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/library/batchimport/batch_no_test.go

@@ -0,0 +1,75 @@
+package batchimport
+
+import (
+	"context"
+	"strings"
+	"testing"
+	"time"
+)
+
+func TestNormalizeBatchNoPrefix(t *testing.T) {
+	prefix, err := normalizeBatchNoPrefix(" inb ")
+	if err != nil {
+		t.Fatalf("normalize prefix: %v", err)
+	}
+	if prefix != "INB" {
+		t.Fatalf("unexpected prefix: %s", prefix)
+	}
+
+	if _, err = normalizeBatchNoPrefix("IN"); err == nil {
+		t.Fatal("expected error for non-three-character prefix")
+	}
+}
+
+func TestFormatBatchNo(t *testing.T) {
+	now := time.Date(2026, 8, 10, 12, 34, 56, 789000000, time.Local)
+	batchNo, err := formatBatchNo("REN", now, 7)
+	if err != nil {
+		t.Fatalf("format batch no: %v", err)
+	}
+	if batchNo != "REN20260810123456007" {
+		t.Fatalf("unexpected batch no: %s", batchNo)
+	}
+	if len(batchNo) != 20 {
+		t.Fatalf("unexpected batch no length: %d", len(batchNo))
+	}
+	if strings.Contains(batchNo, "789") {
+		t.Fatalf("batch no should not include milliseconds: %s", batchNo)
+	}
+}
+
+func TestFormatBatchNoRejectsOverflowSequence(t *testing.T) {
+	_, err := formatBatchNo("REN", time.Now(), 1000)
+	if err == nil {
+		t.Fatal("expected overflow sequence error")
+	}
+}
+
+func TestBatchNoBoundaries(t *testing.T) {
+	now := time.Date(2026, 10, 12, 23, 59, 59, 0, time.FixedZone("CST", 8*3600))
+	for _, sequence := range []int64{-1, 0, 1000} {
+		if _, err := formatBatchNo("REN", now, sequence); err == nil {
+			t.Fatalf("sequence %d should be rejected", sequence)
+		}
+	}
+	for _, sequence := range []int64{1, 999} {
+		number, err := formatBatchNo("REN", now, sequence)
+		if err != nil || len(number) != 20 {
+			t.Fatalf("sequence %d: number=%q err=%v", sequence, number, err)
+		}
+	}
+	if batchNoSequenceKey(now) != "iotlcm:batch:no:seq:20261012" || batchNoSequenceKey(now.Add(time.Second)) != "iotlcm:batch:no:seq:20261013" {
+		t.Fatal("daily sequence key does not roll over at midnight")
+	}
+}
+
+func TestNextBatchNoRejectsInvalidPrefixBeforeRedis(t *testing.T) {
+	for _, prefix := range []string{"", " ", "RE", "RENEW"} {
+		for _, ctx := range []context.Context{nil, context.Background()} {
+			number, err := NextBatchNoContext(ctx, prefix)
+			if err == nil || number != "" {
+				t.Fatalf("prefix %q: number=%q err=%v", prefix, number, err)
+			}
+		}
+	}
+}