for processing (5)

• docs-site/src/content/docs/guides/codex-integration.md
• docs-site/src/content/docs/ja/guides/codex-integration.md
• docs-site/src/content/docs/ko/guides/codex-integration.md
• docs-site/src/content/docs/ru/guides/codex-integration.md
• docs-site/src/content/docs/zh-cn/guides/codex-integration.md

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📝 Walkthrough

Walkthrough

The Codex integration guides now state that [features] and fast_mode are injected only when fastMode is configured. The English, Japanese, Korean, Russian, and Simplified Chinese guides contain the clarification.

Changes

Codex integration documentation

Layer / File(s)	Summary
Document conditional configuration injection docs-site/src/content/docs/*/guides/codex-integration.md	Added localized explanations that configured fastMode injects [features] and fast_mode, while an unset value does not create the table.

Estimated code review effort: 1 (Trivial) | ~2 minutes

Possibly related PRs

• lidge-jun/opencodex#1022: Documents the same fastMode and [features] injection behavior.

Suggested reviewers: ingwannu, wibias

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly describes the documentation fix: updating Codex examples that contradicted the paragraph below them.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch codex/fastmode-docs-contradiction

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