Handle IndexError in cropInfo calculations (FUSE_det / localizingSample) . Defaults to whole image.

[DBP008]

This PR fixes a bug in FUSE_det / localizingSample. No new functionality is introduced.

• Type of change: Bug fix
• Scope: leonardo_toolset/fusion/fuse_det.py
• Backward compatibility: No breaking changes
• Documentation: Not required (no new features)
• Root cause: If thresholding fails, the segmentation arrays d1 or d2 derived from the mask are empty (np.array([])). Accessing d1[0]/d1[-1] or d2[0]/d2[-1] raises IndexError. The pipeline should still run with default behavior (whole image, no cropping).
• Motivation: Ensure robustness on sparse or low-signal inputs where thresholding yields no objects; avoid hard failure and default to using the full image.