Add CI/CD Pipeline with GitHub Actions

[Christiantyemele]

Description

Set up a CI/CD pipeline using GitHub Actions to automatically test, lint, and deploy the application.

Tasks

• Create .github/workflows/ci.yml for continuous integration
• Configure linting with ESLint on every push
• Configure TypeScript type checking on every push
• Run tests on every push
• Create .github/workflows/deploy.yml for deployment
• Configure deployment to Vercel or similar platform
• Add Supabase migration workflow
• Configure environment variables for CI/CD
• Add branch protection rules
• Add status badges to README

CI Pipeline

name: CI
on: [push, pull_request]
jobs:
  lint:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - run: npm ci
      - run: npm run lint
  type-check:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - run: npm ci
      - run: npm run type-check
  test:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - run: npm ci
      - run: npm test

Acceptance Criteria

• CI pipeline runs on every push and PR
• All checks must pass before merging
• Deployment happens automatically on main branch
• Supabase migrations run automatically
• Build artifacts are cached for performance