Release v2.17.0

feat: fall back to a minimal supported file types set (#225)

## Summary
- `get_supported_file_types()` takes an optional `capabilities` list
(`ParserCapability.ASR`, `ParserCapability.VIDEO_LLM`), defaulting to
empty.
- On network failure or a missing endpoint, the local set is built from
that list: empty omits audio and video; known backends include the
formats they unlock.
- Check a file with
`get_supported_file_types(...).supports(filename=...)`.

## Test plan
- [ ] `poetry run pytest tests/test_content_types.py
tests/test_config_models.py tests/test_compass_client.py -k
supported_file`
- [ ] Confirm a 404 or timeout returns the empty-capability set (no
audio/video)
- [ ] Confirm `capabilities=[ParserCapability.ASR]` on fallback includes
mp3 but not mp4
- [ ] Confirm `fallback_on_failure=False` still raises on 404, and 401
is not swallowed

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Co-authored-by: Cursor <cursoragent@cursor.com>