chore: import upstream snapshot with attribution

2026-07-13 12:33:07 +08:00
commit 9f2e1cd2af
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+<!-- Write this PR description in English. -->
+
+## What
+
+<!-- One or two sentences: what does this PR change? -->
+
+## Why
+
+<!-- The need this addresses, and who benefits. -->
+
+## User-visible impact
+
+<!-- Default behavior changes? New config? Breaking changes? "None" is a valid answer. -->
+
+---
+
+## Self-review
+
+Please confirm before requesting review. See [CONTRIBUTING.md](../CONTRIBUTING.md) for details.
+
+### 1. Architecture
+
+- [ ] Smallest possible diff for the need
+- [ ] No new configuration knobs (or justified below)
+- [ ] No new dependencies (or justified below)
+- [ ] Fits the existing design / naming / layering
+
+### 2. Need
+
+- [ ] Common need that benefits most users, **or** scope and side effects are explained below
+- [ ] No unintended impact on other users' workflows or defaults
+
+### 3. Code
+
+- [ ] All tests pass
+- [ ] Coverage does not drop; new code has new tests
+- [ ] Commit messages and this PR are written in English
+
+### Bonus
+
+- [ ] This PR was authored using OpenClacky itself
+
+---
+
+## Notes for reviewers
+
+<!-- Anything reviewers should focus on, trade-offs you considered, or follow-ups planned. -->