hydrojudge: fix cac ESM compat on Node 22

[Lyricus233]

Summary by CodeRabbit

• Bug Fixes
  • Improved CLI tool compatibility to ensure reliable functionality across different dependency configurations.

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ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

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Run ID: 0e9772f0-3df8-4f38-929d-8da761cda327

📥 Commits

Reviewing files that changed from the base of the PR and between 3203656 and 05951be.

📒 Files selected for processing (1)

• packages/hydrojudge/bin/hydrojudge.js

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Walkthrough

The change modifies the CLI argument parsing initialization in the hydrojudge entry point to add compatibility handling for the cac module import. The code now attempts to access the default export of the module first and falls back to the original require pattern if unavailable, while preserving all downstream command routing functionality.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and specifically describes the main change: fixing cac ESM compatibility on Node 22 in the hydrojudge package.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[github-actions]

All contributors have signed the CLA ✍️ ✅
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[Lyricus233]

I have read the CLA Document and I hereby sign the CLA