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turnstone/tests
Patrick Buckley bfb8a970dd feat(attachments): pdf + audio attachment kinds (dormant spine)
Provider-neutral plumbing for PDF and audio attachments, with no
user-facing change yet: the upload classifier still rejects them and the
capability tables stay unpopulated (both land in the native-translator
phase). No migration — workstream_attachments.kind is free-text.

- attachments.py: PDF/audio byte caps, allowed-audio MIMEs + format map,
  magic-byte sniffers (sniff_pdf_mime / sniff_audio_mime),
  Attachment.is_pdf / is_audio
- providers/_protocol.py: supports_pdf / supports_audio_input capability
  fields (default False; orthogonal to the STT/TTS roles)
- storage/_utils.py: attachment_to_content_part emits the internal
  document(application/pdf, base64) and input_audio shapes
- session.py: by-reference placeholder branches for pdf / audio
- trajectory.py: AttachmentRef docstring (dict-bridge already kind-agnostic)
- tests: test_attachments_pdf_audio.py
2026-06-16 03:50:31 -07:00
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