update dockerfile

Dockerfile

@@ -14,10 +14,10 @@ ENV HOME=/home/user \
 WORKDIR $HOME/app
 
 # Copy requirements file first to leverage Docker cache
-COPY --chown=user requirements.txt .
+COPY --chown=user pyproject.toml .
 
 # Install dependencies
-RUN pip install --no-cache-dir --upgrade -r requirements.txt
+RUN pip install --no-cache-dir --upgrade -e .
 
 # Create and set permissions for chainlit files directory
 RUN mkdir -p $HOME/app/.files && \