Add modern YAML issue template for structured bug reports

[0x4543]

✅ Title (PR title)

Add modern YAML issue template for structured bug reports

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Description

Added a new structured YAML issue template (.github/ISSUE_TEMPLATE/bug_report.yml) to modernize and standardize bug report submissions.
This improves the clarity of reports and aligns the repository with GitHub’s current best practices for issue templates.
The old Markdown version was left untouched for backward compatibility.

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Type of change

• New feature (non-breaking change which adds functionality)

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How has this been tested?

• Verified YAML syntax with GitHub’s issue template previewer
• Checked correct rendering on a forked repository via the “New issue” page
• Ensured no impact on existing .md templates or workflows

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Fixes/Resolves

N/A — enhancement contribution.

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Examples/Screenshots (Optional)

Before	After
Legacy Markdown form	Modern GitHub form with input fields

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Checklist

• I have performed a self-review of my own code
• My changes generate no new warnings
• The repository’s existing functionality is not affected

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Additional Information

This update improves UX for contributors by introducing structured issue reporting using GitHub’s YAML-based templates.

[github-actions]

All contributors have signed the CTA ✍️ ✅
_{Posted by the CLA Assistant Lite bot.}

[0x4543]

This PR introduces a modern YAML issue template alongside the existing Markdown one, aiming to improve issue reporting consistency and contributor experience.

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