first commit

backend/Dockerfile

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+FROM golang:1.25-alpine AS builder
+
+RUN apk add --no-cache git
+
+WORKDIR /app
+
+COPY go.mod go.sum ./
+
+RUN go mod download
+
+COPY . .
+
+RUN --mount=type=cache,target=/root/.cache/go-build \
+    --mount=type=cache,target=/go/pkg/mod \
+    CGO_ENABLED=0 GOOS=linux go build -o main .
+
+FROM alpine:latest
+WORKDIR /root/
+
+COPY --from=builder /app/main .
+
+EXPOSE 8090
+CMD ["./main"]