chore: 初始开源发布

iotlcm-worker-svr：异步执行中枢（RabbitMQ 消费者 + 全量同步编排）。

- Go module：iotlcm-worker-svr → git.5iot.com/iotlcm-public/iotlcm-worker-svr（214 文件）
- 凭据与内部标识脱敏：MySQL/Redis 凭据、私网与生产 IP、内网域名、
  库名 xiujie_admin → iotlcm、哨兵名占位
- 159 处真实手机号 → 合法 11 位编造号（保留号段与后 4 位，维持互异，
  不破坏「校验 MSISDN 格式」等测试断言）
- 移除内部资产：CI 触发器、Jenkins 触发测试文档、预演门禁与镜像
  digest 记录
- Dockerfile 改用公共基础镜像（golang:1.25-alpine → alpine:3.23），
  移除写死的 git 凭据
- README 重写（架构/全量同步模型/配置/已知失败），补 Apache-2.0
  LICENSE，LF 行尾 + .gitattributes

已知：3 个测试包在源仓同一提交上同样失败（client/upstream、
service/allocate、service/inbound），属既有缺陷，本仓未引入亦未修复。

internal/consumer/rabbitmq/traffic_usage_retry_test.go

@@ -0,0 +1,60 @@
+package rabbitmq
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"git.5iot.com/iotlcm-public/iotlcm-worker-svr/internal/consts"
+	"git.5iot.com/iotlcm-public/iotlcm-worker-svr/internal/model"
+	"git.5iot.com/iotlcm-public/iotlcm-worker-svr/internal/service/trafficusage"
+	amqp "github.com/rabbitmq/amqp091-go"
+	"testing"
+	"time"
+)
+
+func TestTrafficUsageRetryRetainsPayload(t *testing.T) {
+	stubTrafficPublish(t)
+	usage := 12.5
+	handler := &trafficUsageHandlerStub{dailyErr: &trafficusage.Failure{Cause: errors.New("database down"), UsageMb: &usage}}
+	consumer := New(handler, nil, nil)
+	message := model.TrafficUsageDailyRetryMessage{SimKey: &model.SimKey{ICCID: "card"}, Card: model.TrafficUsageSimCard{Iccid: "card"}, QueryDate: "20260831"}
+	calls := 0
+	trafficUsagePublishDelayed = func(_ context.Context, queue, target string, delay time.Duration, body []byte, _ amqp.Table) error {
+		calls++
+		var retry model.TrafficUsageDailyRetryMessage
+		if err := json.Unmarshal(body, &retry); err != nil {
+			t.Fatal(err)
+		}
+		if retry.Attempt != 1 || retry.UsageMb == nil || *retry.UsageMb != usage || retry.QueryDate != message.QueryDate || retry.LastError == "" || delay != 30*time.Second || target != consts.QueueTrafficUsageDailyRetry || queue == target {
+			t.Fatalf("invalid retry: %+v", retry)
+		}
+		return nil
+	}
+	if err := consumer.handleTrafficUsageDailyRetry(context.Background(), message); err != nil || calls != 1 {
+		t.Fatalf("calls=%d err=%v", calls, err)
+	}
+	message.Attempt = 9
+	dlqCalls := 0
+	trafficUsagePublish = func(_ context.Context, queue string, body []byte, _ amqp.Table) error {
+		dlqCalls++
+		if queue != consts.QueueTrafficUsageDailyRetry+".dlq" {
+			t.Fatal(queue)
+		}
+		var retry model.TrafficUsageDailyRetryMessage
+		if err := json.Unmarshal(body, &retry); err != nil {
+			t.Fatal(err)
+		}
+		if retry.Attempt != 10 || retry.UsageMb == nil {
+			t.Fatal("DLQ lost snapshot")
+		}
+		return nil
+	}
+	if err := consumer.handleTrafficUsageDailyRetry(context.Background(), message); err != nil || dlqCalls != 1 || calls != 1 {
+		t.Fatalf("DLQ not published: %v", err)
+	}
+	expected := errors.New("broker unavailable")
+	trafficUsagePublish = func(context.Context, string, []byte, amqp.Table) error { return expected }
+	if err := consumer.handleTrafficUsageDailyRetry(context.Background(), message); !errors.Is(err, expected) {
+		t.Fatal("failed publication must not ack original")
+	}
+}