Update Dockerfile

Dockerfile

@@ -3,22 +3,18 @@ FROM python:3.9
 # Create non-root user
 RUN useradd -m -u 1000 user
 
-# Environment for user installs
 ENV HOME=/home/user \
     PATH=/home/user/.local/bin:$PATH
 
-# Workdir
 WORKDIR $HOME/app
-
-# Use non-root user
 USER user
 
-# Install dependencies (cache-friendly)
+# Upgrade pip first (helps avoid old resolver oddities)
+RUN pip install --no-cache-dir --upgrade pip
+
 COPY --chown=user requirements.txt $HOME/app/requirements.txt
 RUN pip install --no-cache-dir -r requirements.txt
 
-# Copy app source
 COPY --chown=user . $HOME/app
 
-# Start app
-CMD ["chainlit", "run", "app.py", "--port", "7860"]
+CMD ["chainlit", "run", "app.py", "--port", "7860"]