Update Dockerfile

Dockerfile

@@ -105,14 +105,11 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
     poppler-utils \
     && apt-get clean && rm -rf /var/lib/apt/lists/*
 
-RUN python -c "import nltk; \
-    nltk.download('punkt', download_dir='/app/nltk_data'); \
-    nltk.download('averaged_perceptron_tagger', download_dir='/app/nltk_data'); \
-    nltk.download('wordnet', download_dir='/app/nltk_data')"
-
 # Python deps
 RUN pip install --upgrade pip && pip install --no-cache-dir -r requirements.txt
 
+RUN python -m nltk.downloader -d /app/nltk_data punkt averaged_perceptron_tagger wordnet || true
+
 # Create necessary directories with correct permissions
 RUN mkdir -p /app/nltk_data /app/.config/matplotlib \
  && mkdir -p /app/cache /app/data /app/logs /app/outputs /app/blocks \