* feat: add yolo mode support to auto vision model switch * feat: add cli args & env variables for switch behavoir * fix: use dedicated model names and settings * docs: add vision model instructions * fix: failed test case * fix: setModel failure
* refactor: openaiContentGenerator * refactor: optimize stream handling * refactor: re-organize refactored files * fix: unit test cases * feat: `/model` command for switching to vision model * fix: lint error * feat: add image tokenizer to fit vlm context window * fix: lint and type errors * feat: add `visionModelPreview` to control default visibility of vision models * fix: remove deprecated files * fix: align supported image formats with bailian doc