Switch to pip install aktools

Dockerfile

@@ -1,5 +1,8 @@
-# Base image: AKTools official Docker image
-FROM registry.cn-shanghai.aliyuncs.com/akfamily/aktools:1.8.95
+# Build from Python base image
+FROM python:3.10-slim
+
+# Install aktools
+RUN pip install --no-cache-dir aktools
 
 # Hugging Face Spaces injects PORT env var (default 7860)
 ENV PORT=7860
@@ -9,3 +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}"]
+