* add OpenAI like tool_choice for named choice
* add tests
* fix: run linter and bump api docs
* fix: consolidate changes and remove old tool type
* feat: improve, simplify and rename tool choice struct add required support and refactor
* fix: simplify tool choice logic, improve tests, openapi and rust docs
* fix: refactor away prepare_chat_input and improve tool grammar apply control flow
* feat: update docs and add tool choice configuration section
* fix: simplify naming, tool choice default and improve test
* fix: adjust tool choice none logic, add test and small refactors
* fix: add missing snapshot file
* fix: adjust tool choice type in test
* fix: adjust default when json tool choice is
* fix: remove trailing space lint after rebase
* fix: remove mostly mocked unit test
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Co-authored-by: Linus Bierhoff <linus.bierhoff@icloud.com>