Add system dependencies for aktools

Dockerfile

@@ -1,6 +1,15 @@
 # Build from Python base image
 FROM python:3.10-slim
 
+# Install system dependencies required by aktools
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    gcc \
+    g++ \
+    libffi-dev \
+    libxml2-dev \
+    libxslt-dev \
+    && rm -rf /var/lib/apt/lists/*
+
 # Install aktools
 RUN pip install --no-cache-dir aktools