Llm4sVoyageModule

Registers llm4s-voyage's one provider: the Voyage AI embedding provider, under the id voyage (alias voyageai). Voyage supplies embeddings and no chat client, so this module overrides only embeddingProviders.

Declared in this module's META-INF/services/org.llm4s.llmconnect.spi.Llm4sProviderModule, so adding the llm4s-voyage dependency is all it takes for ProviderRegistry.default to resolve EMBEDDING_MODEL=voyage/<model>. Where discovery cannot run - a fat jar whose services files were overwritten rather than merged - register it explicitly:

given ProviderRegistry = ProviderRegistry.ofModules(new Llm4sVoyageModule)

A class rather than an object because java.util.ServiceLoader instantiates the class named in the services file through its public no-arg constructor.