lesson 4.1: added go example

dev-1/lesson-4.1/go/Makefile

@@ -0,0 +1,4 @@
+
+.PHONY: run
+run:
+	go run main.go

dev-1/lesson-4.1/go/go.mod

@@ -0,0 +1,19 @@
+module ydb-sample
+
+go 1.25.3
+
+require github.com/ydb-platform/ydb-go-sdk/v3 v3.117.1
+
+require (
+	github.com/golang-jwt/jwt/v4 v4.5.2 // indirect
+	github.com/google/uuid v1.6.0 // indirect
+	github.com/jonboulle/clockwork v0.5.0 // indirect
+	github.com/ydb-platform/ydb-go-genproto v0.0.0-20250911135631-b3beddd517d9 // indirect
+	golang.org/x/net v0.46.0 // indirect
+	golang.org/x/sync v0.17.0 // indirect
+	golang.org/x/sys v0.37.0 // indirect
+	golang.org/x/text v0.30.0 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20251014184007-4626949a642f // indirect
+	google.golang.org/grpc v1.76.0 // indirect
+	google.golang.org/protobuf v1.36.10 // indirect
+)

dev-1/lesson-4.1/go/issue/issue.go

@@ -0,0 +1,13 @@
+package issue
+
+import (
+	"time"
+)
+
+type Issue struct {
+	Id         int64     `sql:"id"`
+	Title      string    `sql:"title"`
+	Timestamp  time.Time `sql:"created_at"`
+	Author     string    `sql:"author"`
+	LinksCount uint64    `sql:"links_count"`
+}

dev-1/lesson-4.1/go/issue/issue_links_count.go

@@ -0,0 +1,6 @@
+package issue
+
+type IssueLinksCount struct {
+	Id         int64  `sql:"id"`
+	LinksCount uint64 `sql:"links_count"`
+}