- Fix Layout/LineLength in lib/template_folders.rb
- Disable Rails/Exit in spec/rails_helper.rb (standard Rails boilerplate)
- Simplify Dockerfile.ci (remove pdfium/chromium for lint)
- Fix docker-compose.ci.yml (remove volume mounts that conflict with COPY)
- Add pg_data and .claude to .dockerignore
All linters verified passing locally via docker compose.
Co-authored-by: Sebastian Noe <sebastian.schneider@boxine.de>