Release v1.0.3

[github-actions]

🚀 Release v1.0.3

This PR was automatically created by the release workflow.

⚠️ Pre-merge Checklist

• Review CHANGELOG.md - ensure it has meaningful release notes
• Verify version numbers are correct in all files
• All CI checks are passing

📝 How to improve changelog

If the auto-generated changelog isn't good enough:

1. Edit CHANGELOG.md in this PR
2. Commit the changes
3. Then approve and merge

🔄 Release Process

After merging this PR:

1. Package will be built and tested
2. Manual approval required before publishing to PyPI
3. GitHub release and tag created after PyPI publication

🚨 Running from: refs/heads/main

✅ Running from main branch

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Triggered by @siwachabhi