test: replace Dockerfile with test version to debug build process

Dockerfile

@@ -1,51 +1,17 @@
-FROM nvidia/cuda:11.8.0-cudnn8-runtime-ubuntu22.04
+FROM ubuntu:22.04
 
-ENV DEBIAN_FRONTEND=noninteractive
-ENV PYTHONUNBUFFERED=1
+# This is a test Dockerfile to see if it's actually being used
+RUN echo "TESTING IF THIS DOCKERFILE IS ACTUALLY USED" > /test_file.txt && \
+    echo "If you see this message, the correct Dockerfile is being used!" && \
+    cat /test_file.txt
 
-RUN apt-get update && apt-get install -y \
-    python3.10 \
-    python3-pip \
-    git \
-    curl \
-    ffmpeg \
-    && rm -rf /var/lib/apt/lists/*
+# Create a very obvious test directory
+RUN mkdir -p /THIS_IS_A_TEST_DIRECTORY && \
+    echo "TEST CONTENT" > /THIS_IS_A_TEST_DIRECTORY/test.txt
 
-# Download VSCode server using curl (if needed)
-RUN if [ ! -d "/opt/openvscode-server" ]; then \
-    curl -L https://github.com/gitpod-io/openvscode-server/releases/download/openvscode-server-v1.86.2/openvscode-server-v1.86.2-linux-x64.tar.gz -o /tmp/openvscode-server.tar.gz && \
-    tar -xzf /tmp/openvscode-server.tar.gz -C /opt && \
-    rm /tmp/openvscode-server.tar.gz && \
-    mv /opt/openvscode-server-v1.86.2-linux-x64 /opt/openvscode-server && \
-    chown -R 1000:1000 /opt/openvscode-server || true; \
-    fi
+# Print test message during build
+RUN echo "=================================================" && \
+    echo "THIS IS A TEST BUILD - IF YOU SEE THIS, THE DOCKERFILE IS BEING USED" && \
+    echo "================================================="
 
-# Set up git config file
-RUN touch /etc/gitconfig && \
-    chmod 666 /etc/gitconfig && \
-    git config --system user.email "[email protected]" && \
-    git config --system user.name "jmanhype"
-
-RUN useradd -m -u 1000 user && \
-    mkdir -p /home/user/.config/git && \
-    touch /home/user/.gitconfig && \
-    chown -R user:user /home/user/.gitconfig && \
-    chmod 666 /home/user/.gitconfig
-
-USER user
-ENV PATH="/home/user/.local/bin:$PATH"
-ENV HOME="/home/user"
-ENV SKIP_VSCODE=true
-ENV DISABLE_VSCODE_INSTALLATION=true
-ENV HF_SPACE_NO_VSCODE=true
-
-WORKDIR /home/user/app
-
-COPY --chown=user . .
-
-RUN pip install --no-cache-dir --upgrade pip && \
-    pip install --no-cache-dir -r requirements.txt
-
-EXPOSE 7860
-
-CMD ["python3", "-m", "scripts.gradio.app_gradio_space"]
+CMD ["cat", "/test_file.txt"]