Add GitHub Copilot instructions

[Copilot]

Adds .github/copilot-instructions.md to provide repository context and conventions for GitHub Copilot.

Contents

• Technology stack: Node.js v22.15, Express.js, Kafka, Winston
• Project structure: Routes, services, dispatchers, test organization
• Code standards: ESLint rules (2-space indent, single quotes, semicolons required)
• Testing patterns: Mocha/Chai/Sinon with NYC coverage, test file naming conventions
• Development workflow: Working directory is src/, use npm ci for installs, start with node app.js
• CI/CD: Linting requirements, caching strategy, GHCR deployment on tags
• Common tasks: Dependency management, debugging, Kafka integration patterns

The instructions enable Copilot to generate code consistent with repository conventions and understand the microservice architecture.

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: /home/REDACTED/work/_temp/ghcca-node/node/bin/node /home/REDACTED/work/_temp/ghcca-node/node/bin/node --enable-source-maps /home/REDACTED/work/_temp/copilot-developer-action-main/dist/index.js (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 #50

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