Update Dockerfile

Dockerfile

@@ -26,6 +26,9 @@ ENV CFLAGS="-Wno-error=incompatible-pointer-types -Wno-error=int-conversion"
 RUN pip install --no-cache-dir --no-build-isolation "scikit-learn>=0.24.0,<0.25.0"
 ENV CFLAGS=""
 
+# Install auto-sklearn from PyPI (includes automl_common submodule)
+RUN pip install --no-cache-dir auto-sklearn
+
 # Install remaining requirements
 RUN pip install --no-cache-dir -r requirements.txt