e3e60f914b
- Added `disable-image-generation` configuration flag to disable the `image_generation` tool globally. - Updated payload handling to remove `image_generation` tools from request payload arrays when the flag is enabled. - Modified OpenAI image handlers (`ImagesGenerations`, `ImagesEdits`) to return 404 when the feature is disabled. - Enhanced configuration diff logging to track changes for the `disable-image-generation` flag. - Added accompanying unit tests for the new feature in payload helpers and image handler logic.