Writes <mods>/<id>/ship.cc and ship.glb: a shipped hull's stats, a 4x6 grid with two drives, a radiator, two energy guns and the internal modules, and a boxed model carrying every anchor. The package is read back through ShipModCatalog.ReadPackage, so the GLB's node ids and mesh roles are judged by the reader the game boots with. Refuses to overwrite a package.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
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