[CI] 容器工具链

.ci/Dockerfile

@@ -1,15 +1,15 @@
 FROM ubuntu:24.04
 
-# 1. 【关键优化】仅添加LLVM仓库并安装Clang 19必要组件
+# 1. 安装完整的交叉编译环境 (Clang + MinGW-w64)
 RUN apt-get update && \
     apt-get install -y --no-install-recommends \
         wget gnupg ca-certificates && \
     wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | apt-key add - && \
     echo "deb http://apt.llvm.org/noble/ llvm-toolchain-noble-19 main" > /etc/apt/sources.list.d/llvm.list && \
     apt-get update && \
-    # 只安装最核心的Clang工具链、基础工具和xmake的依赖
     apt-get install -y --no-install-recommends \
         clang-19 lld-19 libc++-19-dev libc++abi-19-dev \
+        mingw-w64 g++-mingw-w64 \
         tar git curl \
         && rm -rf /var/lib/apt/lists/* && \
     update-alternatives --install /usr/bin/clang clang /usr/bin/clang-19 100 && \