SaveContourCropsNode
====================

Overview
--------
Saves contour crops to disk and writes metadata for downstream classification.

Inputs
------
- Input Image (GrayScaleImage)
- Contours (Contours)
- Padding (Int)
- Min Area (Int)

Parameters
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- Padding: min 0, max 100, default 5. Extra pixels added around each contour crop
- Min Area: min 0, max 10000, default 100. Filters out small contours before saving

Outputs
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- Saved Count (Int)
- Output Directory (String)
- Status (String)

Example
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Use Padding=10 to capture surrounding context around each contour.