Generate CI/CD workflows

[MichaelSchmidle]

Generate GitHub Actions workflows for automated testing and deployment.

Workflows to generate:

1. .github/workflows/test.yml - Run tests on PR
2. .github/workflows/deploy.yml - Deploy on git tag push

Example deploy workflow:

• Trigger: Tag push (v*)
• Steps: SSH to server → git checkout tag → light up
• Notifications: Deployment status

Related: 001-T076-T083 from spec 001, #1 (SSH deployment)