Use official Python image instead of China registry

Dockerfile

@@ -1,15 +1,6 @@
-# Build from Python base image
+# Base image: Official Python slim 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
 

Dockerfile.fallback

@@ -12,3 +12,4 @@ EXPOSE 7860
 
 # Start aktools binding to 0.0.0.0 and the PORT env variable
 CMD ["sh", "-c", "python -m aktools --host 0.0.0.0 --port ${PORT}"]
+