fix(docker): COPY backend/ not root — main.py at /home/user/app/main.py

Dockerfile

@@ -3,7 +3,7 @@ FROM python:3.11-slim
 ENV PYTHONUNBUFFERED=1 \
     PYTHONDONTWRITEBYTECODE=1 \
     PORT=7860 \
-    FRONTEND_DIST=/home/user/app/static \
+    PYTHONPATH=/home/user/app \
     PLAYWRIGHT_BROWSERS_PATH=/ms-playwright
 
 WORKDIR /app
@@ -15,7 +15,8 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
     libxfixes3 libxrandr2 libgbm1 libasound2 \
     && rm -rf /var/lib/apt/lists/*
 
-COPY requirements.txt /app/requirements.txt
+# Space has backend/ subdir (full repo push) — copy from backend/
+COPY backend/requirements.txt /app/requirements.txt
 RUN pip install --no-cache-dir -r /app/requirements.txt \
     && playwright install chromium \
     && chmod -R 755 /ms-playwright
@@ -32,7 +33,8 @@ USER user
 ENV HOME=/home/user PATH=/home/user/.local/bin:$PATH
 
 WORKDIR /home/user/app
-COPY --chown=user . /home/user/app/
+# Copy only backend/ contents → main.py lands at /home/user/app/main.py
+COPY --chown=user backend/ /home/user/app/
 
 EXPOSE 7860
 CMD ["sh", "-c", "uvicorn main:app --host 0.0.0.0 --port ${PORT:-7860} --workers 1"]