Update Dockerfile

Dockerfile

@@ -1,29 +1,24 @@
-FROM python:3.9-slim-bookworm
-
-ENV PYTHONDONTWRITEBYTECODE=1 \
-    PYTHONUNBUFFERED=1 \
-    PIP_NO_CACHE_DIR=1
+FROM python:3.9
 
 # Create non-root user
-RUN useradd -m -u 1000 app
-WORKDIR /app
+RUN useradd -m -u 1000 user
+
+# Environment for user installs
+ENV HOME=/home/user \
+    PATH=/home/user/.local/bin:$PATH
 
-# Install Python deps first for caching
-COPY requirements.txt .
-RUN python -m pip install --upgrade pip \
- && pip install --no-cache-dir -r requirements.txt
+# Workdir
+WORKDIR $HOME/app
 
-# Copy app code and set ownership
-COPY --chown=app:app . .
-USER app
+# Use non-root user
+USER user
 
-# Hugging Face Spaces listens on this port by default
-ENV PORT=7860
-EXPOSE 7860
+# Install dependencies (cache-friendly)
+COPY --chown=user requirements.txt $HOME/app/requirements.txt
+RUN pip install --no-cache-dir -r requirements.txt
 
-# Healthcheck
-HEALTHCHECK --interval=30s --timeout=5s --start-period=20s --retries=3 \
-  CMD curl -fsS http://127.0.0.1:${PORT}/ || exit 1
+# Copy app source
+COPY --chown=user . $HOME/app
 
-# Run Chainlit
-CMD ["sh", "-c", "chainlit run app.py --headless --host 0.0.0.0 --port ${PORT}"]
+# Start app
+CMD ["chainlit", "run", "app.py", "--port", "7860"]