Rulesets docs don't disclose that bypass_actors is not honored by auto-merge completion

從受影響的兩個 Rulesets 頁面開始：「Creating rulesets for a repository」和「Available rules for rulesets」，尤其是 bypass 清單和提取要求規則區段。檢視回報的 auto-merge 行為，並新增一則清楚的限制說明，涵蓋 bypass_actors 和 auto-merge 完成；當兩個相關頁面都準確說明此行為時，該 issue 即完成。

Page(s) affected

• https://docs.github.com/en/repositories/configuring-branches-and-merges-in-your-repository/managing-rulesets/creating-rulesets-for-a-repository
• https://docs.github.com/en/repositories/configuring-branches-and-merges-in-your-repository/managing-rulesets/available-rules-for-rulesets (bypass list / pull request rule sections)

What's wrong

The Rulesets documentation describes bypass_actors (a Team, Role, GitHub App/Integration, etc. added to a ruleset's bypass list) as being able to bypass a rule such as "Require a pull request before merging" / "Require review from Code Owners". It does not document an important limitation we've confirmed by testing: the bypass grant is only honored by a synchronous, direct merge call — it is not consulted by GitHub's async auto-merge completion process (gh pr merge --auto, enablePullRequestAutoMerge, or the "Merge when ready" UI button).

Repro / evidence

• Ruleset: pull_request rule, require_code_owner_review: true, required_approving_review_count: 1, with a GitHub App added to bypass_actors (Integration type; tested both bypass_mode: "always" and "pull_request").
• A PR approved by the bypass-listed actor with auto-merge enabled (gh pr merge --auto --squash) stayed mergeStateStatus: BLOCKED / reviewDecision: REVIEW_REQUIRED indefinitely — confirmed via a clean 10-minute poll (every 20s, 30/30 polls) with a fresh trigger event and zero manual intervention.
• The same PR, same bypass-eligible actor, merged instantly when calling the merge endpoint directly instead:

  gh api repos/OWNER/REPO/pulls/N/merge -X PUT -f merge_method=squash
  

So the bypass mechanism works, but only for one of the two documented ways to merge a PR, and the docs don't call this out anywhere.

What we'd like to see

A note on the bypass_actors / rules pages clarifying that bypass grants are not currently honored by auto-merge completion, and that automation relying on bypass should call the merge endpoint directly rather than enabling auto-merge, until/unless this is fixed at the platform level.

Related reports (same underlying platform behavior, not a docs-only issue)

• https://github.com/orgs/community/discussions/162623
• https://github.com/orgs/community/discussions/190610
• https://github.com/orgs/community/discussions/113172
• https://github.com/orgs/community/discussions/167357
• https://github.com/orgs/community/discussions/136531
• https://github.com/cli/cli/issues/13388
• https://github.com/cli/cli/issues/13458