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/service/upstreamimpl.go

@@ -0,0 +1,49 @@
+// ================================================================================
+// Code generated and maintained by GoFrame CLI tool. DO NOT EDIT.
+// You can delete these comments if you wish manually maintain this interface file.
+// ================================================================================
+
+package service
+
+import (
+	"context"
+	"git.5iot.com/iotlcm-public/iotlcm-upstream-proxy/internal/model"
+)
+
+type (
+	ISimDX interface {
+		NewTemp(ctx context.Context, channelConfig *model.SimChannelConfigItemCache) model.SimCardChannelI
+		SimBase(ctx context.Context, input *model.SimBaseReqJson) (model.SimBaseResJson, error)
+	}
+	ISimYD interface {
+		NewTemp(ctx context.Context, channelConfig *model.SimChannelConfigItemCache) model.SimCardChannelI
+		SimBase(ctx context.Context, input *model.SimBaseReqJson) (model.SimBaseResJson, error)
+	}
+)
+
+var (
+	localSimDX ISimDX
+	localSimYD ISimYD
+)
+
+func SimDX() ISimDX {
+	if localSimDX == nil {
+		panic("implement not found for interface ISimDX, forgot register?")
+	}
+	return localSimDX
+}
+
+func RegisterSimDX(i ISimDX) {
+	localSimDX = i
+}
+
+func SimYD() ISimYD {
+	if localSimYD == nil {
+		panic("implement not found for interface ISimYD, forgot register?")
+	}
+	return localSimYD
+}
+
+func RegisterSimYD(i ISimYD) {
+	localSimYD = i
+}