0.2.0

Breaking changes

• InferenceProvider.providerName() is now vendor(), and so are
  Embedder.providerName() and EmbeddingProvider.providerName(). The value
  is unchanged: the OpenTelemetry gen_ai.provider.name (openai, x_ai,
  gcp.gemini, ...), which two providers can share. OpenAiProviderConfig.provider(String)
  is now vendor(String). Traces are byte-identical.
• A harness factory holds its providers by name.
  DirectHarnessFactoryConfig.provider(InferenceProvider) and
  QueuedHarnessFactoryConfig.inference(InferenceProvider, InferenceOptions)
  are replaced by a repeatable provider(ProviderId, InferenceProvider) on
  both configs, plus inference(ProviderId, InferenceOptions) for the
  factory's defaults. Migrate
  f.provider(p) to f.provider(ProviderId.of("openai"), p).inference(ProviderId.of("openai"), InferenceOptions.of("<model>")).
• Every agent type needs a provider and a model, its own
  (inference(in -> in.provider("openai").model("..."))) or the factory's
  defaults. A missing or unregistered one fails when the harness is built,
  naming the agent type and listing the registered providers.
• DirectHarnessFactory.providerName() is removed: a factory holding
  several providers has no single answer.
• Spring Boot: nessy.provider and nessy.model are a pair. Set both,
  or neither and name them on each agent type; setting one fails at startup.
  Several vendor keys set no longer means one provider picked by
  auto-configuration order: every lit provider is registered.
• Spring Boot: an application's own InferenceProvider beans no longer
  switch the vendor presets off. They are registered beside them under
  their bean names. A bean named like a lit preset fails startup.
• Spring Boot: OpenAiAutoConfiguration, AnthropicAutoConfiguration and
  GeminiAutoConfiguration are replaced by InferenceProvidersAutoConfiguration.
  Update any spring.autoconfigure.exclude that names them.

Added

• ProviderId, the name an application gives a provider; InferenceConfig.provider(ProviderId)
  and provider(String).
• Spring Boot presets. A hosted preset is registered when its key is set:
  openai (OPENAI_API_KEY), xai (XAI_API_KEY), anthropic
  (ANTHROPIC_API_KEY), gemini (GEMINI_API_KEY or GOOGLE_API_KEY),
  openrouter (OPENROUTER_API_KEY), nvidia (NVIDIA_API_KEY). A local one
  when switched on: lmstudio and ollama (nessy.providers.<id>.enabled: true).
  Every preset was measured against its real endpoint before it shipped: a
  tool call, reported usage, and a forced answer.
• nessy.providers.<id>.* (api-key, enabled, wire, base-url,
  vendor) overrides any preset field; an id that is not a preset declares a
  custom provider and must set wire (openai, anthropic or gemini) and
  base-url. enabled: false turns any provider off, key or no key.
• The startup report lists every registered provider (id, wire, endpoint,
  vendor, never the key), and each harness logs the provider and model its
  agent type resolved to when it is built.
• PresetCandidatesLiveTest (@Tag("live")) measures OpenAI-shaped vendors
  and the existing presets against their real endpoints from the keys in the
  environment, and writes target/preset-measurements.md.

Changed

• An agent type built from factory defaults that carry no max-tokens gets
  4096 on both doors.
• The console: NESSY_PROVIDER and NESSY_MODEL are required together; a
  mistyped NESSY_PROVIDER is reported, not thrown. /config shows the
  provider only when the console chose it.
• The examples name their provider: chat-web and watchman use the lmstudio
  preset by default; watchman's scripted mode is WATCHMAN_PROVIDER=scripted.
• nessy-bom keeps its parent for the build and is flattened when published:
  it manages only Nessy's own artifacts. Every module publishes the
  repository's own URL and SCM connection.
• Dependencies: openai-java 4.69.2, anthropic-java 2.65.0, google-genai
  1.73.0, AWS SDK 2.55.5, Jackson 3.2.3 and 2.22.3, Netty 4.2.18, Tomcat
  11.0.26, HikariCP 7.1.0, SLF4J 2.0.20.