compileProviderSystem takes the dependency declarations from every selected actor, installed provider descriptors, named connections, and provider bindings. It unions the actor dependencies, closes transitive provider dependencies, selects exactly one implementation per provider moniker, materializes the winning bindings into one resolved config, and returns providers in dependency order.

The package owns no factories, actors, runtime handles, or domain policy. Consumers extend ProviderDescriptor with their executable implementation metadata and provision exactly one locator from the returned plan.

This package is intended to move unchanged to a future provider-kit repository.