chore: 初始开源发布

iotlcm-sms：独立短信 HTTP/gRPC 服务，支持阿里云与腾讯云。

- Go module 迁移至 git.5iot.com/iotlcm-public/iotlcm-sms
- 补 Apache-2.0 LICENSE，重写 README（特性/配置/接口/部署/目录/测试）
- 配置改为 config.example.yaml + SMS_* 环境变量注入，仓库不含真实凭证
- 清理内部标识（私有镜像仓库 / 公司名 / 客户签名 / 真实模板ID / 真实手机号）
- 统一 LF 行尾并加 .gitattributes

internal/grpcapi/server.go

@@ -0,0 +1,51 @@
+package grpcapi
+
+import (
+	"context"
+	"encoding/json"
+
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/status"
+
+	"git.5iot.com/iotlcm-public/iotlcm-sms/api/pb"
+	"git.5iot.com/iotlcm-public/iotlcm-sms/internal/sms"
+)
+
+type Sender interface {
+	Send(context.Context, sms.Config, sms.Message) (sms.Result, error)
+}
+
+type Server struct {
+	pb.UnimplementedNoticeServer
+	sender Sender
+}
+
+func NewServer(sender Sender) *Server {
+	return &Server{sender: sender}
+}
+
+func (s *Server) Send(ctx context.Context, request *pb.SendReq) (*pb.SendRes, error) {
+	if request == nil {
+		return nil, status.Error(codes.InvalidArgument, "请求不能为空")
+	}
+
+	var config sms.Config
+	if err := json.Unmarshal(request.GetConfig(), &config); err != nil {
+		return nil, status.Errorf(codes.InvalidArgument, "config JSON 无效: %v", err)
+	}
+	var message sms.Message
+	if err := json.Unmarshal(request.GetParams(), &message); err != nil {
+		return nil, status.Errorf(codes.InvalidArgument, "params JSON 无效: %v", err)
+	}
+
+	result, _ := s.sender.Send(ctx, config, message)
+	responseHead := &pb.HeadRes{
+		Code:    int32(result.Code),
+		Message: result.Message,
+	}
+	if request.Head != nil {
+		responseHead.RouterId = request.Head.RouterId
+		responseHead.TraceId = request.Head.TraceId
+	}
+	return &pb.SendRes{Head: responseHead}, nil
+}

internal/grpcapi/server_test.go

@@ -0,0 +1,88 @@
+package grpcapi
+
+import (
+	"context"
+	"encoding/json"
+	"net"
+	"testing"
+
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/credentials/insecure"
+	"google.golang.org/grpc/status"
+	"google.golang.org/grpc/test/bufconn"
+
+	"git.5iot.com/iotlcm-public/iotlcm-sms/api/pb"
+	"git.5iot.com/iotlcm-public/iotlcm-sms/internal/sms"
+)
+
+type fakeSender struct {
+	config  sms.Config
+	message sms.Message
+	result  sms.Result
+}
+
+func (f *fakeSender) Send(_ context.Context, config sms.Config, message sms.Message) (sms.Result, error) {
+	f.config = config
+	f.message = message
+	return f.result, nil
+}
+
+func TestSend(t *testing.T) {
+	fake := &fakeSender{result: sms.Result{Code: 0, Message: "发送成功"}}
+	client, closeServer := newTestClient(t, fake)
+	defer closeServer()
+
+	config, _ := json.Marshal(sms.Config{ServiceType: sms.ServiceAliyun})
+	params, _ := json.Marshal(sms.Message{PhoneNumber: "138****8000", MsgContent: `{"code":"123456"}`})
+	response, err := client.Send(context.Background(), &pb.SendReq{
+		Head:   &pb.HeadReq{RouterId: 42, TraceId: "trace-1"},
+		Config: config,
+		Params: params,
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if response.Head.Code != 0 || response.Head.RouterId != 42 || response.Head.TraceId != "trace-1" {
+		t.Fatalf("unexpected response: %+v", response.Head)
+	}
+	if fake.config.ServiceType != sms.ServiceAliyun || fake.message.PhoneNumber != "138****8000" {
+		t.Fatalf("unexpected request: config=%+v message=%+v", fake.config, fake.message)
+	}
+}
+
+func TestSendRejectsInvalidJSON(t *testing.T) {
+	client, closeServer := newTestClient(t, &fakeSender{})
+	defer closeServer()
+
+	_, err := client.Send(context.Background(), &pb.SendReq{Config: []byte(`{`), Params: []byte(`{}`)})
+	if status.Code(err) != codes.InvalidArgument {
+		t.Fatalf("code = %v, want %v; err=%v", status.Code(err), codes.InvalidArgument, err)
+	}
+}
+
+func newTestClient(t *testing.T, sender Sender) (pb.NoticeClient, func()) {
+	t.Helper()
+	listener := bufconn.Listen(1024 * 1024)
+	server := grpc.NewServer()
+	pb.RegisterNoticeServer(server, NewServer(sender))
+	go func() {
+		_ = server.Serve(listener)
+	}()
+
+	conn, err := grpc.NewClient(
+		"passthrough:///bufnet",
+		grpc.WithTransportCredentials(insecure.NewCredentials()),
+		grpc.WithContextDialer(func(context.Context, string) (net.Conn, error) {
+			return listener.Dial()
+		}),
+	)
+	if err != nil {
+		t.Fatal(err)
+	}
+	return pb.NewNoticeClient(conn), func() {
+		_ = conn.Close()
+		server.Stop()
+		_ = listener.Close()
+	}
+}