Update Dockerfile

Dockerfile

@@ -9,13 +9,28 @@ ENV PYTHONDONTWRITEBYTECODE=1 \
 
 RUN mkdir -p $STREAMLIT_HOME
 
-# --- Install deps ---
-RUN pip install --no-cache-dir streamlit==1.45.1 pillow
+# --- System deps for conversions ---
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    pandoc \
+    unoconv \
+    libreoffice-core \
+    ffmpeg \
+    libmagic1 \
+ && rm -rf /var/lib/apt/lists/*
 
-# --- Copy code ---
+# --- Python deps ---
+RUN pip install --no-cache-dir \
+    streamlit==1.45.1 \
+    pillow \
+    pypandoc \
+    ffmpeg-python \
+    python-magic
+
+# --- App code ---
 COPY app.py /app/app.py
 WORKDIR /app
 
-# --- Run the app ---
+# --- Expose & run ---
 EXPOSE 7860
+
 CMD ["streamlit", "run", "app.py"]