Add the dialog role and the interaction affordances the free-interaction
layer depends on: Setup.interactions, Package.dialogs, and the Interaction,
DialogAction, and Dialog types. Wire the dialog role through the zod
schemas, package collection (with duplicate checking), and vite
serialization, and update the tabletop serializedToPackage and test
fixtures to carry dialogs.
Normalize the games root to POSIX separators so the HMR path guard
matches on Windows, and watch the real on-disk markdown files (which
defMap.files omits in favor of their virtual code blocks) so edits
trigger a re-collect instead of a manual restart.
Vite 8 (rolldown) changed buildStart to take (this, options), so the
test's one-arg call failed typecheck. Add an ambient declaration for the
fixture's virtual bgm modules so its entry typechecks in the editor.
Add a SerializedPackage type for the JSON the plugin emits, and tests
that assert the maps serialize to plain objects, that the packages module
returns every package, and that buildStart watches def files. Add a
second fixture package to exercise multi-package collection.
Rename the plugin's virtual modules to virtual:bgm/packages and
virtual:bgm/package/<id> so they read as plugin-provided modules rather
than real packages. Update the unit and build integration tests.
Move the bgm vite plugin into the package so it can be tested in
isolation from the web app. Serve each package as a JSON module,
serializing its maps, and verify resolution through a real vite build
against a self-contained fixture.