feat: Archipelago demo stack (lightweight)

neode-ui/Dockerfile.backend

@@ -0,0 +1,25 @@
+FROM node:22-alpine
+
+WORKDIR /app
+
+# Install runtime dependencies
+RUN apk add --no-cache wget curl docker-cli
+
+# Copy package files
+COPY neode-ui/package*.json ./
+
+# Install Node dependencies (need all deps for mock backend)
+RUN npm install
+
+# Copy application code
+COPY neode-ui/ ./
+
+# Expose port
+EXPOSE 5959
+
+# Health check
+HEALTHCHECK --interval=30s --timeout=15s --retries=5 --start-period=180s \
+  CMD wget --quiet --tries=1 --spider http://localhost:5959/health || exit 1
+
+# Start the mock backend with error handling
+CMD ["sh", "-c", "node mock-backend.js 2>&1 || (echo 'ERROR: Backend failed to start'; cat /app/package.json; ls -la /app; sleep infinity)"]