Fix : GeometricExtents not working so used GetBoundingBox to get min an max point of entity

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✅ Resolved

The issue occurred because .GeometricExtents is unreliable for certain entity types (especially AcDbBlockReference) when accessed via COM in Python. It often raises <unknown>.GeometricExtents errors due to internal limitations in the AutoCAD COM API.

I've fixed this in the latest version of the library by replacing:

entity.GeometricExtents.MinPoint / MaxPoint

with:

entity.GetBoundingBox()

This method is much more stable and returns accurate extents even for block references, respecting rotation and scaling.

Please pull the latest version of the library — the get_block_extents() function now uses GetBoundingBox() internally.