Update Dockerfile

Dockerfile

@@ -1,20 +1,23 @@
-# Use Python base
-FROM python:3.10
+FROM python:3.10-slim
 
 # Set up user
 RUN useradd -m -u 1000 user
 USER user
 ENV PATH="/home/user/.local/bin:$PATH"
 
-# Set work directory
+# Set working directory
 WORKDIR /app
 
-# Install backend dependencies
+# Upgrade pip and install requirements
 COPY --chown=user backend/requirements.txt ./requirements.txt
-RUN pip install --no-cache-dir -r requirements.txt
+RUN pip install --upgrade pip && pip install --no-cache-dir -r requirements.txt
 
-# Copy the entire project
+# Copy the full project code (backend and data)
 COPY --chown=user . .
 
-# ✅ IMPORTANT: Use dot notation, not slashes
+# Expose default FastAPI port
+EXPOSE 7860
+
+# Run FastAPI app
 CMD ["uvicorn", "backend.app.main:app", "--host", "0.0.0.0", "--port", "7860"]
+