feat: add interactive modes and a new agent execution tool
maintenance: update version to 1.12.0
perf: improve performance
refactor: update test execution with verbose output and error handling
feat: add caching, plugin support, and interactive modes
refactor: update tool discovery to use __all__
fix: correct import in rp.py and rp.py
docs: update changelog for version 1.9.0
maintenance: update pyproject.toml version to 1.9.0
refactor: remove unused interactive debugging code in assistant.py
feat: add agent execution tool
