llm 0.31

LLM version 0.31 adds support for the new GPT-5.5 model and introduces two new command-line options: one to control text verbosity (how much detail the AI outputs) for GPT-5+ models, and another to set image detail levels for images sent to OpenAI models. The release also registers models from a configuration file (extra-openai-models.yaml) as asynchronous (able to run multiple requests without waiting for each to finish).