fix: support SHA-256 zero OIDs in pre-push#3721
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tianrking wants to merge 1 commit into
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Summary
Root cause
The pre-push parser only recognized Git's 40-character SHA-1 zero object ID. In SHA-256 repositories, deletion records use a 64-character zero ID, so the hook attempted to diff against an invalid revision instead of skipping the deletion.
Fixes #3664
Validation
python -m pytest tests/commands/hook_impl_test.py -q(45 passed)