Add GitHub Copilot instructions for repository

[Copilot]

Pull Request

Description

Configures GitHub Copilot with repository-specific instructions to guide code generation and suggestions according to RustIRC's architecture, coding standards, and best practices.

Related Issue

Fixes #(issue number from problem statement)

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
• Performance improvement
• Code refactoring

Changes Made

• Created .github/copilot-instructions.md with 179 lines of repository-specific guidance
• Documented project overview, technology stack (Rust 1.75+, Tokio, Iced 0.13.1, ratatui)
• Specified critical coding standards: zero placeholder code, complete platform support, proper error handling
• Included common patterns for compilation error resolution, multi-server architecture, Material Design 3 integration
• Added CI/CD guidelines specific to GitHub Actions workflows
• Documented common pitfalls and anti-patterns to avoid

Testing

• My code follows the project's style guidelines
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas (N/A - documentation only)
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works (N/A - documentation only)
• New and existing unit tests pass locally with my changes

Test Details

Describe the tests you ran to verify your changes:

• Markdown validation: File structure verified with proper heading hierarchy and code blocks
• File placement: Confirmed .github/copilot-instructions.md follows GitHub's documented conventions

Screenshots (if applicable)

N/A - Documentation file only

Performance Impact

• This change has no performance impact
• This change improves performance
• This change may reduce performance (explain why it's worth it)

Security Considerations

• This change has no security implications
• This change improves security
• This change requires security review (explain)

Breaking Changes

• This PR introduces no breaking changes
• This PR introduces breaking changes (describe migration path)

Checklist

• Cargo fmt has been run (N/A - no Rust code changes)
• Cargo clippy shows no warnings (N/A - no Rust code changes)
• Documentation has been updated
• CHANGELOG.md has been updated (not required for tooling configuration)
• All CI checks pass

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• gh.io
  • Triggering command: curl -s REDACTED (dns block)
  • Triggering command: curl -sL REDACTED (dns block)
  • Triggering command: curl -sIL REDACTED (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

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 #29

---

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

---

Note

Adds repository-specific Copilot instructions detailing standards, workflows, and guidance for RustIRC.

• Documentation:
  • Add /.github/copilot-instructions.md outlining:
    • Project overview and technology stack
    • Essential build/run/test commands and code quality checks
    • Coding standards (error handling, cross-platform support, Rust/IRC specifics, GUI patterns)
    • Common patterns (compilation fixes, multi-server architecture, Material Design 3)
    • Testing strategy and CI/CD requirements
    • Directory structure
    • Security, documentation, and performance goals
    • Common pitfalls and getting help

^{Written by Cursor Bugbot for commit 23bb8b3. This will update automatically on new commits. Configure here.}

[doublegate]

Approved for Use -- DG 11/18

[Copilot]

Pull request overview

This PR adds GitHub Copilot-specific instructions to guide AI-assisted code generation for the RustIRC project. The configuration file provides comprehensive documentation about the project's architecture, coding standards, and development practices to help Copilot generate contextually appropriate suggestions.

Key changes:

• Created comprehensive Copilot instructions file with 179 lines of repository-specific guidance
• Documented technology stack, coding standards, and common patterns specific to RustIRC
• Included CI/CD guidelines and common pitfalls to avoid

---

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

[Copilot]

This Git-specific guidance seems out of place in a "Rust Best Practices" section. Consider moving this to a more appropriate section like "Essential Commands" or creating a separate "Version Control" section.

[doublegate]

@copilot apply changes based on this feedback

[Copilot]

Unclear guidance: The phrase "parallel to build" is ambiguous. Consider clarifying to "in parallel with the build" or "before the build completes" for better clarity.

Suggested change

	❌ Running clippy before or parallel to build
	❌ Running clippy before the build completes or in parallel with the build

[doublegate]

Reviewed and Approved -- DG 12/10