Major Changes
- 4e38b38: chore (ai): remove LanguageModelResponseMetadataWithHeaders type
- 54cb888: chore (ai): remove experimental_StreamData export
- 9a3d741: chore (ai): remove ExperimentalTool export
- a4f8ce9: chore (ai): AssistantResponse cleanups
- 7264b0a: chore (ai): remove responseMessages property from streamText/generateText result
- 62d08fd: chore (ai): remove TokenUsage, CompletionTokenUsage, and EmbeddingTokenUsage types
- e5d2ce8: chore (ai): remove deprecated provider registry exports
- 70ce742: chore (ai): remove experimental_continuationSteps option
- 0827bf9: chore (ai): remove LangChain adapter
toAIStreammethod