Release v1.8.0

What changed

• Added practical Docker support with a multi-target Dockerfile:
  • runtime target for CLI execution
  • dev target for lint/tests/build workflows
• Added .dockerignore to keep Docker build context clean and avoid local artifact
  leakage.
• Added a Docker smoke job in CI:
  • build runtime image
  • run ai-prompt-runner --version in container
• Updated README with:
  • quick links (PyPI, docs, project page)
  • refined Quick Start
  • architecture flow diagram
  • Docker Workflow section with build/run/tests/lint examples
• Clarified default output location behavior in quick-start docs (outputs/ created
  relative to current working directory).

Why it matters

• Provides reproducible runtime and development environments without changing
  product behavior.
• Reduces environment drift across local machines and CI.
• Adds a lightweight, practical container validation gate in CI.

Notes

• v1.8.0 is a distribution and developer-experience release.
• No CLI interface breaking changes.
• No output schema/contract changes.
• Stateless execution architecture remains unchanged.

GitHub Pull Requests Included

• Feature/v1.8 docker baseline by @damienSavoldelli in #44
• release: prepare v1.8.0 by @damienSavoldelli in #45

Full Changelog: v1.7.2...v1.8.0