1179897cba
Happy Coder is no longer used. Node.js was only installed as a dependency for `npm install -g happy-coder`, so both are removed. This shrinks the Docker image and simplifies the configuration. Removed from: Dockerfile, Helm values/schema/templates, serverless manifests, Makefile, and all documentation. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>