- added support for Anthropic, Bedrock and Ollama models, using `litellm`;
- added `--prompt-family` to select between prompt styles/versions;
- separated prompts into more easily modifiable module;
- implemented test collection isolation and changed to using it by default;
- various improvements to "bad test" finder;
- various adjustments to the prompts;
- implemented asynchronous test running and coverage collection;
- various bug fixes;
- improved packaging, so that project description shows properly on PyPI;