novelty-matrix

Use when `paper-review` needs overlap/delta positioning against provided related work. **Trigger**: novelty matrix, prior-work matrix, overlap/delta, 相关工作对比, 新颖性矩阵. **Use when**: `paper-review` 中评估 novelty/positioning，需要把贡献与相关工作逐项对齐并写出差异点证据。