Fix: symlink app to backend/app for import

Dockerfile

@@ -9,10 +9,13 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
 COPY backend/requirements.txt .
 RUN pip install --no-cache-dir -r requirements.txt
 
-COPY . .
+COPY backend/ ./backend/
+COPY app.py.bak ./app.py
 
 RUN mkdir -p /app/backend/app/data/context /app/backend/app/data/daemon /app/backend/app/data/adaptive /app/backend/app/data/knowledge /app/backend/app/data/memory /app/backend/app/data/simulations
 
+RUN ln -sf /app/backend/app /app/app
+
 ENV PYTHONUNBUFFERED=1
 ENV PORT=7860
 ENV PYTHONPATH=/app