build: only install tessdata

Dockerfile.backend

@@ -9,7 +9,7 @@ WORKDIR /
 COPY pyproject.toml .
 
 RUN apt update
-RUN apt install -y curl tesseract-ocr libtesseract-dev
+RUN apt install -y curl tesseract-ocr-eng
 RUN curl -sSL https://install.python-poetry.org | python -
 RUN poetry install --without=dev
 
@@ -19,12 +19,12 @@ FROM python:3.11.6-slim
 ENV HOME /home/user
 ENV PYTHONUNBUFFERED 1
 ENV PYTHONDONTWRITEBYTECODE 1
-ENV TESSDATA_PREFIX /usr/share/tesseract-ocr/5/tessdata/
+ENV TESSDATA_PREFIX /usr/share/tessdata
 
 WORKDIR $HOME/app
 
 COPY --from=builder /usr/local/lib/python3.11/site-packages /usr/local/lib/python3.11/site-packages
-COPY --from=builder /usr/share/tesseract-ocr/5/tessdata/ $TESSDATA_PREFIX
+COPY --from=builder /usr/share/tesseract-ocr/5/tessdata/eng.traineddata $TESSDATA_PREFIX/eng.traineddata
 COPY . $HOME/app
 
 CMD ["python", "main.py"]