feat: 优化dockerfile文件

Dockerfile

@@ -9,6 +9,8 @@
 ARG NODE_IMAGE=node:24-alpine
 ARG GOLANG_IMAGE=golang:1.25-alpine
 ARG ALPINE_IMAGE=alpine:3.19
+ARG GOPROXY=https://goproxy.cn,direct
+ARG GOSUMDB=sum.golang.google.cn
 
 # -----------------------------------------------------------------------------
 # Stage 1: Frontend Builder
@@ -34,6 +36,11 @@ FROM ${GOLANG_IMAGE} AS backend-builder
 ARG VERSION=docker
 ARG COMMIT=docker
 ARG DATE
+ARG GOPROXY
+ARG GOSUMDB
+
+ENV GOPROXY=${GOPROXY}
+ENV GOSUMDB=${GOSUMDB}
 
 # Install build dependencies
 RUN apk add --no-cache git ca-certificates tzdata