Llm4sAnthropicModule

Registers llm4s-anthropic's provider: the Anthropic Claude API (id anthropic).

Anthropic supplies a chat client only, so this module overrides chatProviders and leaves embeddingProviders empty.

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

given ProviderRegistry = ProviderRegistry.builtin.withModule(new Llm4sAnthropicModule)

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