add: stand configs

PROD_STAND/RABBIT/rabbit-worker/Dockerfile

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+# Сборочный этап: собираем статический бинарник.
+FROM golang:1.22-alpine AS build
+
+WORKDIR /src
+
+COPY go.mod ./
+RUN go mod download
+
+COPY . .
+
+RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -o /out/worker ./
+
+# Рантайм-этап: минимальный образ с ca-certificates.
+FROM alpine:3.20
+
+RUN apk add --no-cache ca-certificates
+
+WORKDIR /app
+COPY --from=build /out/worker /app/worker
+
+EXPOSE 8080
+
+CMD ["/app/worker"]