- Bump version to 5.0b6 and regenerate HTML documentation via pdoc3.
- Add persistent AI chat sessions (list, resume, delete) stored locally.
- Fix 'rich' library console rendering and routing 'error()' to stderr.
- Update Architect UI color theme to medium_purple.
- Sanitize caching metadata (cache_control) for compatibility with non-Anthropic models.
- Fix .folder config path redirection mapping and fzf-wrapper compatibility.
- Ensure context plugin correctly filters node lists upon load.
- Inject config instance directly into API components instead of instantiating globally.
- Fix edge-case in plugin loading preventing startup when folder is missing.
- Add comprehensive test coverage for printer module and AI sessions.