Add Copilot instructions for repository conventions

[Copilot]

Configures GitHub Copilot coding agent with repository-specific conventions and standards per best practices.

Changes

• Added .github/copilot-instructions.md documenting:
  • 3-tier directory structure: {Language}/{Category}/{Subcategory}/
  • Script placement rules with examples (e.g., Python database backup → Python/automation/backup/)
  • Naming: kebab-case with action verbs (backup-mysql-database.py)
  • Language-specific standards for PowerShell, Python, Bash, JavaScript, Go, Ruby
  • Required documentation templates per language
  • Security rules: no hardcoded credentials, validate inputs, sanitize paths
  • Testing expectations: valid, invalid, and edge cases
  • Git workflow preferences (plain git + web UI for PRs)

Example Convention

#!/usr/bin/env python3
"""
Brief description of the script.

Detailed description of functionality and usage.
"""
# Follow PEP 8, use type hints, include requirements.txt

The instructions enable Copilot to maintain consistency across the 6 supported languages and enforce the repository's organizational structure.

Original prompt

---

This section details on the original issue you should resolve

<issue_title>✨ Set up Copilot instructions</issue_title>
<issue_description>Configure instructions for this repository as documented in Best practices for Copilot coding agent in your repository.

</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes ✨ Set up Copilot instructions #5

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✨ Let Copilot coding agent set things up for you — coding agent works faster and does higher quality work when set up for your repo.

[Copilot]

Pull Request Overview

This PR establishes GitHub Copilot coding agent instructions for the Scripts repository, implementing repository-specific conventions and standards as recommended by GitHub's best practices.

Key Changes:

• Adds comprehensive .github/copilot-instructions.md documenting the repository's 3-tier organizational structure, naming conventions, and coding standards
• Defines language-specific requirements for PowerShell, Python, Bash, JavaScript, Go, and Ruby scripts
• Establishes security guidelines and testing expectations for all scripts

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💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.