* test: reproduce #260 (Targeted cut deletes another body that the tool fully covers)
* Primitives honour `targets` for join/cut/intersect (#260)
solid.box/cylinder/sphere/torus had no targets field, so a `targets` list was
ignored and every body of the component took part: a targeted cut also cut a
non-target body, and deleted one it covered fully. Their `targets` now become
the feature's participants.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
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Co-authored-by: bherbruck <[email protected]>
Co-authored-by: Claude Opus 5.5 <[email protected]>