Fix build: use setuptools and uv, multi-stage Dockerfile

Dockerfile

@@ -1,20 +1,35 @@
-FROM python:3.11-slim
+# Stage 1: Builder for dependencies
+FROM python:3.11-slim-bullseye AS builder
 
 WORKDIR /app
 
-# Install dependencies
-COPY pyproject.toml .
-RUN pip install --no-cache-dir .
+# Install uv
+RUN pip install uv
 
-# Copy application
-COPY server.py .
+# Copy only dependency files first to leverage Docker cache
+COPY pyproject.toml ./
 
-# Expose port
+# Install dependencies with uv
+RUN uv pip install --system .
+
+# Stage 2: Final image
+FROM python:3.11-slim-bullseye
+
+# Install curl for health checks
+RUN apt-get update && apt-get install -y --no-install-recommends curl \
+    && rm -rf /var/lib/apt/lists/*
+
+WORKDIR /app
+
+# Copy installed dependencies from builder
+COPY --from=builder /usr/local/lib/python3.11/site-packages/ /usr/local/lib/python3.11/site-packages/
+COPY --from=builder /usr/local/bin/ /usr/local/bin/
+
+# Copy application code
+COPY server.py ./
+
+# Expose the port Uvicorn will listen on
 EXPOSE 8000
 
-# Health check
-HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
-    CMD python -c "import httpx; httpx.get('http://localhost:8000/health').raise_for_status()"
-
-# Run server
+# Run the server
 CMD ["python", "server.py"]