Function applyPluginInjections

applyPluginInjections(
    content: string,
    blueprint: IBlueprint,
    entryDir?: string,
): string
Weave the plugin contributions stashed on the blueprint into a generated entry point.

Reads the modules and blueprint statements gathered by RunStonePluginsMiddleware (stone.builder.pluginModules / pluginBlueprints) and applies both injectors. A no-op when no plugin contributed anything or the template lacks the relevant markers, so entry generators can call it unconditionally.
Parameters
- content: string
  The entry template source.
- blueprint: IBlueprint
  The build blueprint carrying the contributions.
- entryDir: string = ...
  Where the generated entry will be written. Contributed relative specifiers are rewritten against it, because a plugin writes its files into .stone/tmp while an entry lives there only for a production build; a development entry sits in .stone, where ./plugins/x.mjs resolves to a file that is not there.
Returns string
The transformed source.