Add and update GitHub repository configuration files

[CharlesPoulin]

Introduce CODEOWNERS, Dependabot auto-merge workflow, and a comprehensive GitHub settings guide. Update issue and pull request templates for clarity and consistency. Enhance dependabot.yml with improved grouping, scheduling, and labeling. Improve README formatting and instructions.

Description

Please include a summary of the change and which issue is fixed.

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

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with make test

[github-actions]

Coverage report

This PR does not seem to contain any modification to coverable code.

[Copilot]

Pull request overview

This PR introduces comprehensive GitHub repository configuration enhancements including CODEOWNERS for code ownership, a Dependabot auto-merge workflow, and an extensive GitHub settings guide documenting 2026 best practices. It also updates existing configuration files for improved consistency and functionality.

Changes:

• Added new CODEOWNERS file, Dependabot auto-merge workflow, and comprehensive GitHub settings guide
• Enhanced dependabot.yml with improved grouping (dev vs production), daily scheduling, and consistent labeling
• Updated pull request template for better formatting consistency

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
docs/GITHUB_SETTINGS_GUIDE.md	New comprehensive guide documenting GitHub repository settings and best practices for 2026
.github/workflows/dependabot-auto-merge.yml	New workflow to automatically approve and merge Dependabot PRs based on update type
.github/dependabot.yml	Enhanced configuration with improved grouping, daily schedules, timezone settings, and consistent labeling
.github/PULL_REQUEST_TEMPLATE.md	Minor formatting improvements with additional blank lines for clarity
.github/CODEOWNERS	New file defining code ownership with placeholder usernames requiring updates

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[Copilot]

The placeholder '@your-username' should be replaced with the actual GitHub username. Lines 11, 14, 17, 20, 21, 24, and 25 all contain this placeholder that needs to be updated to '@CharlesPoulin' or the appropriate reviewer's username.

Suggested change

	/tests/ @your-username
	# CI/CD workflows - critical changes
	/.github/workflows/ @your-username
	# Security policy changes
	SECURITY.md @your-username
	# Dependency changes
	pyproject.toml @your-username
	uv.lock @your-username
	# Documentation
	/docs/ @your-username
	README.md @your-username
	/tests/ @charlespoulin
	# CI/CD workflows - critical changes
	/.github/workflows/ @charlespoulin
	# Security policy changes
	SECURITY.md @charlespoulin
	# Dependency changes
	pyproject.toml @charlespoulin
	uv.lock @charlespoulin
	# Documentation
	/docs/ @charlespoulin
	README.md @charlespoulin

[Copilot]

The example workflow uses outdated action versions. The repository's actual workflows use actions/checkout@v6 and astral-sh/setup-uv@v7. Update the documentation examples to match the versions used in the actual .github/workflows/ci.yml file for consistency.

[Copilot]

Setting Dependabot to run daily may generate excessive PRs and noise. Weekly updates are typically more manageable for most projects. Consider whether daily updates align with the team's capacity to review dependency changes.