No-op: preserve-branch-name already configured for autoloop create-pull-request

[Copilot]

Issue requests setting preserve-branch-name: true on the create-pull-request safe output so the autoloop branch stays a single long-running branch instead of getting a random hash suffix.

This is already in place on main — no changes required.

• .github/workflows/autoloop.md (line 48): preserve-branch-name: true is set under safe-outputs.create-pull-request.
• .github/workflows/autoloop.lock.yml: compiled GH_AW_SAFE_OUTPUTS_HANDLER_CONFIG contains "preserve_branch_name":true.
• No other create-pull-request safe-output definitions exist in the repo.

safe-outputs:
  create-pull-request:
    draft: true
    title-prefix: "[Autoloop] "
    labels: [automation, autoloop]
    protected-files: fallback-to-issue
    preserve-branch-name: true   # already present
    max: 1

Recommend closing this PR and the issue as already-resolved.