Volter Editor core

Shared document host, panels, Three viewport infrastructure and Code-OSS bridge. Products compose this host with contributions through frame/product; document owners register their openers. The modeling host does not install a game-world mount or built-in scene evaluator.

The source was transferred from the revision recorded in ../../provenance/editor-host.json. Three-aware core is deliberate for this release; this is not a renderer-neutral viewport extraction. Runtime world mounting, game input and game fixtures are outside this package.

Build plugins ship as JavaScript under dist/build so Node can load them from an installed archive. Source remains available for review and public types. Run npm run build:plugins before building a product from a fresh checkout; npm pack runs this step automatically.

This package is private staging. Session route composition, installed-editor startup, live modeling verification and final notices remain outstanding.

The server/* exports preserve the existing workbench proxy, registry writer, worktree identity, opener and shutdown mechanisms. They do not yet compose a complete editor server. Build them with npm run build:session; packing builds them automatically. Tests exercise HTTP routing/isolation and bounded cleanup.