Fix Dockerfile configuration for backend app

Updated PYTHONPATH and ensured CMD starts correctly.

Author: Ahmad-009

backend/Dockerfile

@@ -11,16 +11,16 @@ RUN pip install --default-timeout=100 --no-cache-dir -r requirements.txt
 
 FROM python:3.12-slim AS runner
 
-# FIX 1: Removed the extra /app so it matches your local computer exactly
 WORKDIR /backendapp  
 
 COPY --from=builder /opt/venv /opt/venv
 ENV PATH="/opt/venv/bin:$PATH"
 
 COPY . .
 
-# FIX 2: Expose the port Render actually looks for
+# FIX 4: Tell Python exactly where to look for your local folders/modules
+ENV PYTHONPATH="/backendapp:/backendapp/app"
+
 EXPOSE 10000
 
-# FIX 3: Start it correctly on port 10000
 CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "10000"]