chore: import upstream snapshot with attribution

2026-07-13 12:39:17 +08:00
commit 4ed4e9ff99
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+# Credit Note Example Repo
+
+This tiny repo exists to support `examples/sandbox/docs/coding_task.py`.
+
+The task is intentionally small so a sandbox coding agent can inspect the repo, apply a minimal patch, and prove the fix with one targeted shell test command.