update dockerfile

Dockerfile

@@ -1,22 +1,18 @@
-# First stage: Install dependencies
-FROM python:3.9-slim as builder
+# Use a lightweight Python image
+FROM python:3.9-slim
+
+# Set the working directory
 WORKDIR /app
 
 # Copy requirements and install dependencies
 COPY app/requirements.txt /app/requirements.txt
 RUN pip install --no-cache-dir -r /app/requirements.txt
 
-# Second stage: Copy app code and define production image
-FROM python:3.9-slim
-WORKDIR /app
-COPY --from=builder /usr/local/lib/python3.9/site-packages /usr/local/lib/python3.9/site-packages
+# Copy the rest of the app code
 COPY app /app
 
-# Expose port for the API
+# Expose the port FastAPI will use
 EXPOSE 8000
 
-# Set environment variables
-ENV PYTHONUNBUFFERED=1
-
 # Command to run the FastAPI app
 CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "8000"]