Modified dockerfile

Dockerfile

@@ -17,27 +17,16 @@ RUN if [ -d dist ]; then mv dist out; \
 
 # ---------- Python runtime ----------
 FROM python:3.11-slim
-
-ENV PIP_NO_CACHE_DIR=1 \
-    PIP_DISABLE_PIP_VERSION_CHECK=1 \
-    PIP_ONLY_BINARY=:all: \
-    PYTHONUNBUFFERED=1 \
-    PORT=7860
-
-# tools that some wheels rely on; tiny
-RUN apt-get update && apt-get install -y --no-install-recommends curl && rm -rf /var/lib/apt/lists/*
+ENV PIP_NO_CACHE_DIR=1 PYTHONUNBUFFERED=1 PORT=7860
 
 WORKDIR /app
-
 COPY requirements.txt ./
-# +cpu index gives you a small CPU torch wheel; drop if you bring your own CUDA base
 RUN python -m pip install --upgrade pip && \
     pip install --extra-index-url https://download.pytorch.org/whl/cpu -r requirements.txt
 
-# copy app after deps (better layer caching)
 COPY backend/ ./backend/
-COPY ui/dist ./ui/dist
+# copy built UI from the builder stage
+COPY --from=ui-builder /app/ui/out ./ui/dist
 
 EXPOSE 7860
-HEALTHCHECK CMD curl -f http://localhost:${PORT}/health || exit 1
 CMD ["uvicorn", "backend.api:api", "--host", "0.0.0.0", "--port", "7860"]