hedge-fund 2.1.0

Changes

• hedge-fund is now on PyPI: pipx install hedge-fund, then run aihf from anywhere
• New aihf command replaces poetry run invocations
• User data (mandates, cache, API keys) now lives in ~/.hedge-fund/
• The app prompts for missing API keys on first run and saves them for you
• Add model selector and thinking support
• Add LLM clients (Anthropic, OpenAI, DeepSeek, Google, xAI, Kimi)
• v2 is now the default: v1 code and the TypeScript frontend are removed

Full Changelog: v2.0.2...v2.1.0