* chore: reject bare str at file-input sinks to prevent local-file read (#27667)
Squash-merged by litellm-agent from stuxf's PR.
* fix: use os.PathLike in ocr sink and check truthy reasoningSummary for bridge
- ocr/main.py: widen Path check to os.PathLike for consistency with other sinks
- main.py: bridge condition checks truthiness of reasoning_summary, not just None
Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>
* fix: remove unused pathlib.Path import in ocr/main.py
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Co-authored-by: yuneng-jiang <yuneng@berri.ai>
Co-authored-by: ryan-crabbe-berri <ryan@berri.ai>
Co-authored-by: stuxf <70670632+stuxf@users.noreply.github.com>
Co-authored-by: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>
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