chore: 初始开源发布

iotlcm-upstream-proxy：渠道缓存与转发网关。

- 内联原私有依赖：yunze-public → internal/pub/（18 文件），
  yunze-pb/pb → internal/pb/（9 文件）；Consul 注册改用官方
  gogf/gf/contrib/registry/consul/v2（API 兼容）
- Go module：yz-svr → git.5iot.com/iotlcm-public/iotlcm-upstream-proxy
- 凭据与内部标识脱敏：MySQL/Redis/Consul 凭据、私网与生产 IP、内网域名
- 移除内部资产：CI 触发器
- Dockerfile 改用公共基础镜像，移除写死的 registry 凭据
- 补 Apache-2.0 LICENSE，重写 README，LF 行尾 + .gitattributes

internal/pub/xjpubconsts/http.go

@@ -0,0 +1,14 @@
+// Package xjpubconsts
+// @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 xjpubconsts
+
+const (
+	HTTPContentTypeXml    = "text/xml"
+	HTTPContentTypeHtml   = "text/html"
+	HTTPContentTypeStream = "text/event-stream"
+	HTTPContentTypeJson   = "application/json"
+	HTTPContentTypeExcel  = "application/octet-stream"
+)

internal/pub/xjpubconsts/services.go

@@ -0,0 +1,17 @@
+package xjpubconsts
+
+const (
+	ServiceTypeWeb    = "web"    // web服务
+	ServiceTypeQueue  = "queue"  // 队列服务
+	ServiceTypeRedis  = "redis"  // 缓存类型
+	ServiceTypeNotice = "notice" // 通知服务
+	ServiceTypeTask   = "task"   // 任务服务
+	ServiceTypeAccess = "access" // 接入服务
+)
+
+const (
+	ServiceNameYzAdminWeb         = "yzadmin-web-svc"          // 后台管理服务
+	ServiceNameYzUpstreamChanSvc  = "yzupstreamchan-grpc-svc"  // 上游通道服务
+	ServiceNameYzUpstreamProxySvc = "yzupstreamproxy-grpc-svc" // 上游代理服务
+	ServiceNameYzApiHttpSvc       = "yzapi-http-svc"           // API 服务
+)