Update Dockerfile

Dockerfile

@@ -32,12 +32,13 @@ USER appuser
 COPY --chown=appuser:appuser requirements.txt .
 RUN pip install --no-cache-dir -r requirements.txt
 
-# Copy and build the Rust module using maturin
+# Copy and build the Rust module using maturin (as root)
+USER root
 COPY --chown=appuser:appuser rust_highlight /app/rust_highlight
 WORKDIR /app/rust_highlight
 
-# Compile and install Rust module into Python environment
-RUN . "$HOME/.cargo/env" && maturin develop --release
+ENV PATH="/root/.cargo/bin:${PATH}"
+RUN maturin develop --release
 
 # 6. Copy all application files
 COPY --chown=appuser:appuser app.py image_fetcher.py video.py video2.py ./