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/service/old_api.go

@@ -0,0 +1,39 @@
+// ================================================================================
+// 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-openapi/internal/model"
+	"git.5iot.com/iotlcm-public/iotlcm-openapi/internal/model/entity"
+)
+
+type (
+	IOldApiQuery interface {
+		StatusConversion(simCardInfo entity.TSimCardInfo) int
+		QuerySimCard(ctx context.Context, input *model.SimCardInfoInput) (output *model.SimCardInfoOutput, err error)
+		QuerySimDataUsage(ctx context.Context, input *model.SimDataUsageOldInput) (output *model.SimDataUsageOldOutput, err error)
+		QuerySimDataUsageMonthly(ctx context.Context, input *model.SimDataUsageMonthlyOldInput) (output *model.SimDataUsageMonthlyOldOutput, err error)
+		QuerySimStatus(ctx context.Context, input *model.SimStatusOldInput) (output *model.SimStatusOldOutput, err error)
+		QuerySimSession(ctx context.Context, input *model.SimStatusOnlineOldInput) (output *model.SimStatusOnlineOldOutput, err error)
+		QueryCardInfoList(ctx context.Context, input *model.QueryCardInfoListInput) (output []model.QueryCardInfoListOutput, err error)
+	}
+)
+
+var (
+	localOldApiQuery IOldApiQuery
+)
+
+func OldApiQuery() IOldApiQuery {
+	if localOldApiQuery == nil {
+		panic("implement not found for interface IOldApiQuery, forgot register?")
+	}
+	return localOldApiQuery
+}
+
+func RegisterOldApiQuery(i IOldApiQuery) {
+	localOldApiQuery = i
+}