init: 自 zomaintain/backend/zonat 平移独立成库; module path 改为 git.zeroonesoft.cn/golib/zonat; 内部 import 同步重写

cmd/http-demo/main.go

@@ -0,0 +1,25 @@
+// 测试目标：HTTP 服务，验证纯 TCP 隧道承载 HTTP（webshell/文件服务场景）。
+package main
+
+import (
+	"flag"
+	"io"
+	"log"
+	"net/http"
+)
+
+func main() {
+	addr := flag.String("addr", "127.0.0.1:9001", "监听地址")
+	flag.Parse()
+
+	mux := http.NewServeMux()
+	mux.HandleFunc("/hello", func(w http.ResponseWriter, r *http.Request) {
+		w.Header().Set("Content-Type", "application/json")
+		w.Write([]byte(`{"hello":"git.zeroonesoft.cn/golib/zonat","via":"tcp-tunnel"}`))
+	})
+	mux.HandleFunc("/echo", func(w http.ResponseWriter, r *http.Request) {
+		io.Copy(w, r.Body)
+	})
+	log.Println("http-demo 监听", *addr)
+	log.Fatal(http.ListenAndServe(*addr, mux))
+}