Fix: Restructure Dockerfile for permissions

Dockerfile

@@ -36,34 +36,38 @@ RUN useradd -m -u 1000 user
 ENV HOME=/home/user \
 	PATH=/home/user/.local/bin:$PATH
 
-# Set the working directory to the user's home directory
+# Set the working directory
 WORKDIR $HOME/app
 
-# Try and run pip command after setting the user to avoid permission issues with Python
-# Copy requirements first and install dependencies as root, then switch user
+# Copy requirements first
 COPY --chown=user requirements.txt .
 
+# Install dependencies as root
 RUN python3 -m venv /opt/mineru_venv && \
     . /opt/mineru_venv/bin/activate && \
     pip install --upgrade pip && \
     pip install -r requirements.txt
 
-# Download model + setup config (run as user)
+# Download model script and set permissions as root
+RUN wget https://github.com/opendatalab/MinerU/raw/master/scripts/download_models_hf.py -O $HOME/app/download_models.py && \
+    chmod +x $HOME/app/download_models.py && \
+    wget https://github.com/opendatalab/MinerU/raw/master/magic-pdf.template.json -O $HOME/app/magic-pdf.json && \
+    chown user:user $HOME/app/download_models.py $HOME/app/magic-pdf.json
+
+# Switch to user to run download script and copy app code
 USER user
+
+# Run download script
 RUN . /opt/mineru_venv/bin/activate && \
-    wget https://github.com/opendatalab/MinerU/raw/master/scripts/download_models_hf.py -O download_models.py && \
-    chmod +x download_models.py && \
-    python3 download_models.py && \
-    wget https://github.com/opendatalab/MinerU/raw/master/magic-pdf.template.json -O $HOME/magic-pdf.json && \
+    python3 $HOME/app/download_models.py && \
+    cp $HOME/app/magic-pdf.json $HOME/magic-pdf.json && \
     sed -i 's|"device": "cpu"|"device": "cpu"|g' $HOME/magic-pdf.json
 
 # Copy the rest of the application code as the user
 COPY --chown=user . $HOME/app
 
 # Create output directories and set permissions (ensure this happens after WORKDIR and USER)
-RUN mkdir -p $HOME/app/output/images && chmod -R 755 $HOME/app/output
-
-# Switch back to user before running the app
-USER user
+# Already running as user, just need to create dirs
+RUN mkdir -p $HOME/app/output/images
 
 CMD ["/opt/mineru_venv/bin/uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]