feat(stdlib): streaming event types, events() iterator, and OTEL bridge (#902)#958

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planetf1 wants to merge 24 commits intogenerative-computing:mainfrom

planetf1:feat/902-streaming-events

Commits on Apr 28, 2026

feat(core): add cancel_generation() to ModelOutputThunk
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feat(stdlib): add stream_with_chunking() with per-chunk validation (#901)
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test(stdlib): add StreamingMockBackend and streaming orchestration tests
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docs: add streaming_chunking example (#901)
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docs(stdlib): add Args section to StreamChunkingResult class docstring
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docs(stdlib): add Raises section to stream_with_chunking docstring
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fix(stdlib): stream_with_chunking passes one chunk per stream_validate call
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docs(stdlib): fix example for delta semantics and note validator latency
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feat(stdlib): flush trailing chunk fragment at end of stream
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fix(stdlib): address review feedback on streaming validation
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fix(stdlib): address second-round review feedback
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docs(stdlib): add Args and Returns sections to chunker flush overrides
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Commits on Apr 29, 2026