- questions: extracted from config.yaml into config/questions.yaml (committed, like optical_flow_config.yaml)
- optical_flow_config_file and questions_config_file are now required fields
- data_dir and out_dir are now required (no defaults)
- filenames: trimmed to input-only in example; output filenames stay as code defaults
- annotator: remove optional guard around optical flow config loading
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>