chore: 初始开源发布

iotlcm-openapi：对外 OpenAPI 网关（V3 接口 + 旧版兼容接口）。

- Go module：iotlcm-openapi → git.5iot.com/iotlcm-public/iotlcm-openapi（178 文件）
- 凭据与地址脱敏：JWT signingKey、MySQL DSN、Redis 口令、
  RabbitMQ DSN 全部改为 ${*} 占位；私网 IP → 文档地址段
- 7 处真实手机号 → 合法 11 位编造号
- 启动 banner 统一 IOTLCM 方块字 + 社区惯例署名
- 移除内部资产：CI 触发器
- Dockerfile 改用公共基础镜像，移除 GOPRIVATE 内网设置
- README 重写（原为 GoFrame 模板占位文案），补 Apache-2.0 LICENSE，
  LF 行尾 + .gitattributes

internal/packed/response/response.go

@@ -0,0 +1,81 @@
+// package response
+// @Link  https://github.com/xiujiecn/xiu-admin
+// @Copyright  Copyright (c) 2025 LiXiujie
+// @Author  Lxj <li@xiujie.cn>
+// @License  https://github.com/xiujiecn/xiu-admin/blob/master/LICENSE
+package response
+
+import (
+	"fmt"
+	"io"
+	"net/http"
+	"time"
+
+	"github.com/gogf/gf/v2/frame/g"
+	"github.com/gogf/gf/v2/net/ghttp"
+	"github.com/gogf/gf/v2/os/gtime"
+)
+
+type JsonResponse struct {
+	Code    int         `json:"code"`
+	Message string      `json:"message"`
+	Data    interface{} `json:"data"`
+	Error   interface{} `json:"error"`
+}
+
+type OldJsonResponse struct {
+	Status  int         `json:"status"`
+	Message string      `json:"message"`
+	Result  interface{} `json:"result"`
+}
+
+func Json(r *ghttp.Request, code int, message string, data ...interface{}) {
+	var responseData interface{}
+	if len(data) > 0 {
+		responseData = data[0]
+	} else {
+		responseData = g.Map{}
+	}
+	// g.Log().Infof(r.GetCtx(), "response.Json: %v", responseData)
+	r.Response.WriteJson(JsonResponse{
+		Code:    code,
+		Message: message,
+		Data:    responseData,
+	})
+}
+
+func JsonExit(r *ghttp.Request, code int, message string, data ...interface{}) {
+	Json(r, code, message, data...)
+	r.ExitAll()
+}
+
+// 向前端返回Excel文件 参数 content 为上面生成的io.ReadSeeker， fileTag 为返回前端的文件名
+func Excel(r *ghttp.Request, content io.ReadSeeker, fileTag string) {
+	fileName := fmt.Sprintf("%s%s%s.xlsx", gtime.Now().Format("Ymdhis"), `_`, fileTag)
+	r.Response.Header().Set("Content-Type", "application/vnd.ms-excel")
+	r.Response.Header().Set("Content-Disposition", fmt.Sprintf("attachment; filename=%s", fileName))
+	http.ServeContent(r.Response.Writer, r.Request, fileTag, time.Now(), content)
+}
+
+// 向前端返回Json文件 参数 content 为上面生成的io.ReadSeeker， fileTag 为返回前端的文件名
+func JsonFile(r *ghttp.Request, content io.ReadSeeker, fileTag string) {
+	fileName := fmt.Sprintf("%s%s%s.json", gtime.Now().Format("Ymdhis"), `_`, fileTag)
+	r.Response.Header().Set("Content-Type", "application/json")
+	r.Response.Header().Set("Content-Disposition", fmt.Sprintf("attachment; filename=%s", fileName))
+	http.ServeContent(r.Response.Writer, r.Request, fileTag, time.Now(), content)
+}
+
+func OldJson(r *ghttp.Request, code int, message string, data ...interface{}) {
+	var responseData interface{}
+	if len(data) > 0 {
+		responseData = data[0]
+	} else {
+		responseData = g.Map{}
+	}
+	// g.Log().Infof(r.GetCtx(), "response.Json: %v", responseData)
+	r.Response.WriteJson(OldJsonResponse{
+		Status:  code,
+		Message: message,
+		Result:  responseData,
+	})
+}