feat:hot reload for gin

[dumbprism19]

Pull Request Checklist

Please ensure your pull request meets the following requirements:

• [ ✅] Open your pull request against the master branch.
• [ ✅] All tests pass in available continuous integration systems (e.g., GitHub Actions).
• [ ✅] Tests are added or modified as needed to cover code changes.
• If the pull request introduces a new feature, the feature is documented in the docs/doc.md.

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