Refactor Dockerfile to improve package installation process and clean up APT lists

Dockerfile

@@ -3,7 +3,8 @@ FROM python:3.12-slim
 WORKDIR /app
 
 # Install system dependencies including those needed for OCR and ML models
-RUN apt-get update && apt-get install -y \
+RUN apt-get update && \
+    apt-get install -y --no-install-recommends \
     curl \
     poppler-utils \
     libgl1-mesa-glx \
@@ -11,8 +12,9 @@ RUN apt-get update && apt-get install -y \
     libsm6 \
     libxext6 \
     libxrender-dev \
-    libgomp1 \
-    && rm -rf /var/lib/apt/lists/*
+    libgomp1 && \
+    apt-get clean && \
+    rm -rf /var/lib/apt/lists/*
 
 # Install poetry
 RUN pip install poetry