add node runner

gitea_runner_node/Dockerfile

@@ -0,0 +1,35 @@
+# syntax=docker/dockerfile:1
+# Gitea Action Runner Node.js Image
+# 基于 gitea_runner_base 添加多版本 Node.js 和包管理器
+
+FROM timi/gitea_runner_base:latest
+
+LABEL maintainer="www.imyeyu.com"
+LABEL description="Gitea Action Runner with Node.js 18/20/22 and multiple package managers"
+
+# Node.js 安装目录
+ENV NODE_BASE=/usr/local/node
+
+# 安装 Node.js 多版本环境和包管理器
+RUN npm install -g n \
+    && mkdir -p ${NODE_BASE} \
+    && n install 18 \
+    && n install 20 \
+    && n install 22 \
+    && n use 20 \
+    && npm install -g yarn pnpm \
+    && cat <<'EOF' > /usr/local/bin/use-node \
+#!/bin/bash
+case "$1" in
+    18|20|22)
+        n use "$1" > /dev/null 2>&1
+        export PATH="/usr/local/n/versions/node/$1/bin:${PATH}"
+        echo "Switched to Node.js $1: $(node -v)"
+        ;;
+    *)
+        echo "Usage: source use-node [18|20|22]"
+        return 1
+        ;;
+esac
+EOF
+    && chmod +x /usr/local/bin/use-node