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Dockerfile

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+# Build frontend
+FROM node:20-alpine AS frontend
+WORKDIR /app/frontend
+COPY frontend/package*.json ./
+RUN if [ -f package-lock.json ]; then npm ci; else npm install; fi
+COPY frontend ./
+RUN npm run build
+
+# Build backend
+FROM golang:1.23-alpine AS backend
+WORKDIR /app/backend
+RUN apk add --no-cache git
+COPY backend/go.mod ./
+COPY backend/go.sum ./
+RUN go mod download
+COPY backend ./
+RUN CGO_ENABLED=0 go build -o /app/bin/server ./cmd/server
+
+# Final image
+FROM alpine:3.20
+RUN adduser -D -H -u 10001 app && apk add --no-cache ca-certificates \
+  && mkdir -p /data /app \
+  && chown -R app:app /data /app
+WORKDIR /app
+COPY --from=backend /app/bin/server /app/server
+COPY --from=frontend /app/frontend/dist /app/frontend/dist
+EXPOSE 8088
+ENV PORT=8088
+CMD ["/app/server"]