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feat: brain PDF/image text extraction — pymupdf + tesseract OCR + vision API

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- PDF: extracts selectable text via pymupdf, falls back to Tesseract OCR for scanned docs
- PDF: renders first page as screenshot thumbnail
- Images: Tesseract OCR for text extraction, OpenAI vision API fallback for photos
- Plain text files: direct decode
- All extracted text stored in extracted_text field for search/embedding
- Tested: PDF upload → text extracted → AI classified → searchable

New deps: pymupdf, pytesseract, Pillow
System dep: tesseract-ocr added to both Dockerfiles

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
Yusuf Suleman
2026-04-01 18:49:04 -05:00
parent 2c3f0d263b
commit b179386a57
6 changed files with 286 additions and 2 deletions
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services/brain/requirements.txt
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@@ -9,3 +9,6 @@ rq==2.1.0
httpx==0.28.1
pydantic==2.10.4
python-multipart==0.0.20
pymupdf==1.25.3
pytesseract==0.3.13
Pillow==11.1.0