- Replace --frozen-lockfile with --immutable in builder stage
- Replace --frozen-lockfile --production with --immutable + autoclean in production stage
- This resolves the Yarn 4.9.0 deprecation warnings and build failures
- Update actions/checkout to v6
- Update actions/setup-node to v6
- Update actions/upload-artifact to v5
- Update Node.js to version 22 (Active LTS)
- Update Docker base images to node:22-alpine
- Enable Corepack in Dockerfile to support packageManager field
- Fix lint script to use TypeScript checking instead of invalid yarn check
- Remove manual yarn installation from Dockerfile since Corepack handles it
- Add Dockerfile for multi-stage Node.js build with production optimizations
- Add lint script to package.json that runs TypeScript type checking
- Enable health check endpoint in Docker container
- Configure proper user permissions and security practices
Fixes docker-build workflow failures and enables complete CI/CD pipeline.
