init: hgmj server initial commit

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

models/v/mediamod/media_latest_published_test.go

@@ -0,0 +1,25 @@
+package mediamod
+
+import (
+	"testing"
+	"time"
+)
+
+func TestNormalizeLatestPublishedAt(t *testing.T) {
+	createdAt := time.Date(2026, 7, 20, 1, 0, 0, 0, time.UTC)
+	updateTime := createdAt.Add(time.Hour)
+	contentUpdateTime := updateTime.Add(time.Hour)
+	media := &Media{Status: 1, CreatedAt: createdAt, UpdateTime: updateTime, ContentUpdateTime: contentUpdateTime}
+	normalizeLatestPublishedAt(media)
+	if !media.LatestPublishedAt.Equal(contentUpdateTime) {
+		t.Fatalf("latestPublishedAt = %v, want %v", media.LatestPublishedAt, contentUpdateTime)
+	}
+}
+
+func TestNormalizeLatestPublishedAtDoesNotPublishOffShelfMedia(t *testing.T) {
+	media := &Media{Status: 0, CreatedAt: time.Now()}
+	normalizeLatestPublishedAt(media)
+	if !media.LatestPublishedAt.IsZero() {
+		t.Fatalf("off-shelf media latestPublishedAt = %v, want zero", media.LatestPublishedAt)
+	}
+}