Issue: Weak Robustness Testing - Missing Critical Preprocessing Transformations #20

The robustness testing suite includes only 4 basic transforms (identity, gaussian blur, 2 resize operations), missing critical preprocessing steps that real-world mimicry pipelines actually use. This creates a false sense of robustness—protection may survive gaussian blur but fail against JPEG compression, center crops, or CLIP preprocessing that DreamBooth/LoRA models apply.