🐞 Fixes

• Low-contrast asset insets are no longer missed. A smooth, low-contrast image asset (such as a muted painting or a dim film still) shown as an inset over a busy broadcast frame (animated background plus people) could be missed entirely. Feature detection spent its whole keypoint budget on the high-contrast background, starving the inset. The broadcast scan now uses a larger keypoint budget than asset indexing, so these insets are detected reliably — with no increase in false positives.