Add PR template with linting requirements

[Copilot]

Description

Added GitHub PR template that enforces the linting and code quality standards established in this PR. The template appears automatically when creating new PRs and includes a Code Quality Checklist covering Black, isort, Flake8, Pylint, pre-commit hooks, and CI workflow verification.

Type of Change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation update
• Code refactoring
• Performance improvement
• Other (please describe):

Related Issues

Addresses comment requesting PR template for linting requirements.

Testing

• Tested locally
• Added/updated unit tests
• All existing tests pass

Code Quality Checklist

• Code passes Black formatting check (black --check .)
• Code passes isort import sorting check (isort --check-only .)
• Code passes Flake8 linting (flake8 .)
• Code passes Pylint checks (or documented why warnings are acceptable)
• Pre-commit hooks installed and passing (pre-commit run --all-files)
• CI workflow (lint.yml) passes successfully

Documentation

• Code is self-documenting and/or includes necessary comments
• README.md updated (if needed)
• Documentation updated (if needed)

Additional Notes

Template enforces all linting tools (Black, isort, Flake8, Pylint) and pre-commit hooks established in .flake8, .pylintrc, pyproject.toml, and .pre-commit-config.yaml. Future PRs will auto-populate with this checklist.

---

💡 You can make Copilot smarter by setting up custom instructions, customizing its development environment and configuring Model Context Protocol (MCP) servers. Learn more Copilot coding agent tips in the docs.