Migrate issue templates to YAML issue forms

[sfaxluke]

Description

Replace legacy Markdown issue templates with GitHub Issue Forms. Removed bug_report.md, feature_request.md, and question.md and added corresponding YAML forms (bug_report.yml, feature_request.yml, question.yml) under .github/ISSUE_TEMPLATE. The new forms provide structured fields, validations, and metadata (labels and title prefixes) to improve issue capture and triage.

Related Issue

Type of Change

• 📦 Dependency & security updates
• 🔧 Bug fix (non-breaking change which fixes an issue)
• 🥂 Improvement (non-breaking change which improves an existing feature)
• 🚀 New feature (non-breaking change which adds functionality)
• 💥 Breaking change (fix or feature that would cause existing functionality to change)
• 🔐 Security fix
• 📚 Examples / documentation / tutorials

Checklist

• I've written tests (if applicable) for all new methods and classes that I created. (rake test)
• I've added documentation as necessary so users can easily use and understand this feature/fix.