初始化 proxy 打包项目，对齐 xxxig 矿工项目

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

docker/Dockerfile.alpine

@@ -0,0 +1,50 @@
+FROM alpine:latest AS base
+
+# 根据目标架构设置构建参数
+ARG TARGETARCH
+
+RUN apk update && apk add --no-cache \
+    git \
+    make \
+    cmake \
+    libstdc++ \
+    gcc \
+    g++ \
+    automake \
+    libtool \
+    autoconf \
+    linux-headers \
+    libuv-dev \
+    openssl-dev \
+    hwloc-dev
+
+FROM base AS build
+
+ARG XXXIG_PROXY_VERSION
+ARG TARGETARCH
+ARG BUILDPLATFORM
+ARG TARGETPLATFORM
+
+RUN git clone --recursive https://github.com/wangdefaa/xxxig-proxy.git && \
+    cd xxxig-proxy && \
+    git checkout ${XXXIG_PROXY_VERSION}
+
+WORKDIR /xxxig-proxy
+
+# 根据目标架构优化编译
+RUN mkdir build && cd build && \
+    if [ "$BUILDPLATFORM" != "$TARGETPLATFORM" ]; then \
+        MAKE_JOBS="-j2"; \
+    else \
+        MAKE_JOBS="-j$(nproc)"; \
+    fi && \
+    echo "Building with parallel jobs: $MAKE_JOBS (cross-compile: $([ "$BUILDPLATFORM" != "$TARGETPLATFORM" ] && echo yes || echo no))" && \
+    cmake .. -DCMAKE_BUILD_TYPE=Release && \
+    make $MAKE_JOBS
+
+FROM scratch
+
+ARG TARGETARCH
+
+COPY --from=build /xxxig-proxy/build/xxxig-proxy /linux_${TARGETARCH}/xxxig-proxy
+COPY --from=build /xxxig-proxy/src/config.json /linux_${TARGETARCH}/config.json