[Piinks]

Replaces transform * position[i] in TransformFilter.filterInplace with the typed transform.transform3(position[i]) and removes the stale // ignore: invalid_assignment comment.

On Dart main, the analyzer now reports argument_type_not_assignable instead of invalid_assignment. Also expands testTransformFilter to cover an affine transform (translation + per-axis scale) and bumps vector_math to 2.4.4.

Unblocks #44

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Code Review

This pull request replaces dynamic multiplication in TransformFilter.filterInplace with Matrix4.transformed3, bumps the package version to 2.4.4, and adds a test for affine transformations. Feedback suggests using transform3 instead of transformed3 to perform the transformation in-place and avoid unnecessary Vector3 allocations inside the loop.