fix: clone with submodules

Dockerfile

@@ -5,7 +5,7 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
     rm -rf /var/lib/apt/lists/*
 
 # Build stable-diffusion.cpp from source (latest, with Anima support)
-RUN git clone --depth 1 https://github.com/leejet/stable-diffusion.cpp /tmp/sdcpp && \
+RUN git clone --depth 1 --recurse-submodules https://github.com/leejet/stable-diffusion.cpp /tmp/sdcpp && \
     cd /tmp/sdcpp && mkdir build && cd build && \
     cmake .. -DCMAKE_BUILD_TYPE=Release \
              -DSD_BUILD_SHARED_LIBS=OFF \