fix: 移除 main 误携 holdout gitlink（CI checkout 全红根因，#438 同款）

[randypanding]

Card: #425
ADR: ADR-0085（T8/T9 收口链路依赖 CI 可跑——checkout 修复是收口前置）

缺陷

15ac9c1（owner 侧会话直推"一人公司治理体系诊断与落地"）携带工作区 holdout/ gitlink →
fatal: No url found for submodule path 'holdout' in .gitmodules → CI checkout 全红
（gate/hygiene/adversary 连坐；PR #466 与红队审计均被阻断）。

修复

git rm --cached holdout（#438 同款先例）。纯 gitlink 移除，零语义变更。

合并后动作

重跑 PR #466 红队审计（adversary target=specs/IR-0006）→ acceptance 合并 → IR-0006 T9 收口。

Summary by CodeRabbit

• 变更
  • 移除了不再使用的 holdout 模块及相关引用。

[Copilot]

Copilot was unable to review this pull request because the user who requested the review has reached their quota limit.

[qodo-code-review]

PR Summary by Qodo

Remove stray holdout gitlink to restore CI checkout

🐞 Bug fix 🕐 Less than 5 minutes

AI Description

• Removes the unconfigured holdout gitlink that caused every CI checkout to fail.
• Restores gate, hygiene, and adversary workflows without changing repository behavior.

High-Level Assessment

Removing the accidental gitlink from the index is the correct minimal fix because holdout is not an intended submodule and is already ignored locally. Adding .gitmodules configuration would incorrectly formalize an unintended repository dependency.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro Plus

Run ID: 9c82c6eb-f606-4e90-baed-16994115bdeb

📥 Commits

Reviewing files that changed from the base of the PR and between 15ac9c1 and 57ad65a.

📒 Files selected for processing (1)

• holdout

💤 Files with no reviewable changes (1)

• holdout

Included review availability: Your plan provides up to 10 included reviews per hour; 7 remain after this review.

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📝 Walkthrough

Walkthrough

移除了 holdout 子模块及其指向提交 40d2db2cad0039e6a0a313fefa454249bef221a2 的引用。

Changes

Cohort / File(s)	Summary
holdout 子模块 holdout	删除 holdout 子模块引用。

Suggested labels: bug

Merge Risk: ⚪ Minimal · up to 57ad6

This change removes the unintended holdout gitlink without changing product behavior, so no actionable merge-blocking risk remains beyond normal checks.

🚥 Pre-merge checks | ✅ 1 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Title check	⚠️ Warning	标题使用了有效的 Conventional Commits 前缀 fix，且准确描述了移除 holdout gitlink 的主要变更。但标题长度为 57 个字符，超过 50 个字符限制。	将标题缩短至不超过 50 个字符，同时保留 fix: 前缀和主要变更信息，例如：fix: 移除误提交的 holdout gitlink。

✅ Passed checks (1 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.

• Fix all pre-merge checks with AI

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch fix-holdout-gitlink

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_{Comment @coderabbitai help to get the list of available commands.}

[qodo-code-review]

Code Review by Qodo

🐞 Bugs (0) 📘 Rule violations (0) 📎 Requirement gaps (0)

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